School of Chemistry and Molecular Biosciences

Professor Stephen Barker

BSc (James Cook), PhD (Macquarie) Genetics
Professor
School of Chemistry and Molecular Biosciences
+61 7 336 53303
Molecular Biosciences Building (76), Room 357
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Primary research interest

Evolutionary genetics and genomics of parasitic arthropods

Research focus and collaborations

At present, I study the ticks of Australia and elsewhere (>60 papers published) including two monographs, "Barker & Walker (2014) Ticks of Australia. The species that infest domestic animals and humans” (144 pages) and "Barker & Barker (2023) Ticks of Australasia: 125 species of ticks in and around Australia" (644 pages).

Collaborations

  • Professor Dmitry Apanaskevich, The Smithsonian, & Georgia South University, Statesboro, GA
  • Dr Ryo Nakao, University of Hokkaido, Sapporo, Japan 
  • Professor Lance Durden, Georgia South University, Statesboro, GA
  • Dr Ben Mans, Onderstepoort Veterinary Instituted Pretoria, South Africa 
  • Dr Renfu Shao, University of Sunshine Coast, QLD
  • Dr Alex Gofton, CSIRO
  • Captian Chris Peatey & Ms Donna Mackenzie, Australian Defence Force 
  • Professor Marcelo Labruna, University of Sao Paulo, Brazil
  • Dr Alan R. Walker, Royal (Dick) School of Veterinary Studies, Edinburgh, Scotland

Funded projects

  • Portugal Science and Technology (PTDC)
  • Japan Society for the Promotion of Science (JSPS)
  • National Science Foundation of China (NSFC)

Teaching interests 

Genetics, Genomics and Parasitology especially PARA3002 (Biomedical Parasitology), which I have coordinated for 25 years.

Community out-reach

  • Paralysis ticks, people, dogs and cats.
  • Engagement with families of primary-school aged children on the control of head lice e.g. Inaugural National Head Lice Awareness Days since Friday 4 February 2011.
  • Resident Scientist at Durack State School, Western Brisbane. I have been the resident scientist at this school for 15 years.

Student supervision

Available projects:

  • Insights into the function and evolution of mitochondria (mt), and the animals that harbour these mt, from entire nuclear and mt transcriptomes (Illumina HiSeq data) and from entire mt genome transcripts (PacBio data).
  • Phylogeny of soft ticks: join the International Tick Tree of Life Project.
  • Phylogeny (evolutionary history) of ticks predicted from the nucleotide sequences (mitochondrial and SSU rRNA). Students will sequence part of the mitochondrial genomes of ticks from Africa and elsewhere then use a computer to predict the evolutionary tree of the ticks.

Featured publications - last 5 years

Publications

Book Chapters (2)
Journal Articles (186)
Conference Papers (10)

Book Chapters

Barker, S. C. and Murrell, A. (2008). Systematics and evolution of ticks with a list of valid genus and species names. Ticks: biology, disease and control. (pp. 1-39) edited by Alan S. Bowman and Patricia A. Nuttall. Cambridge, United Kingdom: Cambridge University Press. doi: 10.1017/CBO9780511551802.002
Black IV, W.C. and Barker, S.C. (2005). Systematic relationships among disease vectors. Biology of Disease Vectors. (pp. 389-413) edited by W.C. Marquardt. London: Elsevier.

Journal Articles

Teo, Ernest J. M., Russell, Heather, Lambert, Tracey, Webster, Robert, Yappa, Amanda, McDonagh, Phillip, Harper, Gavin, Barker, Dayana, Nakao, Ryo and Barker, Stephen C. (2024). The weather determined how ‘hot’ the tick paralysis season was in eastern Australia: 2018 to 2024. Veterinary Parasitology, 331 110252, 110252. doi: 10.1016/j.vetpar.2024.110252
Teo, Ernest J.M., Apanaskevich, Dmitry A., Barker, Stephen C. and Nakao, Ryo (2024). Dermacentor (Indocentor) auratus Supino 1897: Potential geographic range, and medical and veterinary significance. Acta Tropica, 254 107197, 107197. doi: 10.1016/j.actatropica.2024.107197
Moustafa, Mohamed Abdallah Mohamed, Mohamed, Wessam M. A., Chatanga, Elisha, Nagib, Doaa, Matsuno, Keita, Gofton, Alexander W., Barker, Stephen C., Nonaka, Nariaki and Nakao, Ryo (2024). Unraveling the phylogenetics of genetically closely related species, Haemaphysalis japonica and Haemaphysalis megaspinosa, using entire tick mitogenomes and microbiomes. Scientific Reports, 14 (1) 9961, 1-14. doi: 10.1038/s41598-024-60163-x
APANASKEVICH, DMITRY A., GREIMAN, STEPHEN E., FEDOROV, DENIS S., AHMED, ROKEYA and BARKER, STEPHEN C. (2024). A new subgenus of hard ticks, Filippoviella n. subgen. (Acari: Ixodidae) comprising Ixodes trianguliceps Birula, 1895 and I. ghilarovi Filippova & Panova, 1988, parasites of small mammals in Europe and Asia. Zootaxa, 5443 (2), 224-236. doi: 10.11646/zootaxa.5443.2.5
Teo, Ernest J.M., Evasco, Kimberly L., Barker, Dayana, Levin, M.L. and Barker, Stephen C. (2024). The geographic limits and life history of the tropical brown dog tick, Rhipicephalus linnaei (Audouin, 1826), in Australia with notes on the spread of Ehrlichia canis. International Journal for Parasitology, 54 (8-9), 453-462. doi: 10.1016/j.ijpara.2024.04.004
Uribe, Juan E., Kelava, Samuel, Nava, Santiago, Cotes-Perdomo, Andrea P., Castro, Lyda R., Rivera-Paéz, Fredy A., Perea, Silvia, Mans, Ben J., Gofton, Alexander, Teo, Ernest J. M., Zardoya, Rafael and Barker, Stephen C. (2024). New insights into the molecular phylogeny, biogeographical history, and diversification of Amblyomma ticks (Acari: Ixodidae) based on mitogenomes and nuclear sequences. Parasites & Vectors, 17 (1) 139. doi: 10.1186/s13071-024-06131-w
BARKER, STEPHEN C., KELAVA, SAMUEL, MANS, BEN J., APANASKEVICH, DMITRY A., SEEMAN, OWEN D., GOFTON, ALEXANDER, SHAO, RENFU, TEO, ERNEST J. M., EVASCO, KIMBERLEY L., SOENNICHSEN, KARI F., BARKER, DAYANA and NAKAO, RYO (2024). The first cryptic genus of Ixodida, Cryptocroton n. gen. for Amblyomma papuanum Hirst, 1914: a tick of North Queensland, Australia, and Papua New Guinea. Zootaxa, 5410 (1), 91-111. doi: 10.11646/zootaxa.5410.1.5
Kelava, Samuel, Apanaskevich, Dmitry A., Shao, Renfu, Gofton, Alexander W., Mans, Ben J., Teo, Ernest J. M., Norval, Gerrut, Barker, Dayana, Nakao, Ryo and Barker, Stephen C. (2024). Insights from entire mitochondrial genome sequences into the phylogeny of ticks of the genera Haemaphysalis and Archaeocroton with the elevation of the subgenus Alloceraea Schulze, 1919 back to the status of a genus. Medical and Veterinary Entomology, 38 (2), 189-204. doi: 10.1111/mve.12708
Teo, E.J.M., Russell, H., Lambert, T., Webster, R., Yappa, A., McDonagh, P., Harper, G., Barker, D. and Barker, S.C. (2023). The weather determines the number of cases of tick paralysis in dogs and cats in eastern Australia, caused by Ixodes holocyclus, the eastern paralysis tick. Australian Veterinary Journal, 101 (12), 479-489. doi: 10.1111/avj.13289
Barker, Stephen C., Kelava, Samuael, Heath, Allen C.G., Seeman, Owen D., Apanaskevich, Dmitry A., Mans, Ben J., Shao, Renfu, Gofton, Alexander W., Teo, Ernest J.M., Byrne, Andrew F., Ito, Takuya, Tan, Craig J., Barker, Dayana and Nakao, Ryo (2023). A new subgenus, Australixodes n. subgen. (Acari: Ixodidae), for the kiwi tick, Ixodes anatis Chilton, 1904, and validation of the subgenus Coxixodes Schulze, 1941 with a phylogeny of 16 of the 22 subgenera of Ixodes Latreille, 1795 from entire mitochondrial genome sequences. Zootaxa, 5325 (4), 529-540. doi: 10.11646/zootaxa.5325.4.4
Barker, Stephen C. and Barker, Dayana (2023). Ticks of Australasia: 125 species of ticks in and around Australia. Zootaxa, 5253 (1), 1-670. doi: 10.11646/zootaxa.5253.1.1
Teo, Ernest J. M., Bull, C. Michael, Burzacott, Dale, Zalucki, Myron P., Furlong, Michael J., Barker, Dayana and Barker, Stephen C. (2023). The abundance and geographic distributions of two species of ticks in South Australia: Bundey Bore revisited. Austral Ecology, 48 (3), 563-584. doi: 10.1111/aec.13284
Teo, Ernest J. M., Arganda, Alexa, Webster, Robert, Yappa, Amanda, Barker, Dayana and Barker, Stephen C. (2023). Two seasons of tick paralysis in Victoria yet one season in Queensland and New South Wales, Australia. International Journal for Parasitology, 53 (1), 43-53. doi: 10.1016/j.ijpara.2022.10.004
Kelava, Samuel, Mans, Ben J., Shao, Renfu, Barker, Dayana, Teo, Ernest J. M., Chatanga, Elisha, Gofton, Alexander W., Moustafa, Mohamed Abdallah Mohamed, Nakao, Ryo and Barker, Stephen C. (2022). Seventy-eight entire mitochondrial genomes and nuclear rRNA genes provide insight into the phylogeny of the hard ticks, particularly the Haemaphysalis species, Africaniella transversale and Robertsicus elaphense. Ticks and Tick-borne Diseases, 14 (2) 102070, 102070. doi: 10.1016/j.ttbdis.2022.102070
Apanaskevich, Dmitry A., Apanaskevich, Maria A., Klimov, Pavel B., Edgy, Brett M., Bermdez, Sergio E., Labruna, Marcelo B., Korzeev, Andrei I. and Barker, Stephen C. (2022). Description of eight new species of Ixodes Latreille, 1795 (Acari: Ixodidae) and redescription of I. auritulus Neumann, 1904, parasites of birds in the Australasian, Nearctic and Neotropical Regions. Zootaxa, 5173 (1), 1-73. doi: 10.11646/zootaxa.5173.1.1
Barker, Dayana, Kelava, Samuel, Seeman, Owen D., Shao, Renfu, Seaniger, James R., Jones, Malcolm K., Apanaskevich, Maria A., Nakao, Ryo, Apanaskevich, Dmitry A. and Barker, Stephen C. (2022). Rediscovery of Ixodes confusus in Australia with the first description of the male from Australia, a redescription of the female, the mitochondrial (mt) genomes of five species of Ixodes. International Journal for Parasitology: Parasites and Wildlife, 18, 1-11. doi: 10.1016/j.ijppaw.2022.03.006
Mohamed, Wessam Mohamed Ahmed, Moustafa, Mohamed Abdallah Mohamed, Thu, May June, Kakisaka, Keita, Chatanga, Elisha, Ogata, Shohei, Hayashi, Naoki, Taya, Yurie, Ohari, Yuma, Naguib, Doaa, Qiu, Yongjin, Matsuno, Keita, Bawm, Saw, Htun, Lat Lat, Barker, Stephen C., Katakura, Ken, Ito, Kimihito, Nonaka, Nariaki and Nakao, Ryo (2022). Comparative mitogenomics elucidates the population genetic structure of Amblyomma testudinarium in Japan and a closely related Amblyomma species in Myanmar. Evolutionary Applications, 15 (7), 1062-1078. doi: 10.1111/eva.13426
Barker, Dayana, Kelava, Samuel, Shao, Renfu, Seeman, Owen D., Jones, Malcolm K., Nakao, Ryo, Barker, Stephen C. and Apanaskevich, Dmitry A. (2022). Description of the female, nymph and larva and mitochondrial genome, and redescription of the male of Ixodes barkeri Barker, 2019 (Acari: Ixodidae), from the short-beaked echidna, Tachyglossus aculeatus, with a consideration of the most suitable subgenus for this tick. Parasites and Vectors, 15 (1) 117, 117. doi: 10.1186/s13071-022-05165-2
Mohamed, Wessam Mohamed Ahmed, Moustafa, Mohamed Abdallah Mohamed, Kelava, Samuel, Barker, Dayana, Matsuno, Keita, Nonaka, Nariaki, Shao, Renfu, Mans, Ben J., Barker, Stephen C. and Nakao, Ryo (2022). Reconstruction of mitochondrial genomes from raw sequencing data provides insights on the phylogeny of Ixodes ticks but suggests the caution for species misidentification. Ticks and Tick-borne Diseases, 13 (1) 101832, 101832. doi: 10.1016/j.ttbdis.2021.101832
Mumcuoğlu, Kosta Y., Pollack, Richard J., Reed, David, Barker, Stephen, Gordon, Shirley, Toloza, Ariel Ceferino, Picollo, Maria Ines, Özkan, Ayşegül Taylan, Chosidow, Olivier, Habedank, Birgit, Ibarra, Joanna, Meinking, Terri L. and Stichele, Robert Vander (2022). Baş biti enfestasyonlarının etkin kontrolü için uluslararası tavsiyeler. Turk Hijyen ve Deneysel Biyoloji Dergisi, 79 (4), 748-761. doi: 10.5505/TurkHijyen.2022.78872
Barker, Dayana, Seeman, Owen D. and Barker, Stephen C. (2021). The development of tick taxonomy and systematics in Australia and Papua New Guinea through the works of five late 20thcentury contributors and with comments on the place of Australasia in the study of the phylogeny and evolution of the ticks. Systematic and Applied Acarology, 26 (10), 1793-1832. doi: 10.11158/saa.26.10.1
Mans, Ben J., Kelava, Samuel, Pienaar, Ronel, Featherston, Jonathan, de Castro, Minique H., Quetglas, Juan, Reeves, Will K., Durden, Lance A., Miller, Myrna M., Laverty, Theresa M., Shao, Renfu, Takano, Ai, Kawabata, Hiroki, Moustafa, Mohamed Abdallah Mohamed, Nakao, Ryo, Matsuno, Keita, Greay, Telleasha L., Evasco, Kimberly L., Barker, Dayana and Barker, Stephen C. (2021). Nuclear (18S-28S rRNA) and mitochondrial genome markers of Carios (Carios) vespertilionis (Argasidae) support Carios Latreille, 1796 as a lineage embedded in the Ornithodorinae: re-classification of the Carios sensu Klompen and Oliver (1993) clade into its respective subgenera. Ticks and Tick-borne Diseases, 12 (4) 101688, 1-12. doi: 10.1016/j.ttbdis.2021.101688
Teo, Ernest J.M., Hailu, Semira, Kelava, Samuel, Zalucki, Myron P., Furlong, Michael J., Nakao, Ryo, Barker, Dayana and Barker, Stephen C. (2021). Climatic requirements of the southern paralysis tick, Ixodes cornuatus, with a consideration of its host, Vombatus ursinus, and the possible geographic range of the tick up to 2090. Ticks and Tick-borne Diseases, 12 (5) 101758, 1-16. doi: 10.1016/j.ttbdis.2021.101758
Teo, Ernest J. M., Vial, Melanie N., Hailu, Semira, Kelava, Samuel, Zalucki, Myron P., Furlong, Michael J., Barker, Dayana and Barker, Stephen C. (2021). Climatic requirements of the eastern paralysis tick, Ixodes holocyclus, with a consideration of its possible geographic range up to 2090. International Journal for Parasitology, 51 (4), 241-249. doi: 10.1016/j.ijpara.2020.08.011
Apanaskevich, Dmitry A. and Barker, Stephen C. (2021). Dermacentor kamshadalus (Acari: Ixodidae), a tick of Mountain Goats and sheep in Western United States, Canada, and Russia, is a valid species. Journal of Medical Entomology, 58 (2), 499-501. doi: 10.1093/jme/tjaa190
Kelava, Samuel, Mans, Ben J., Shao, Renfu, Moustafa, Mohamed Abdallah Mohamed, Matsuno, Keita, Takano, Ai, Kawabata, Hiroki, Sato, Kozue, Fujita, Hiromi, Ze, Chen, Plantard, Olivier, Hornok, Sandor, Gao, Shan, Barker, Dayana, Barker, Stephen C. and Nakao, Ryo (2021). Phylogenies from mitochondrial genomes of 120 species of ticks: Insights into the evolution of the families of ticks and of the genus Amblyomma. Ticks and Tick-borne Diseases, 12 (1) 101577, 1-15. doi: 10.1016/j.ttbdis.2020.101577
Xu, Xiaofeng, Bei, Jinlong, Xuan, Yibo, Chen, Jiayuan, Chen, Defu, Barker, Stephen C., Kelava, Samuel, Zhang, Xiaoai, Gao, Shan and Chen, Ze (2020). Full-length genome sequence of segmented RNA virus from ticks was obtained using small RNA sequencing data. BMC genomics, 21 (1) 641, 641. doi: 10.1186/s12864-020-07060-5
Chen, Ze, Xuan, Yibo, Liang, Guangcai, Yang, Xiaolong, Yu, Zhijun, Barker, Stephen C., Kelava, Samuel, Bu, Wenjun, Liu, Jingze and Gao, Shan (2020). Precise annotation of tick mitochondrial genomes reveals multiple copy number variation of short tandem repeats and one transposon-like element. BMC Genomics, 21 (1) 488, 488. doi: 10.1186/s12864-020-06906-2
Jin, Xiufeng, Cheng, Zhi, Wang, Bo, Yau, Tung On, Chen, Ze, Barker, Stephen C., Chen, Defu, Bu, Wenjun, Sun, Daqing and Gao, Shan (2020). Precise annotation of human, chimpanzee, rhesus macaque and mouse mitochondrial genomes leads to insight into mitochondrial transcription in mammals. RNA Biology, 17 (3), 395-402. doi: 10.1080/15476286.2019.1709746
Mumcuoglu, Kosta Y., Pollack, Richard J., Reed, David L., Barker, Stephen C., Gordon, Shirley, Toloza, Ariel C., Picollo, Maria I., Taylan-Ozkan, Aysegul, Chosidow, Olivier, Habedank, Birgit, Ibarra, Joanna, Meinking, Terri L. and Vander Stichele, Robert H. (2020). International recommendations for an effective control of head louse infestations. International Journal of Dermatology, 60 (3) ijd.15096, 272-280. doi: 10.1111/ijd.15096
Barker, D. and Barker, S.C. (2019). Survey of cases of tick‐paralysis and the presence of the eastern paralysis tick, Ixodes holocyclus , and the southern paralysis tick, Ixodes cornuatus , in the Greater Melbourne Area. Australian Veterinary Journal, 98 (1-2) avj.12883, 2-10. doi: 10.1111/avj.12883
Charrier, N. Pierre, Hermouet, Axelle, Hervet, Caroline, Agoulon, Albert, Barker, Stephen C., Heylen, Dieter, Toty, Céline, McCoy, Karen D., Plantard, Olivier and Rispe, Claude (2019). A transcriptome-based phylogenetic study of hard ticks (Ixodidae). Scientific Reports, 9 (1) 12923, 12923. doi: 10.1038/s41598-019-49641-9
Barker, Stephen C. and Barker, Dayana (2019). Killing clothes lice by holding infested clothes away from hosts for 10 Days to control Louseborne Relapsing Fever, Bahir Dah, Ethiopia. Emerging Infectious Diseases, 25 (2), 304-310. doi: 10.3201/eid2502.181226
Raghavan, R. K., Barker, S. C., Cobos, M. E., Barker, D., Teo, E. J. M., Foley, D. H., Nakao, R., Lawrence, K., Heath, A. C. G. and Peterson, A. T. (2019). Potential spatial distribution of the newly introduced long-horned tick, Haemaphysalis longicornis in North America. Scientific Reports, 9 (1) 498, 498. doi: 10.1038/s41598-018-37205-2
Diop, Awa, Barker, Stephen C., Eberhard, Mey, Barker, Dayana, Nguyen, Thi Tien , Di Pinto, Fabrizio, Raoldt, Didier and Mediannikov, Oleg (2018). Rickettsia fournieri sp. nov., a novel spotted fever group rickettsia from Argas lagenoplastis ticks in Australia. International Journal of Systematic and Evolutionary Microbiology, 68 (12) 003057, 3781-3784. doi: 10.1099/ijsem.0.003057
Barker, Stephen C. and Barker, Dayana (2018). Ticks in Australia: endemics; exotics; which ticks bite humans?. Microbiology Australia, 39 (4), 194-199. doi: 10.1071/MA18062
Barker, Stephen C. and Burger, Thomas D. (2018). Two new genera of hard ticks, Robertsicus n. gen. and Archaeocroton n. gen., and the solution to the mystery of Hoogstraal's and Kaufman's "primitive" tick from the Carpathian Mountains. Zootaxa, 4500 (4), 543-552. doi: 10.11646/zootaxa.4500.4.4
O'Brien, Caitlin A., Hall-Mendelin, Sonja, Hobson-Peters, Jody, Deliyannis, Georgia, Allen, Andy, Lew-Tabor, Ala, Rodriguez-Valle, Manuel, Barker, Dayana, Barker, Stephen C. and Hall, Roy A. (2018). Discovery of a novel iflavirus sequence in the eastern paralysis tick Ixodes holocyclus. Archives of Virology, 163 (9), 1-7. doi: 10.1007/s00705-018-3868-9
Shao, Renfu, Li, Hu, Barker, Stephen C. and Song, Simon (2017). The mitochondrial genome of the guanaco louse, Microthoracius praelongiceps: insights into the ancestral mitochondrial karyotype of sucking lice (Anoplura, Insecta). Genome Biology and Evolution, 9 (2), 431-445. doi: 10.1093/gbe/evx007
Bowles, Vernon M., Yoon, Kyong Sup, Barker, Stephen C., Tran, Christopher, Rhodes, Christopher and Clark, Marshall J. (2016). Ovicidal Efficacy of Abametapir Against Eggs of Human Head and Body Lice (Anoplura: Pediculidae).. Journal Of Medical Entomology, 54 (1), 167-172. doi: 10.1093/jme/tjw132
Drali, Rezak, Abi-Rached, Laurent, Boutellis, Amina, Djossou, Félix, Barker, Stephen C. and Raoult, Didier (2016). Host switching of human lice to new world monkeys in South America. Infection, Genetics and Evolution, 39, 225-231. doi: 10.1016/j.meegid.2016.02.008
Gulia-Nuss, Monika, Nuss, Andrew B., Meyer, Jason M., Sonenshine, Daniel E., Roe, R. Michael, Waterhouse, Robert M., Sattelle, David B., de la Fuente, Jose, Ribeiro, Jose M., Megy, Karine, Thimmapuram, Jyothi, Miller, Jason R., Walenz, Brian P., Koren, Sergey, Hostetler, Jessica B., Thiagarajan, Mathangi, Joardar, Vinita S., Hannick, Linda I., Bidwell, Shelby, Hammond, Martin P., Young, Sarah, Zeng, Qiandong, Abrudan, Jenica L., Almeida, Francisca C., Ayllon, Nieves, Bhide, Ketaki, Bissinger, Brooke W., Bonzon-Kulichenko, Elena, Buckingham, Steven D. ... Hill, Catherine A. (2016). Genomic insights into the Ixodes scapularis tick vector of Lyme disease. Nature Communications, 7 (1) 10507, 10507.1-10507.13. doi: 10.1038/ncomms10507
Shao, Renfu, Barker, Stephen C., Li, Hu, Song, Simon, Poudel, Shreekanta and Su, Yuan (2015). Fragmented mitochondrial genomes in two suborders of parasitic lice of eutherian mammals (Anoplura and Rhynchophthirina, Insecta). Scientific Reports, 5 (1) 17389, 17389.1-17389.11. doi: 10.1038/srep17389
Herd, Kate E., Barker, Stephen C. and Shao, Renfu (2015). The mitochondrial genome of the chimpanzee louse, Pediculus schaeffi: insights into the process of mitochondrial genome fragmentation in the blood-sucking lice of great apes. BMC Genomics, 16 (661) 661, 1-8. doi: 10.1186/s12864-015-1843-3
Xiong, H., Barker, S. C., Burger, T. D., Raoult, D. and Shao, R. (2015). Erratum: heteroplasmy in the mitochondrial genomes of human lice and ticks revealed by high throughput sequencing (The Plos One Staff (2013) 8:9 (e73329) DOI: 10.1371/journal.pone.0073329). PLoS ONE, 10 (4) e0123492, e0123492. doi: 10.1371/journal.pone.0123492
Xiong, H., Campelo, D., Boutellis, A., Raoult, D., Alem, M., Ali, J., Bilcha, K., Shao, R., Pollack, R. J. and Barker, S. C. (2014). SNPs in entire mitochondrial genome sequences (≈15.4 kb) and cox1 sequences (≈486 bp) resolve body and head lice from doubly infected people from Ethiopia, China, Nepal, and Iran but not France. Journal of Medical Entomology, 51 (6), 1199-1207. doi: 10.1603/ME14001
Barker, Stephen C., Walker, Alan R. and Campelo, Dayana (2014). A list of the 70 species of Australian ticks; diagnostic guides to and species accounts of Ixodes holocyclus (paralysis tick), Ixodes cornuatus (southern paralysis tick) and Rhipicephalus australis (Australian cattle tick); and consideration of the place. International Journal for Parasitology, 44 (12), 941-953. doi: 10.1016/j.ijpara.2014.08.008
Dong, Wen-Ge, Song, Simon, Guo, Xian-Guo, Jin, Dao-Chao, Yang, Qianqian, Barker, Stephen C. and Shao, Renfu (2014). Fragmented mitochondrial genomes are present in both major clades of the blood-sucking lice (suborder Anoplura): evidence from two Hoplopleura rodent lice (family Hoplopleuridae). BMC Genomics, 15 (1) 751, 751.1-751.13. doi: 10.1186/1471-2164-15-751
Xiong, H., Campelo, D., Pollack, R. J., Raoult, D., Shao, R., Alem, M., Ali, J., Bilcha, K. and Barker, S. C. (2014). Second-generation sequencing of entire mitochondrial coding-regions (~15.4kb) holds promise for study of the phylogeny and taxonomy of human body lice and head lice. Medical and Veterinary Entomology, 28 (S1), 40-50. doi: 10.1111/mve.12076
Burger, Thomas D., Shao, Renfu and Barker, Stephen C. (2014). Phylogenetic analysis of mitochondrial genome sequences indicates that the cattle tick, Rhipicephalus (Boophilus) microplus, contains a cryptic species. Molecular Phylogenetics and Evolution, 76 (1), 241-253. doi: 10.1016/j.ympev.2014.03.017
Barker, Stephen C. and Walker, Alan R. (2014). Ticks of Australia: the species that infest domestic animals and humans. Zootaxa, 3816 (1), 1-144. doi: 10.11646/zootaxa.3816.1.1
Sangaré, Abdoul Karim, Boutellis, Amina, Drali, Rezak, Socolovschi, Cristina, Barker, Stephen C., Diatta, Georges, Rogier, Christophe, Olive, Marie-Marie, Doumbo, Ogobara K. and Raoult, Didier (2014). Detection of Bartonella quintana in African body and head lice. American Journal of Tropical Medicine and Hygiene, 91 (2), 294-301. doi: 10.4269/ajtmh.13-0707
Song, Simon D., Barker, Stephen C. and Shao, Renfu (2014). Variation in mitochondrial minichromosome composition between blood-sucking lice of the genus Haematopinus that infest horses and pigs. Parasites and Vectors, 7 (1) 144. doi: 10.1186/1756-3305-7-144
Burger, Thomas D., Shao, Renfu, Labruna, Marcelo B. and Barker, Stephen C. (2013). Molecular phylogeny of soft ticks (Ixodida: Argasidae) inferred from mitochondrial genome and nuclear rRNA sequences. Ticks and Tick-borne Diseases, 5 (2), 195-207. doi: 10.1016/j.ttbdis.2013.10.009
Xiong, Haoyu, Barker, Stephen C., Burger, Thomas D., Raoult, Didier and Shao, Renfu (2013). Heteroplasmy in the mitochondrial genomes of human lice and ticks revealed by high throughput sequencing. PLoS One, 8 (9) e73329, e73329.1-e73329.9. doi: 10.1371/journal.pone.0073329
Jiang, Haowei, Barker, Stephen C. and Shao, Renfu (2013). Substantial variation in the extent of mitochondrial genome fragmentation among the blood-sucking lice of mammals. Genome Biology and Evolution, 5 (7), 1298-1308. doi: 10.1093/gbe/evt094
Burger, Thomas D., Shao, Renfu and Barker, Stephen C. (2013). Phylogenetic analysis of the mitochondrial genomes and nuclear rRNA genes of ticks reveals a deep phylogenetic structure within the genus Haemaphysalis and further elucidates the polyphyly of the genus Amblyomma with respect to Amblyomma sphenodonti and A. Ticks and Tick-borne Diseases, 4 (4), 265-274. doi: 10.1016/j.ttbdis.2013.02.002
Burgess, Ian F., Barker, Stephen C. and Mumcuoglu, Kosta Y. (2013). Topical ivermectin lotion for head lice. New England Journal of Medicine, 368 (10), 966-967. doi: 10.1056/NEJMc1215548
Boutellis, Amina, Mediannikov, Oleg, Bilcha, Kassahun Desalegn, Ali, Jemal, Campelo, Dayana, Barker, Stephen C. and Raoult, Didier (2013). Borrelia recurrentis in head lice, Ethiopia. Emerging Infectious Diseases, 19 (5), 796-798. doi: 10.3201/eid1905.121480
Elbir, Haytham, Henry, Mireille, Diatta, Georges, Mediannikov, Oleg, Sokhna, Cheikh, Tall, Adama, Socolovschi, Cristina, Cutler, Sally J., Bilcha, Kassahum D., Ali, Jemal, Campelo, Dayana, Barker, Steven C., Raoult, Didier and Drancourt, Michel (2013). Multiplex Real-Time PCR Diagnostic of Relapsing Fevers in Africa. PLoS Neglected Tropical Diseases, 7 (1) e2042, e2042.1-e2042.5. doi: 10.1371/journal.pntd.0002042
Burger, Thomas D., Shao, Renfu, Beati, Lorebza, Miller, Hilary and Barker, Stephen C. (2012). Phylogenetic analysis of ticks (Acari: Ixodida) using mitochondrial genomes and nuclear rRNA genes indicates that the genus Amblyomma is polyphyletic. Molecular Phylogenetics and Evolution, 64 (1), 45-55. doi: 10.1016/j.ympev.2012.03.004
Barker, Stephen C., Burgess, Ian, Meinking, Terri L. and Mumcuoglu, Kostas Y. (2012). International guidelines for clinical trials with pediculicides. International Journal of Dermatology, 51 (7), 853-858. doi: 10.1111/j.1365-4632.2011.05446.x
Haitham, Elbir, Gimenez, Gregory, Sokhna, Cheikh, Bilcha, Kassahun Desalegn, Ali, Jemal, Barker, Stephen C., Cutler, Sally J., Raoult, Didier and Drancourt, Michel (2012). Multispacer sequence typing relapsing fever Borreliae in Africa. PLoS Neglected Tropical Diseases, 6 (6) e1652, e1652.1-e1652.6. doi: 10.1371/journal.pntd.0001652
Kelers, K., Barker, S. C. and Song, S. D. (2012). Identification of Ixodes holocyclus by DNA sequencing: Application for suspected tick envenomation in a dog living outside an enzootic area. Australian Veterinary Practitioner, 42 (2), 240-242.
Wei, Dan-Dan, Shao, Renfu, Yuan, Ming-Long, Dou, Wei, Barker, Stephen C. and Wang, Jin-Jun (2012). The multipartite mitochondrial genome of Liposcelis bostrychophila: Insights into the evolution of mitochondrial genomes in bilateral animals. PLoS One, 7 (3) e33973, e33973.1-e33973.12. doi: 10.1371/journal.pone.0033973
Herd, Kate, Barker, Stephen C. and Shao, Renfu (2012). High-level of heteroplasmy in the mitochondrial Cox1-minichromosome of the human body louse, Pediculus humanus, and the human head louse, Pediculus capitis. The Open Genomics Journal, 5 (1), 14-17. doi: 10.2174/1875693X01205010014
Shao, Renfu, Zhu, Xing-Quan, Barker, Stephen C. and Herd, Kate (2012). Evolution of extensively fragmented mitochondrial genomes in the lice of humans. Genome Biology and Evolution, 4 (11), 1088-1101. doi: 10.1093/gbe/evs088
Barker, Stephen C. and Altman, Phillip M. (2011). An ex vivo, assessor blind, randomised, parallel group, comparative efficacy trial of the ovicidal activity of three pediculicides after a single application - melaleuca oil and lavender oil, eucalyptus oil and lemon tea tree oil, and a “suffocation”. BMC Dermatology, 11 (1) 14, 14-20. doi: 10.1186/1471-5945-11-14
Song, Simon, Shao, Renfu, Atwell, Rick, Barker, Stephen and Vankan, Dianne (2011). Phylogenetic and phylogeographic relationships in Ixodes holocyclus and Ixodes cornuatus (Acari: Ixodidae) inferred from COX1 and ITS2 sequences. International Journal for Parasitology, 41 (8), 871-880. doi: 10.1016/j.ijpara.2011.03.008
Shao, RF and Barker, SC (2011). Chimeric mitochondrial minichromosomes of the human body louse, Pediculus humanus: Evidence for homologous and non-homologous recombination. Gene, 473 (1), 36-43. doi: 10.1016/j.gene.2010.11.002
Barker, Stephen C. and Altman, Phillip M. (2010). A randomised, assessor blind, parallel group comparative efficacy trial of three products for the treatment of head lice - melalueca oil and lavender oil, pyrethrins and piperonyl butoxide, and a "suffocation" product. BMC Dermatology, 10 (1) 6, 6-1-6-7. doi: 10.1186/1471-5945-10-6
Guglielmone, AA, Robbins, RG, Apanaskevich, DA, Petney, TN, Estrada-Pena, A, Horak, IG, Shao, RF and Barker, SC (2010). The Argasidae, Ixodidae and Nuttalliellidae (Acari: Ixodida) of the world: A list of valid species names. Zootaxa, 2528 (2528), 1-28. doi: 10.11646/zootaxa.2528.1.1
Kirkness, EF, Haas, BJ, Sun, WL, Braig, HR, Perotti, MA, Clark, JM, Lee, SH, Robertson, HM, Kennedy, RC, Elhaik, E, Gerlach, D, Kriventseva, EV, Elsik, CG, Graur, D, Hill, CA, Veenstra, JA, Walenz, B, Tubio, JMC, Ribeiro, JMC, Rozas, J, Johnston, JS, Reese, JT, Popadic, A, Tojo, M, Raoult, D, Reed, DL, Tomoyasu, Y, Krause, E, Mittapalli, O ... Pittendrigh, BR (2010). Genome sequences of the human body louse and its primary endosymbiont provide insights into the permanent parasitic lifestyle. Proceedings of the National Academy of Sciences of the United States of America, 107 (27), 12168-12173. doi: 10.1073/pnas.1003379107
Shao, Renfu, Kirkness, Ewen F. and Barker, Stephen C. (2009). The single mitochondrial chromosome typical of animals has evolved into 18 minichromosomes in the human body louse, Pediculus humanus. Genome Research, 19 (5), 904-912. doi: 10.1101/gr.083188.108
Chen, Andrew C., He, Haiqi, Temeyer, Kevin B., Jones, Shirley, Green, Peter and Barker, Stephen C. (2009). A survey of Rhipicephulus microplus populations for mutations associated with pyrethroid resistance. Journal of Economic Entomology, 102 (1), 373-380. doi: 10.1603/029.102.0148
Bowles, V. M., Young, A. R. and Barker, S. C. (2008). Metalloproteases and egg-hatching in Pediculus humanus, the body (clothes) louse of humans (Phthiraptera : Insecta). Parasitology, 135 (1), 125-130. doi: 10.1017/S0031182007003587
Miller, H., Conrad, A., Barker, S. and Daugherty, C. (2007). Distribution and phylogenetic analyses of an endangered tick, Amblyomma sphenodonti. New Zealand Journal of Zoology, 34 (2), 97-105. doi: 10.1080/03014220709510068
Mumcuoglu, K., Barker, S., Burgess, I., Combescot-Lang, C., Dalgleish, R., Larsen, K., Miller, J., Roberts, R. and Aysegul, T. (2007). International guidelines for effective control of head louse infestations. Journal of Drugs in Dermatology, 6 (4), 409-414.
Covacin, Catherine and Barker, Stephen C. (2007). Erratum: Supergroup F Wolbachia bacteria parasitise lice (Insecta: Phthiraptera) (Parasitology Research (2007) 100, (479-485) DOI: 10.1007/s00436-006-0309-6). Parasitology Research, 100 (4), 915-915. doi: 10.1007/s00436-006-0452-0
Robertson, M., Ovenden, J. and Barker, S. (2007). Identification of small juvenile scombrids from northwest tropical Australia using mitochondrial DNA cytochrome b sequences. Ichthyological Research, 54 (3), 246-252. doi: 10.1007/s10228-007-0397-z
Covacin, C. and Barker, S. (2007). Supergroup F Wolbachia bacteria parasitise lice (Insecta: Phthiraptera). Parasitology Research, 100 (3), 479-485. doi: 10.1007/s00436-006-0309-6
Shao, R. and Barker, S. C. (2007). Mitochondrial genomes of parasitic arthropods: Implications for studies of population genetics and evolution. Parasitology, 134 (2), 153-167. doi: 10.1017/S0031182006001429
Cameron, S. L., Lambkin, C. L., Barker, S. C. and Whiting, M. F. (2007). A mitochondrial genome phylogeny of Diptera: whole genome sequence data accurately resolve relationships over broad timescales with high precision. Systematic Entomology, 32 (1), 40-59. doi: 10.1111/j.1365-3113.2006.00355.x
McMeniman, C. J. and Barker, S. C. (2006). Transmission ratio distortion in the human body louse, Pediculus humanus (Insecta : Phthiraptera). Heredity, 96 (1), 63-68. doi: 10.1038/sj.hdy.6800760
Guerrero, Felix D., Nene, Vishvanath M., George, John E., Barker, Stephen C. and Willadsen, Peter (2006). Sequencing a new target genome: The Boophilus microplus (Acari : Ixodidae) genome project. Journal of Medical Entomology, 43 (1), 9-16. doi: 10.1603/0022-2585(2006)043[0009:SANTGT]2.0.CO;2
Steen, N. A., Barker, S. C. and Alewood, P. F. (2006). Proteins in the saliva of the Ixodida (ticks): Pharmacological features and biological significance. Toxicon, 47 (1), 1-20. doi: 10.1016/j.toxicon.2005.09.010
Shao, R. F., Barker, S. C., Mitani, H., Takahashi, M. and Fukunaga, M. (2006). Molecular mechanisms for the variation of mitochondrial gene content and gene arrangement among chigger mites of the genus Leptotrombidium (Acari : Acariformes). Journal of Molecular Evolution, 63 (2), 251-261. doi: 10.1007/s00239-005-0196-y
Cameron, Stephen L., Barker, Stephen C. and Whiting, Michael F. (2006). Mitochondrial genomics and the new insect order Mantophasmatodea. Molecular Phylogenetics And Evolution, 38 (1), 274-279. doi: 10.1016/j.ympev.2005.09.020
Covacin, C., Shao, R., Cameron, S. and Barker, S. C. (2006). Extraordinary number of gene rearrangements in the mitochondrial genomes of lice (Phthiraptera : Insecta). Insect Molecular Biology, 15 (1), 63-68. doi: 10.1111/j.1365-2583.2005.00608.x
Leo, Natalie P. and Barker, Stephen C. (2005). Unravelling the evolution of the head lice and body lice of humans. Parasitology Research, 98 (1), 44-47. doi: 10.1007/s00436-005-0013-y
Murrell, A. and Barker, S. C. (2005). Multiple origins of parasitism in lice: phylogenetic analysis of SSU rDNA indicates that the Phthiraptera and Psocoptera are not monophyletic. Parasitology Research, 97 (4), 274-280. doi: 10.1007/s00436-005-1413-8
Barker, Stephen and Dowe, Phil (2005). Endurance is paradoxical. Analysis, 65 (285), 69-74. doi: 10.1111/j.1467-8284.2005.00526.x
Shao, Renfu, Barker, Stephen C., Mitani, Harumi, Aoki, Yayoi and Fukunaga, Masahito (2005). Evolution of duplicate control regions in the mitochondrial genomes of metazoa: A case study with Australasian Ixodes ticks. Molecular Biology and Evolution, 22 (3), 620-629. doi: 10.1093/molbev/msi047
Leo, N. P., Hughes, J. M., Yang, X., Poudel, S. K. S., Brogdon, W. G. and Barker, S. C. (2005). The head and body lice of humans are genetically distinct (Insecta : Phthiraptera, Pediculidae): evidence from double infestations. Heredity, 95 (1), 34-40. doi: 10.1038/sj.hdy.6800663
Shao, R. F., Mitani, H., Barker, S. C., Takahashi, M. and Fukunaga, M. (2005). Novel mitochondrial gene content and gene arrangement indicate illegitimate inter-mtDNA recombination in the chigger mite, Leptotrombidium pallidum. Journal of Molecular Evolution, 60 (6), 764-773. doi: 10.1007/s00239-004-0226-1
Murrell, Anna, Dobson, Susan J., Walter, David E., Campbell, Nick J. H., Shao, Renfu and Barker, Stephen C. (2005). Relationships among the three major lineages of the Acari (Arthropoda : Arachnida) inferred from small subunit rRNA: Paraphyly of the parasitiformes with respect to the opilioacariformes and relative rates of nucleotide substitution. Invertebrate Systematics, 19 (5), 383-389. doi: 10.1071/IS05027
Shao, R., Aoki, Y., Mitani, H., Tabuchi, N., Barker, S. C. and Fukunaga, M. (2004). The mitochondrial genomes of soft ticks have an arrangement of genes that has remained unchanged for over 400 million years. Insect Molecular Biology, 13 (3), 219-224. doi: 10.1111/j.0962-1075.2004.00447.x
Poudel, S. K. S. and Barker, S. C. (2004). Infestation of people with lice in Kathmandu and Pokhara, Nepal. Medical And Veterinary Entomology, 18 (2), 212-213. doi: 10.1111/j.0269-283X.2004.00494.x
Barker, S. C and Murrell, A. (2004). Systematics and evolution of ticks with a list of valid genus and species names. Parasitology, 129 (SUPPL.), S15-S36. doi: 10.1017/S0031182004005207
Cameron, S. L., Miller, K. B., DHaese, C. A., Whiting, M. F. and Barker, S. C. (2004). Mitochondrial genome data alone are not enough to unambiguously resolve the relationships of Entognatha, Insecta and Crustacea sensu lato (Arthropoda). Cladistics, 20 (6), 534-557. doi: 10.1111/j.1096-0031.2004.00040.x
Murrell, Anna, Campbell, Nick J. H. and Barker, Stephen C. (2003). The value of idiosyncratic markers and changes to conserved tRNA sequences from the mitochondrial genome of hard ticks (Acari: Ixodida: Ixodidae) for phylogenetic inference. Systematic Biology, 52 (3), 296-310. doi: 10.1080/10635150309325
Murrell, Anna, Dobson, Susan J., Yang, Xiaoye, Lacey, Ernest and Barker, Stephen C. (2003). A survey of bacterial diversity in ticks, lice and fleas from Australia. Parasitology Research, 89 (4), 326-334. doi: 10.1007/s00436-002-0722-4
Shao, Renfu and Barker, Stephen C. (2003). The highly rearranged mitochondrial genome of the plague thrips, Thrips imaginis (Insecta : thysanoptera): Convergence of two novel gene boundaries and an extraordinary arrangement of rRNA genes. Molecular Biology And Evolution, 20 (3), 362-370. doi: 10.1093/molbev/msg045
Robinson, D., Leo, N., Prociv, P. and Barker, S. C. (2003). Potential role of head lice, Pediculus humanus capitis, as vectors of Rickettsia prowazekii. Parasitology Research, 90 (3), 209-211. doi: 10.1007/s00436-003-0842-5
Shao, Renfu, Dowton, Mark, Murrell, Anna and Barker, Stephen C. (2003). Rates of gene rearrangement and nucleotide substitution are correlated in the mitochondrial genomes of insects. Molecular Biology and Evolution, 20 (10), 1612-1619. doi: 10.1093/molbev/msg176
Murrell, A. and Barker, S. C. (2003). Synonymy of Boophilus Curtice, 1891 with Rhipicephalus Koch, 1844 (Acari : Ixodidae). Systematic Parasitology, 56 (3), 169-172. doi: 10.1023/B:SYPA.0000003802.36517.a0
Barker, S. C. (2003). The Australian paralysis may be the missing link tick in the transmission of Hendra virus from bats to horses to humans. Medical Hypotheses, 60 (4), 481-483. doi: 10.1016/S0306-9877(02)00377-8
Barker, S. C., Whiting, M., Johnson, K. P. and Murrell, A. (2003). Phylogeny of the lice (Insecta, Phthiraptera) inferred from small subunit rRNA. Zoologica Scripta, 32 (5), 407-414. doi: 10.1046/j.1463-6409.2003.00120.x
Murrell, Anna, Campbell, Nick J. H. and Barker, Stephen C. (2003). The value of idiosyncratic markers and changes to conserved tRNA sequences from the mitochondrial genome of hard ticks (Acari: Ixodida: Ixodidae) for phylogenetic inference. Systematic Biology, 52 (3), 296-310. doi: 10.1080/10635150390196957
Hunter, J. A. and Barker, S. C. (2003). Susceptibility of head lice (Pediculus humanus capitis) to pediculicides in Australia. Parasitology Research, 90 (6), 476-478. doi: 10.1007/s00436-003-0881-y
Leo, N. P. and Barker, S. C. (2002). Intragenomic variation in ITS2 rDNA in the louse of humans, Pediculus humanus: ITS2 is not a suitable marker for population studies in this species. Insect Molecular Biology, 11 (6), 651-657. doi: 10.1046/j.1365-2583.2002.00367.x
Barker, Stephen C. and Murrell, Anna (2002). Phylogeny, evolution and historical zoogeography of ticks: a review of recent progress. Experimental And Applied Acarology, 28 (1-4: Ticks and Tick-Borne Pathogens. Proceedings of the 4th International Conference on Ticks and Tick-Borne Pathogens), 55-68. doi: 10.1023/A:1025333830086
Hlinka, O., Murrell, A. and Barker, S. C. (2002). Evolution of the secondary structure of the rRNA internal transcribed spacer 2 (ITS2) in hard ticks (Ixodidae, Arthropoda). Heredity, 88 (4), 275-279. doi: 10.1038/sj/hdy/6800040
Baxter, G. D. and Barker, S. C. (2002). Analysis of the sequence and expression of a second putative acetylcholinesterase cDNA from organophosphate-susceptible and organophosphate-resistant cattle ticks. Insect Biochemistry And Molecular Biology, 32 (7), 815-820. doi: 10.1016/S0965-1748(01)00168-0
Murrell, A., Kleeman, S. N., Barker, S. C. and Lester, R. J. G. (2002). Synonymy of Perkinsus olseni Lester & Davis, 1981 and Perkinsus atlanticus Azevedo, 1989 and an update on the phylogenetic position of the genus Perkinsus. Bulletin of The European Association of Fish Pathologists, 22 (4), 258-265.
Klompen, H., Dobson, S. J. and Barker, S. C. (2002). A new subfamily, Bothriocrotoninae n. subfam., for the genus Bothriocroton Keirans, King & Sharrad, 1994 status amend. (Ixodida : Ixodidae), and the synonymy of Aponomma Neumann, 1899 with Amblyomma Koch, 1844. Systematic Parasitology, 53 (2), 101-107. doi: 10.1023/A:1020466007722
Leo, N. P., Campbell, N. J. H., Yang, X., Mumcuoglu, K. and Barker, S. C. (2002). Evidence from mitochondrial DNA that head lice and body lice of humans (Phthiraptera : Pediculidae) are conspecific. Journal of Medical Entomology, 39 (4), 662-666. doi: 10.1603/0022-2585-39.4.662
Skerratt, L. F., Campbell, N. J. H., Murrell, A., Walton, S., Kemp, D. and Barker, S. C. (2002). The mitochondrial 12S gene is a suitable marker of populations of Sarcoptes scabiei from wombats, dogs and humans in Australia. Parasitology Research, 88 (4), 376-379. doi: 10.1007/s00436-001-0556-5
Shaw, M., Murrell, A. and Barker, S. C. (2002). Low intraspecific variation in the rRNA internal transcribed spacer 2 (ITS2) of the Australian paralysis tick, Ixodes holocyclus. Parasitology Research, 88 (3), 247-252. doi: 10.1007/s00436-001-0533-z
Campbell, Nick J. H., Sturm, Richard A. and Barker, Stephen C. (2001). Large mitochondrial repeats multiplied during the polymerase chain reaction. Molecular Ecology Notes, 1 (4), 336-340. doi: 10.1046/j.1471-8278 .2001.00093.x
Shao, R., Campbell, N. J.H., Schmidt, E. R. and Barker, S. C. (2001). Increased rate of gene rearrangement in the mitochondrial genomes of three orders of hemipteroid insects [2]. Molecular Biology and Evolution, 18 (9), 1828-1832. doi: 10.1093/oxfordjournals.molbev.a003970
Shao, R. F., Campbell, N. J. H., Schmidt, E. R. and Barker, S. C. (2001). Increased rate of gene rearrangement in the mitochondrial genomes of three orders of hemipteroid insects. Molecular Biology and Evolution, 18 (9), 1828-1832.
Murrell, A., Campell, N. J. H. and Barker, S. C. (2001). A total-evidence phylogeny of ticks provides insights into the evolution of life cycles and biogeography. Molecular Phylogenetics And Evolution, 21 (2), 244-258. doi: 10.1006/mpev.2001.1018
Murrell, A., Campbell, N. J. H. and Barker, S. C. (2001). Recurrent gains and losses of large (84-109 bp) repeats in the rDNA internal transcribed spacer 2 (ITS2) of rhipicephaline ticks. Insect Molecular Biology, 10 (6), 587-596. doi: 10.1046/j.0962-1075.2001.00298.x
Lester, R. J. G., Thompson, C., Moss, H. and Barker, S. C. (2001). Movement and stock structure of narrow-barred Spanish mackerel as indicated by parasites. Journal of Fish Biology, 59 (4), 833-842. doi: 10.1111/j.1095-8649.2001.tb00154.x
Shao, R., Campbell, N. J. H. and Barker, S. C. (2001). Numerous gene rearrangements in the mitochondrial genome of the wallaby louse, Heterodoxus macropus (Phthiraptera). Molecular Biology And Evolution, 18 (5), 858-865.
Shao, Renfu, Campbell, Nick J. H. and Barker, Stephen C. (2001). Numerous gene rearrangements in the mitochondrial genome of the wallaby louse, Heterodoxus macropus (Phthiraptera). Molecular Biology and Evolution, 18 (5), 858-865. doi: 10.1093/oxfordjournals.molbev.a003867
Chigagure, N., Baxter, G. D. and Barker, S. C. (2000). Microsatellite loci of the cattle tick Boophilus microplus (Acari:Ixodidae). Experimental and Applied Acarology, 24 (12), 951-956. doi: 10.1023/A:1010732024895
Murrell, A, Campbell, NJH and Barker, SC (2000). Phylogenetic analyses of the rhipicephaline ticks indicate that the genus Rhipicephalus is paraphyletic. Molecular Phylogenetics and Evolution, 16 (1), 1-7. doi: 10.1006/mpev.2000.0762
Baxter, Glenn D. and Barker, Stephen C. (1999). Comparison of acetylcholinesterase genes from cattle ticks. International Journal For Parasitology, 29 (11), 1765-1774. doi: 10.1016/S0020-7519(99)00136-8
Campbell, N J and Barker, S C (1999). The novel mitochondrial gene arrangement of the cattle tick, Boophilus microplus: fivefold tandem repetition of a coding region. Molecular biology and evolution, 16 (6), 732-40. doi: 10.1093/oxfordjournals.molbev.a026158
Murrell, Anna, Campbell, Nicholas J. H. and Barker, Stephen C. (1999). Re: Mitochondrial 12S rDNA Indicates That the Rhipicephalinae (Acari: Ixodida: Ixodidae) Is Paraphyletic (Letter to the Editor). Molecular Phylogenetics and Evolution, 12 (1), 83-86. doi: 10.1006/mpev.1998.0595
Crampton, A. L., Green, P., Baxter, G. D. and Barker, S. C. (1999). Monooxygenases play only a minor role in resistance to synthetic pyrethroids in the cattle tick, Boophilus microplus. Experimental and Applied Acarology, 23 (11), 897-905. doi: 10.1023/A:1006245800759
Baxter, G. D. and Barker, S. C. (1999). Isolation of a cDNA for an octopamine-like, G-protein coupled receptor from the cattle tick, Boophilus microplus. Insect Biochemistry and Molecular Biology, 29 (5), 461-467. doi: 10.1016/S0965-1748(99)00023-5
Hall, Kathryn A., Cribb, Thomas H. and Barker, Stephen C. (1999). V4 region of small subunit rDNA indicates polyphyly of the Fellodistomidae (Digenea) which is supported by morphology and life-cycle data. Systematic Parasitology, 43 (2), 81-92. doi: 10.1023/A:1006113721899
Dobson, S. J. and Barker, S.C. (1999). Phylogeny of the hard ticks (Ixodidae) inferred from 18S rRNA indicates that the genus Aponomma is paraphyletic. Molecular Phylogenetics and Evolution, 11 (2), 288-295. doi: 10.1006/mpev.1998.0565
Crampton, A. L., Baxter, G. D. and Barker, S. C. (1999). Identification and characterisation of a cytochrome P450 gene and processed pseudogene from an arachnid: the cattle tick, Boophilus microplus. Insect Biochemistry and Molecular Biology, 29 (4), 377-384. doi: 10.1016/S0965-1748(99)00013-2
Crampton, AL, Baxter, CD and Barker, SC (1999). A new family of cytochrome P450 genes (CYP41) from the cattle tick, Boophilus microplus. Insect Biochemistry and Molecular Biology, 29 (9), 829-834. doi: 10.1016/S0965-1748(99)00061-2
Baxter, GD, Green, P, Stuttgen, M and Barker, SC (1999). Detecting resistance to organophosphates and carbamates in the Cattle Tick Boophilus microplus, with a propoxur-based biochemical test. Experimental and Applied Acarology, 23 (11), 907-914. doi: 10.1023/A:1006364816302
Campbell, N. J. H. and Barker, S. C. (1999). The novel mitochondrial gene arrangement of the cattle tick, Boophilus microplus: Fivefold tandem repetition of a coding region. Molecular Biology and Evolution, 16 (6), 732-740.
Campbell, NJH and Barker, SC (1998). An unprecedented major rearrangement in an arthropod mitochondrial genome. Molecular Biology And Evolution, 15 (12), 1786-1787. doi: 10.1093/oxfordjournals.molbev.a025904
Anderson, GR and Barker, SC (1998). Inference of phylogeny and taxonomy within the Didymozoidae (Digenea) from the second internal transcribed spacer (ITS2) of ribosomal DNA. Systematic Parasitology, 41 (2), 87-94. doi: 10.1023/A:1006024128098
Barker, SC (1998). Distinguishing species and populations of Rhipicephaline ticks with its 2 ribosomal RNA. Journal of Parasitology, 84 (5), 887-892. doi: 10.2307/3284614
Baxter, GD and Barker, SC (1998). Acetylcholinesterase cDNA of the cattle tick, Boophilus microplus: characterisation and role in organophosphate resistance. Insect Biochemistry And Molecular Biology, 28 (8), 581-589. doi: 10.1016/S0965-1748(98)00034-4
Barker, S, Smith, R and Separovic, F (1998). NMR structure of receptor linked gramicidin channels.. Biophysical Journal, 74 (2), A248-A248.
Blair, D, Bray, RA and Barker, SC (1998). Molecules and morphology in phylogenetic studies of the Hemiuroidea (Digenea : Trematoda : Platyhelminthes). Molecular Phylogenetics And Evolution, 9 (1), 15-25. doi: 10.1006/mpev.1997.0437
Crampton, AL, Miller, C, Baxter, GD and Barker, SC (1998). Expressed sequenced tags and new genes from the cattle tick, Boophilus microplus. Experimental And Applied Acarology, 22 (3), 177-186. doi: 10.1023/A:1006058113409
Bray, RA, Cribb, TH and Barker, SC (1997). Postlepidapedon Zdzitowiecki, 1993 and Gibsonivermis n g (Digenea: Lepocreadiidae) from fishes of the southern Great Barrier Reef, Australia, and their relationship to Intusatrium Durio & Manter, 1968. Systematic Parasitology, 36 (2), 143-155. doi: 10.1023/A:1005729703302
Jones, SH, Lew, AE, Jorgensen, WK and Barker, SC (1997). Babesia bovis: Genome size, number of chromosomes and telomeric probe hybridisation. International Journal For Parasitology, 27 (12), 1569-1573. doi: 10.1016/S0020-7519(97)00099-4
Bray, Rodney A., Cribb, Thomas H. and Barker, Stephen C. (1996). Four species of Lepidapedoides Yamaguti, 1970 (Digenea: Lepocreadiidae) from fishes of the southern Great Barrier Reef, with a tabulation of host-parasite data on the group. Systematic Parasitology, 34 (3), 179-195. doi: 10.1007/BF00009386
Barker, Stephen C. and Blair, David (1996). Molecular phylogeny of Schistosoma species supports traditional groupings within the genus. Journal of Parasitology, 82 (2), 292-298. doi: 10.2307/3284163
Bray, R.A., Cribb, T.H. and Barker, S.C. (1996). Cableia pudica n sp (Digenea:acanthocolpidae) from monacanthid fishes of the Southern Great Barrier Reef, Australia. Parasite, 3 (1), 49-54. doi: 10.1051/parasite/1996031049
Bray, R.A., Cribb, T.H. and Barker, S.C. (1996). Diploproctodaeinae (Digenea: Lepocreadiidae) from the coastal fishes of Queensland, Australia, with a review of the subfamily. Journal of Natural History, 30 (3), 317-366. doi: 10.1080/00222939600770191
Cribb, T.H., Bray, R.A., Barker, S.C. and Adlard, R.D. (1996). Taxonomy and biology of Mitrotrema anthostomatum Manter, 1963 (Digenea:Cryptogonimidae) from fishes of the southern Great Barrier Reef, Australia. Journal of the Helminthological Society of Washington, 63 (1), 110-115.
Crampton, A., McKay, I. and Barker, S. C. (1996). Phylogeny of ticks (Ixodida) inferred from nuclear ribosomal DNA. International Journal for Parasitology, 26 (5), 511-517. doi: 10.1016/0020-7519(96)89379-9
Barker S.C. (1996). Lice, cospeciation and parasitism. International Journal for Parasitology, 26 (2), 219-222. doi: 10.1016/0020-7519(95)00114-X
Cribb, T. H., Barker, S. C. and Beuret, J. (1995). Taxonomy of Mesostephanus Lutz, 1935 (Digenea, Cyathocotylidae) in some Australian Water Birds. Systematic Parasitology, 32 (3), 193-204. doi: 10.1007/BF00008828
Blackall, Linda L., Barker, Stephen C. and Hugenholtz, Philip (1995). Phylogenetic Analysis and Taxonomic History of Nocardia pinensis and Nocardia amarae. Systematic and Applied Microbiology, 17 (4), 519-525. doi: 10.1016/S0723-2020(11)80071-8
Barker, Stephen C., Cribb, Thomas H., Bray, Rodney A. and Adlard, Robert D. (1994). Host-parasite associations on a coral reef: Pomacentrid fishes and digenean trematodes. International Journal for Parasitology, 24 (5), 643-647. doi: 10.1016/0020-7519(94)90116-3
Cribb, T. H., Bray, R. A. and Barker, S. C. (1994). Bivesiculidae and Haplosplanchnidae (Digenea) From Fishes of the Southern Great-Barrier-Reef, Australia. Systematic Parasitology, 28 (2), 81-97. doi: 10.1007/BF00009589
Bray R.A., Cribb T.H. and Barker S.C. (1994). Fellodistomidae and lepocreadiidae (Platyhelminthes: Digenea) from chaetodontid fishes (perciformes) from heron island, southern great barrier reef, queensland, australia. Invertebrate Systematics, 8 (3), 545-581. doi: 10.1071/IT9940545
S.C.Barker S.C.BarkerStephen C.S.C.Barker S.BarkerStephen C.https://api.elsevier.com/content/author/author_id/7203040431 (1994). Phylogeny and classification, origins, and evolution of host associations of lice. International Journal for Parasitology, 24 (8), 1285-1291. doi: 10.1016/0020-7519(94)90195-3
Bray, Rodney A., Cribb, Thomas H. and Barker, Stephen C. (1993). The Lepocreadiidae (Digenea) of Pomacentrid fishes (Perciformes) from Heron Island, Queensland, Australia. Systematic Parasitology, 26 (3), 189-200. doi: 10.1007/BF00009726
Barker, S. C., Blair, D., Garrett, A. R. and Cribb, T. H. (1993). Utility of the D1 domain of nuclear 28S ribosomal-Rna for phylogenetic inference in the digenea. Systematic Parasitology, 26 (3), 181-188. doi: 10.1007/BF00009725
Barker, Stephen C., Bray, Rodney A. and Cribb, Thomas H. (1993). Preptetos-Cannoni N-Sp (Digenea, Lepocreadiidae) From Siganus-Lineatus (Teleostei, Siganidae) From the Southern Great-Barrier-Reef, Australia. Systematic Parasitology, 26 (2), 151-155. doi: 10.1007/BF00009223
Barker, S. C., Blair, D., Cribb, T. H. and Tonion, K. (1993). Phylogenetic position of Heronimus mollis (digenea): Evidence from 18S ribosomal RNA. International Journal for Parasitology, 23 (4), 533-536. doi: 10.1016/0020-7519(93)90043-X
Bray, Rodney A., Cribb, Thomas H. and Barker, Stephen C. (1993). Hemiuridae (Digenea) from marine fishes of the Great-Barrier-Reef, Queensland, Australia. Systematic Parasitology, 25 (1), 37-62. doi: 10.1007/BF00017000
Adlard, Robert D., Barker, Stephen C., Blair, David and Cribb, Thomas H. (1993). Comparison of the second internal transcribed spacer (Ribosomal DNA) from populations and species of fasciolidae (Digenea). International Journal for Parasitology, 23 (3), 423-425. doi: 10.1016/0020-7519(93)90022-Q
Bray, Rodney A., Cribb, Thomas H. and Barker, Stephen C. (1993). The Hemiuroidea (Digenea) of Pomacentrid fishes (Perciformes) from Heron Island, Queensland, Australia. Systematic Parasitology, 24 (3), 159-184. doi: 10.1007/BF00010530
Barker, Stephen C. and Cribb, Thomas H. (1993). Sporocysts of Mesostephanus haliasturis (DIGENEA) produce miracidia. International Journal for Parasitology, 23 (1), 137-139. doi: 10.1016/0020-7519(93)90107-A
Anderson, Glenn R. and Barker, Stephen C. (1993). Species differentiation in the didymozoidae (Digenea): restriction fragment length differences in internal transcribed spacer and 5.8S ribosomal DNA. International Journal for Parasitology, 23 (1), 133-136. doi: 10.1016/0020-7519(93)90106-9
Goggin C.L. and Barker S.C. (1993). Phylogenetic position of the genus Perkinsus (Protista, Apicomplexa) based on small subunit ribosomal RNA. Molecular and Biochemical Parasitology, 60 (1), 65-70. doi: 10.1016/0166-6851(93)90029-W
Blair, D. and Barker, S. C. (1993). Affinities of the Gyliauchenidae: Utility of the 18S rRNA gene for phylogenetic inference in the digenea (Platyhelminthes). International Journal for Parasitology, 23 (4), 527-532. doi: 10.1016/0020-7519(93)90042-W
Cribb, Thomas H., Bray, Rodney A. and Barker, Stephen C. (1992). Zoogonidae (Digenea) from southern Great Barrier Reef fishes with a description of Steganoderma (Lecithostaphylus) gibsoni n. sp.. Systematic Parasitology, 23 (1), 7-12. doi: 10.1007/BF00008002
Cribb, Thomas H., Bray, Rodney A. and Barker, Stephen C. (1992). A review of the family transversotrematidae (Trematoda: Digenea) with the description of a new genus, crusziella. Invertebrate Systematics, 6 (4), 909-935. doi: 10.1071/IT9920909
Barker, S. C., Briscoe, D. A. and Close, R, L. (1992). Phylogeny inferred from allozymes in the Heterodoxus octoseriatus group of species (Phthiraptera: Boopiidae). Australian Journal of Zoology, 40 (4), 343-353. doi: 10.1071/ZO9920411
Singleton, G. R., Spratt, D. M., Barker, S. C. and Hodgson, P. F. (1991). The geographic distribution and host range of Capillaria hepatica (Bancroft) (Nematoda) in Australia. International Journal for Parasitology, 21 (8), 945-957. doi: 10.1016/0020-7519(91)90171-3
Barker, Stephen C., Briscoe, David A., Close, Robert L. and Dallas, Peter (1991). Genetic variation in the Heterodoxys octoseriatus group (Phthiraptera): A test of price's model of parasite evolution. International Journal for Parasitology, 21 (5), 555-563. doi: 10.1016/0020-7519(91)90060-K
Barker, Stephen C., Close, Robert L. and Briscoe, David A. (1991). Genetic divergence in Heterodoxus octoseriatus (Phthiraptera). International Journal for Parasitology, 21 (4), 479-482. doi: 10.1016/0020-7519(91)90108-J
Barker, S. C. (1991). Taxonomic review of the Heterodoxus octoseriatus group (Phthiraptera: Boopiidae) from rock-wallabies with the description of three new species. Systematic Parasitology, 19 (1), 1-16. doi: 10.1007/BF00010297
Barker, S. C. (1991). Phylogeny of the Heterodoxus octoseriatus group (Phthiraptera: Boopiidae) from rock-wallabies (Marsupialia: Petrogale). Systematic Parasitology, 19 (1), 17-24. doi: 10.1007/BF00010298
Barker S.C. (1991). Evolution of host-parasite associations among species of lice and rock-wallabies: Coevolution? (J.F.A. Sprent Prize lecture, August 1990). International Journal for Parasitology, 21 (5), 497-501. doi: 10.1016/0020-7519(91)90053-A
Barker, S. C., Singleton, G. R. and Spratt, D. M. (1991). Can the nematode Capillaria hepatica regulate abundance in wild house mice ? Results of enclosure experiments in southeastern Australia. Parasitology, 103 (3), 439-449. doi: 10.1017/S0031182000059965
Barker, Stephen C. and Close, Robert L. (1990). Zoogeography and host associations of the Heterodoxus octoseriatus group and H. Ampullatus (phthiraptera: boopiidae) from rock-wallabies (marsupialia: petrogale). International Journal for Parasitology, 20 (8), 1081-1087. doi: 10.1016/0020-7519(90)90053-P
Barker, Stephen C. (1990). Behaviour and social organisation of the allied rock-wallaby petrogale assimilis, ramsay, 1877 (Marsupialia:Macropodoidea). Wildlife Research, 17 (3), 301-311. doi: 10.1071/WR9900301
Beveridge, I., Spratt, D. M., Close, R. L., Barker, S. C. and Sharman, G. B. (1989). Helminth parasites of rock-wallabies, petrogale spp. (Marsupialia), from Queensland. Wildlife Research, 16 (3), 273-287. doi: 10.1071/WR9890273

Conference Papers

Shao, Renfu, Fukunaga, Masahito and Barker, Stephen C. (2005). The mitochondrial genomes of ticks and their kin: A review plus the description of the mitochondrial genomes of Ambylomma triguttatum and Ornithodoros porcinus. 5th International Congress of Ticks and Tick Borne Diseases, Neuchatel, Switzerland, August 2005.
Cameron, S., Whiting, M. and Barker, S. (2004). Diversity and evolution of the insect mitochondrial genome. 22nd Annual Meeting of the Willi Hennig Society, New York Botan Garden, Bronx, NY, 20-24 Jul 2003. Orlando, Fl: Blackwell Publishing. doi: 10.1111/j.1096-0031.2003.00006.x
Barker, Stephen C. and Murrell, Anna (2002). Phylogeny, evolution and historical zoogeography of ticks: A review of recent progress. doi: 10.1023/A:1025333830086
Hayward, C. J., Lester, R.J., Barker, S.C., McCallum, H. I., Murrell, A. and Kleeman, S. N. (2002). Transmission of Perkinsus olseni among wild blacklip abalone in South Australia. 5th Symposium on Diseases in Asian Aquaculture, Gold Coast, November, 2002.
Hutcheson, H. J., Black IV, W. C., Klompen, J. S. H., Keirans, J. E., Norris, D. E. and Barker, S. C. (2000). Current progress in tick molecular systematics. Ticks and Tick-Borne Pathogens, High Tetsa Mountains, Slovakia, August, 1999.
Campbell, N. and Barker, S.C. (1999). Heteroplasmy and concerted evolution of tandem repeats of a coding region in the mt genome of the tick, Boophilus microplus. The Annual Scientific Meeting of the Australian Sciety for Parasitology, Yeppoon, Central Qld, 26-30 September 1999. Yeppoon, Central Qld: The Aust. Society for Parasitology.
Dobson, S. J. and Barker, S. C. (1999). Is Rickettsia prowazekii the closest relative to mitochondria. Annual Scientific Meeting Australian Society for Parasitology ASP'99, Yeppoon, Central Qld, 26-30 September 1999. Yeppoon: The Australian Society for Parasitology.
Murrell, A., Campbell, N. and Barker, S. C. (1999). Molecular evolution of the internal transcribed spacer 2 and phylogenetic relationships among species of the tick subfamily Rhipicephalinae. The Annual Scientific Meeting of the Australian Society for Parasitology, Yeppoon, Central Qld, 26-30 September 1999. Yeppoon, Central Qld: The Aust. Society for Parasitology.
Barker, S. C. (1999). Molecular basis of resistance to insecticides in arthropods, particularly ticks. Annual Scientific Meeting Australian Society for Parasitology ASP'99, Yeppoon, Central Qld, 26-30 September 1999. Yeppoon: The Australian Society for Parasitology.
Cribb, T. H., Bray, R. A., Barker, S. C. and Morgan, J. A. (1999). Radiation of faustulid trematodes in Great Barrier Reef Fishes. Australian Society for Parasitology Annual Scientific Meeting, Yepoon, Central Qld, 26-30 September 1999. Brisbane: The Aust. Society for Parasitology.

Areas of research

Molecular genetics and genomics theme