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Abstract

Background: Blood-sucking lice in the genera Pediculus and Pthirus are obligate ectoparasites of great apes. Unlike most bilateral animals, which have 37 mitochondrial (mt) genes on a single circular chromosome, the sucking lice of humans have extensively fragmented mt genomes. The head louse, ...

Author(s)
Herd, K. E.; Barker, S. C.; Shao RenFu
Publisher
BioMed Central Ltd, London, UK
Citation
BMC Genomics, 2015, 16, 661, pp (3 September 2015)
Abstract

Seventy species of ticks are known from Australia: 14 soft ticks (family Argasidae) and 56 hard ticks (family Ixodidae). Sixteen of the 70 ticks in Australia may feed on humans and domestic animals (Barker and Walker 2014). The other 54 species of ticks in Australia feed only on wild mammals,...

Author(s)
Barker, S. C.; Walker, A. R.; Campelo, D.
Publisher
Elsevier Ltd, Oxford, UK
Citation
International Journal for Parasitology, 2014, 44, 12, pp 941-953
Abstract

There has been much progress in our understanding of the phylogeny and evolution of ticks, particularly hard ticks, in the past 5 years. Indeed, a consensus about the phylogeny of the hard ticks has emerged. Our current working hypothesis for the phylogeny of ticks is quite different to the working ...

Author(s)
Barker, S. C.; Murrell, A.
Publisher
Kluwer Academic Publishers, Dordrecht, Netherlands
Citation
Experimental and Applied Acarology, 2002, 28, 1/4, pp 55-68
Abstract

The saliva of ticks (Suborder Ixodida) is critical to their survival as parasites. A tick bite should result in strong responses from the host defence systems (haemostatic, immune and inflammatory) but tick saliva appears to have evolved to counter these responses. We review current knowledge of...

Author(s)
Steen, N. A.; Barker, S. C.; Alewood, P. F.
Publisher
Elsevier, Oxford, UK
Citation
Toxicon, 2006, 47, 1, pp 1-20
Abstract

Lice are highly successful ectoparasites. Most species of mammals and birds are infested by at least 1 but up to 6 species of lice. Current opinion is that lice evolved from free-living Psocoptera (booklice, barklice and psocids). It is generally agreed that there are 4 main groups of lice:...

Author(s)
Barker, S. C.
Citation
International Journal for Parasitology, 1994, 24, 8, pp 1285-1291
Abstract

Phylogeny of, and host-parasite relationships between, lice (Heterodoxus octoseriatus group) and rock wallabies (Petrogale spp.) in eastern Australia were investigated to test models of host-parasite coevolution [see e.g. D.R. Brooks (1979) Systematic Zoology, 28: 299-307; (1988) Annual Review of...

Author(s)
Barker, S. C.
Citation
International Journal for Parasitology, 1991, 21, 5, pp 497-501
Abstract

The following investigation studied the internal transcribed spacer 2 (ITS2) in 22 species of ticks from the subfamily Rhipicephalinae. A 104-109 base pair (bp) region was imperfectly repeated in most ticks studied. Mapping the number of repeat copies onto a phylogeny from the ITS2 showed that...

Author(s)
Murrell, A.; Campbell, N. J. H.; Barker, S. C.
Publisher
Blackwell Science, Oxford, UK
Citation
Insect Molecular Biology, 2001, 10, 6, pp 587-596
Abstract

In order to examine the subfamily Rhipicephalinae phylogenetically, the 3′ end of the 12S rRNA gene was used to: (a) test monophyly of the Rhipicephalinae with respect to the Hyalomminae with a wider range of species than has been used previously; (b) test monophyly of the Hyalomminae; (c) test...

Author(s)
Murrell, A.; Campbell, N. J. H.; Barker, S. C.
Citation
Molecular Phylogenetics and Evolution, 1999, 12, 1, pp 83-86
Abstract

Sequencing was carried out across all of the gene boundaries in the mitochondrial genome of B. microplus, to determine the arrangement of its genes. The mtDNA of B. microplus has a coding region, composed of tRNAGlu and 60 bp of the 3′ end of ND1, that is repeated 5 times. B. microplus is the 1st...

Author(s)
Campbell, N. J. H.; Barker, S. C.
Citation
Molecular Biology and Evolution, 1999, 16, 6, pp 732-740
Abstract

DNA from the V4 domain of the nuclear small subunit (18S) rRNA gene of 33 hemiuroids and other representative digeneans was extracted and sequenced and, in addition to a set of morphological characters from a previous investigation, used in a phylogenetic analysis of the Hemiuroidea. Molecular and...

Author(s)
Blair, D.; Bray, R. A.; Barker, S. C.
Citation
Molecular Phylogenetics and Evolution, 1998, 9, 1, pp 15-25

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