Novel trypanosome Trypanosoma gilletti sp. (Euglenozoa: Trypanosomatidae) and the extension of the host range of Trypanosoma copemani to include the koala (Phascolarctos cinereus)

L.M. McInnes; J. Hanger; G. Simmons; S.A. Reid; U.M. Ryan

doi:10.1017/S0031182010000971

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Novel trypanosome Trypanosoma gilletti sp. (Euglenozoa: Trypanosomatidae) and the extension of the host range of Trypanosoma copemani to include the koala (Phascolarctos cinereus)

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Novel trypanosome Trypanosoma gilletti sp. (Euglenozoa: Trypanosomatidae) and the extension of the host range of Trypanosoma copemani to include the koala (Phascolarctos cinereus)

L.M. McInnes, J. Hanger, G. Simmons, S.A. Reid and U.M. Ryan

Parasitology, Vol.138(1), pp.59-70

2011

DOI: https://doi.org/10.1017/S0031182010000971

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Abstract

Trypanosoma irwini was previously described from koalas and we now report the finding of a second novel species, T. gilletti, as well as the extension of the host range of Trypanosoma copemani to include koalas. Phylogenetic analysis at the 18S rDNA and gGAPDH loci demonstrated that T. gilletti was genetically distinct with a genetic distance (±s.e.) at the 18S rDNA locus of 2·7±0·5% from T. copemani (wombat). At the gGAPDH locus, the genetic distance (±s.e.) of T. gilletti was 8·7±1·1% from T. copemani (wombat). Trypanosoma gilletti was detected using a nested trypanosome 18S rDNA PCR in 3/139 (∼2%) blood samples and in 2/29 (∼7%) spleen tissue samples from koalas whilst T. irwini was detected in 72/139 (∼52%) blood samples and T. copemani in 4/139 (∼3%) blood samples from koalas. In addition, naturally occurring mixed infections were noted in 2/139 (∼1·5%) of the koalas tested.

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Title: Novel trypanosome Trypanosoma gilletti sp. (Euglenozoa: Trypanosomatidae) and the extension of the host range of Trypanosoma copemani to include the koala (Phascolarctos cinereus)
Authors/Creators: L.M. McInnes (Author/Creator) - Murdoch University
J. Hanger (Author/Creator) - Australia Zoo
G. Simmons (Author/Creator) - The University of Queensland
S.A. Reid (Author/Creator) - Murdoch University
U.M. Ryan (Author/Creator) - Murdoch University
Publication Details: Parasitology, Vol.138(1), pp.59-70
Publisher: Cambridge University Press
Identifiers: 991005544574507891
Copyright: © Cambridge University Press 2010
Murdoch Affiliation: School of Veterinary and Biomedical Sciences
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration
Citation topics: 1 Clinical & Life Sciences; 1.261 Parasitology - Trypanosoma & Leishmania; 1.261.596 Trypanosoma Biology
Web Of Science research areas: Parasitology
ESI research areas: Microbiology