Sibling species within Macropostrongyloides baylisi (Nematoda: Strongyloidea) from macropodid marsupials

International Journal for Parasitology
I BeveridgeR H Andrews

Abstract

Macropostrongyloides baylisi from four different species or subspecies of host were analysed electrophoretically at 27 enzyme loci. The results revealed the existence of two species, one in Macropus giganteus and the other in M. robustus robustus, M.r. erubescens and M.r. parryi, that had fixed genetic differences at 33% of loci. Populations of nematodes from two subspecies of M. robustus, M.r. robustus from Queensland and M.r. erubescens from South Australia, had fixed genetic differences at two (7.4%) of 27 loci and were considered to belong to the same species. No fixed genetic differences were detected between nematodes from M. parryi and M.r. robustus. A discriminant function analysis of morphological data assigned 96% of specimens to groups defined on the basis of the host species or subspecies from which they were obtained. This separation of Ma. baylisi into host-specific groups did not, however, totally correlate with the electrophoretic data. The species of M. baylisi in M. giganteus was genetically more distinct from the sibling species in M. robustus/M. parryi than to a related but morphologically dissimilar nematode, Ma. yamagutii from M. fuliginosus. This suggests an evolutionary parallel between host and parasite...Continue Reading

References

Jun 1, 1989·Journal of Helminthology·R H AndrewsP R Baverstock
Oct 1, 1985·Journal of Wildlife Diseases·I BeveridgeR Speare
Aug 22, 1973·Journal of Theoretical Biology·M Ruse

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Citations

Dec 1, 1994·International Journal for Parasitology·M C Durette-DessetD M Spratt
Sep 1, 1996·Acta Tropica·R B GasserR Speare
Jul 10, 1998·Molecular and Biochemical Parasitology·R B GasserN B Chilton
Jun 19, 2001·International Journal for Parasitology·I Beveridge, N B Chilton
Oct 5, 2014·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Mary A ShuttleworthAbdul Jabbar
Oct 8, 2004·Journal of Helminthology·N B ChiltonG Coulson
Nov 15, 2018·Parasites & Vectors·Rebecca Cole, Mark Viney
Apr 30, 1999·International Journal for Parasitology·R H Andrews, N B Chilton

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