TY - JOUR
T1 - Phylogeny and biogeography of species of Syphacia Seurat, 1916 (Nemata:Oxyurida:Oxyuridae) from the Australian Bioregion
AU - Weaver, Haylee J.
AU - Monks, Scott
AU - Gardner, Scott L.
N1 - Publisher Copyright:
© CSIRO 2016.
PY - 2016
Y1 - 2016
N2 - Pinworm nematodes of the genus Syphacia (Nemata:Oxyurida:Oxyuridae) have a global distribution, and infect the caecum of rodents. Within the Australian Bioregion, 17 species of Syphacia infect a range of rodent hosts. Pinworms are traditionally thought to have coevolutionary relationships with their hosts, but the evolution and dispersal of Australian rodents and their helminths remains unclear. This combination of factors allowed us to investigate the likely relationships of Australian Syphacia species based on phylogenetic analysis, overlaid with the ecology and relationships of host species. We conducted a phylogenetic analysis using morphological characters of the species of Syphacia from the Australian Bioregion in order to examine the relationships between species, and to investigate how host evolution and phylogeny could inform (or be informed) by parasite phylogeny. Application of the taxon pulse theory of parasite speciation by matching host species to parasites shed some light on the timing of speciation of rodent hosts. We found that species of Syphacia had reasonably close host-parasite relationships, with additional evidence for ecological fitting or host switching occurring. Evidence provided here suggests strongly that most elements of the Stockholm Paradigm are at play in structuring the relationships we observe in this pinworm-mammal system.
AB - Pinworm nematodes of the genus Syphacia (Nemata:Oxyurida:Oxyuridae) have a global distribution, and infect the caecum of rodents. Within the Australian Bioregion, 17 species of Syphacia infect a range of rodent hosts. Pinworms are traditionally thought to have coevolutionary relationships with their hosts, but the evolution and dispersal of Australian rodents and their helminths remains unclear. This combination of factors allowed us to investigate the likely relationships of Australian Syphacia species based on phylogenetic analysis, overlaid with the ecology and relationships of host species. We conducted a phylogenetic analysis using morphological characters of the species of Syphacia from the Australian Bioregion in order to examine the relationships between species, and to investigate how host evolution and phylogeny could inform (or be informed) by parasite phylogeny. Application of the taxon pulse theory of parasite speciation by matching host species to parasites shed some light on the timing of speciation of rodent hosts. We found that species of Syphacia had reasonably close host-parasite relationships, with additional evidence for ecological fitting or host switching occurring. Evidence provided here suggests strongly that most elements of the Stockholm Paradigm are at play in structuring the relationships we observe in this pinworm-mammal system.
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U2 - 10.1071/ZO15080
DO - 10.1071/ZO15080
M3 - Article
AN - SCOPUS:84984664781
VL - 64
SP - 81
EP - 90
JO - Australian Journal of Zoology
JF - Australian Journal of Zoology
SN - 0004-959X
IS - 2
ER -