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Journal of Heredity 2003:94(6)
© 2003 The American Genetic Association 94:472-489

Phylogenetic Relationships of the Phasianidae Reveals Possible Non-Pheasant Taxa

K. L. Bush, and C. Strobeck

From the Department of Biological Sciences, University of Alberta–Edmonton, Edmonton, Alberta T6G 2E9, Canada.

Address correspondence to Krista Bush at the address above, or e-mail: kbush{at}ualberta.ca.

The phylogenetic relationships of 21 pheasant and 6 non-pheasant species were determined using nucleotide sequences from the mitochondrial cytochrome b gene. Maximum parsimony and maximum likelihood analysis were used to try to resolve the phylogenetic relationships within Phasianidae. Both the degree of resolution and strength of support are improved over previous studies due to the testing of a number of species from multiple pheasant genera, but several major ambiguities persist. Polyplectron bicalcaratum (grey peacock pheasant) is shown not to be a pheasant. Alternatively, it appears ancestral to either the partridges or peafowl. Pucrasia macrolopha macrolopha (koklass) and Gallus gallus (red jungle fowl) both emerge as non-pheasant genera. Monophyly of the pheasant group is challenged if Pucrasia macrolopha macrolopha and Gallus gallus are considered to be pheasants. The placement of Catreus wallichii (cheer) within the pheasants also remains undetermined, as does the cause for the great sequence divergence in Chrysolophus pictus obscurus (black-throated golden). These results suggest that alterations in taxonomic classifications may be required for some pheasant species and genera.


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