| phylogeography of the ring-necked pheasant (phasianus colchicus) in china. | the ring-necked pheasants (phasianus colchicus) are widely distributed in china. we used mitochondrial dna control-region data to investigate the origin and past demographic changes in 139 ring-necked pheasants (p. colchicus) sampled from the species' distribution range. a total of 1078 nucleotides from the control region of mitochondrial dna were sequenced, and 88 polymorphic positions defined 102 haplotypes. high level of genetic diversity was detected in all populations studied which could be ... | 2009 | 19328240 |