| complete mitochondrial genome of tundra swan cygnus columbianus jankowskii (anseriformes: anatidae). | cygnus columbianus jankowskii is a subspecies of tundra swan, which breeds in eastern russia and northeast china, wintering in the middle and lower reaches of the yangtze river. in this study, we used pcr-based method to obtain the complete mtdna of this subspecies. the arrangement pattern of the complete mtdna is identical with typical bird species, which is the shortest (16,723 bp) in three subspecies. the length of the pcgs is same except nd2, nd3 and nd6, and the initiation/termination codon ... | 2016 | 24438252 |