Phylogenetic relationships of five pika species (genus Ochotona) based on mitochondrial DNA restriction maps

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	Phylogenetic relationships of five pika species (genus Ochotona) based on mitochondrial DNA restriction maps
	Yu N ; Zheng CL ; Shi LM ; Wang W ; Lan H ; Zhang YP
	1996
发表期刊	SCIENCE IN CHINA SERIES C-LIFE SCIENCES ; Yu N, Zheng CL, Shi LM, Wang W, Lan H, Zhang YP.Phylogenetic relationships of five pika species (genus Ochotona) based on mitochondrial DNA restriction maps.SCIENCE IN CHINA SERIES C-LIFE SCIENCES,1996,39(2):113-122
摘要	Restriction site mapping of mitochondrial DNA (mtDNA) with 16 restriction endonucleases was used to examine the phylogenetic relationships of Ochotona cansus, O. huangensis, O. thibetana, O. curzoniae and O. erythrotis. A 1-kb length variation between O. erythrotis of subgenus Pika and other four species of subgenus Ochotona was observed, which may be a useful genetic marker for identifying the two subgenera. The phylogenetic tree constructed using PAUP based on 61 phylogenetically informative sites suggests that O. erythrotis diverged first, followed by O. cansus, while O. curzoniae and O. huangensis are sister taxa related to O. thibetana, The results indicate that both O. cansus and O. huangensis should be treated as independent species. If the base substitution rate of pikas mtDNA was 2% per million years, then the divergence time of the two subgenera, Pika and Ochotana, is about 8.8 Ma ago of late Miocence, middle Bao-dian of Chinese mammalian age, and the divergence of the four species in subgenus Ochotona would have occurred about 2.5 - 4.2 Ma ago, Yushean of Chinese mammalian age. This calculation appears to be substantiated by the fossil record.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/35661
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Yu N,Zheng CL,Shi LM,et al. Phylogenetic relationships of five pika species (genus Ochotona) based on mitochondrial DNA restriction maps[J]. SCIENCE IN CHINA SERIES C-LIFE SCIENCES, Yu N, Zheng CL, Shi LM, Wang W, Lan H, Zhang YP.Phylogenetic relationships of five pika species (genus Ochotona) based on mitochondrial DNA restriction maps.SCIENCE IN CHINA SERIES C-LIFE SCIENCES,1996,39(2):113-122,1996.
APA	Yu N,Zheng CL,Shi LM,Wang W,Lan H,&Zhang YP.(1996).Phylogenetic relationships of five pika species (genus Ochotona) based on mitochondrial DNA restriction maps.SCIENCE IN CHINA SERIES C-LIFE SCIENCES.
MLA	Yu N,et al."Phylogenetic relationships of five pika species (genus Ochotona) based on mitochondrial DNA restriction maps".SCIENCE IN CHINA SERIES C-LIFE SCIENCES (1996).