Polymorphism in mitochondrial DNA (mtDNA) of yak (Bos grunniens).
Mitochondrial DNAs (mtDNA) from 21 yaks (Bos grunniens) were assayed for restriction fragment length polymorphisms by using 20 restriction endonucleases, six of which (AvaI, AvaII, BgIII, EcoRI, HindIII, and HpaI) detected polymorphism. Four different mtDNA haplotypes were identified. Combining this with previous reports about the mtDNA RFLPs of B. indicus and B. taurus, there are obvious differences in mtDNA polymorphism between the yak and other Bos species. We estimated that the divergence times between the ancestor of B. grunniens and the ancestor of B. taurus or B. indicus were about 1.2-2.2 and 1.01-2.02 million years ago, respectively.
Kunming Institute of Zoology, The Chinese Academy of Sciences, People's Republic of China.
Zheng-Chao
ZC
Tu
Huai
H
Qiu
Ya-Ping
YP
Zhang
D000818:Animals; D002417:Cattle / Q000235:genetics*; D004262:DNA Restriction Enzymes; D004272:DNA, Mitochondrial / Q000235:genetics*; D005819:Genetic Markers; D014644:Genetic Variation; D006239:Haplotypes; D011110:Polymorphism, Genetic; D015183:Restriction Mapping
D004272:DNA, Mitochondrial; D005819:Genetic Markers; D004262:DNA Restriction Enzymes