Bottleneck analysis of Yunnan Mithun (Bos frontalis) Based on Microsatellite loci
Mithun or gayal (Bos frontalis), namely Dulong cattle, only inhabits the Gaoligongshan Mountains and Drung River basin in China, one rare and endangered Bos species.To evaluate the genetic diversity and bottleneck effect of Yunnan mithun population, we screened bovine microsatellite loci to provide the genetic information for its conservation strategies and breeding programmes.A total of 126 microsatellite alleles and allele size variance in Yunnan mithun were defined.All of the loci displayed the lower genetic diversity for Yunan mithun population with overall mean of Na=7.88,PIC=0.5965 and He=0.6332, which were lower compared with beef cattle breeds.In spite of its smaller population, the normal L-shaped distribution of ailelic frequencies without any mode-shift indicated the absence of genetic bottleneck in Yunnan mithun population, inferring that Yunnan mithun population underwent the moderate gene introgression from local yellow cattle and zebu.
Yunnan mithun(Bos frontalis) genetic diversity bottleneck effect microsatellite loci
Kai-Xing Qu Zhan-Xing He Guo-Rong Yang Bi-Zhi Huang Lin-Sen Zan Ya-Ping Zhang
College of Animal Science and Technology, Northwest A & F University, Y angling, Shaanxi 712100China Yunnan Academy of Grassland and Animal Science, Xiaoshao, Kunming 650212 China College of Animal Science and Technology, Northwest A & F University, Y angling, Shaanxi 712100China State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, the Chinese A
国内会议
陕西杨凌
英文
154-157
2011-05-01（万方平台首次上网日期，不代表论文的发表时间）