Authors : Wang Lan-Ping , Geng Rong-Qing and Chang Hong
Abstract: To determine the origin and genetic diversity of Chinese Leiqiong cattle, the complete mtDNA cyt b gene sequences were analyzed. There haplotypes of 18 individuals were identified from 2 polymorphic sites with 1140 bp in lengh. The average haplotype diversity and nucleotide diversity were 0.0741 and 0.0012 indicating rare genetic diversity in Leiqiong cattle. The nucleotide comparison also demonstrated a strong bias towards transition. A neighbor-joining tree was constructed and revealed that Leiqiong cattle only originated from Bos indicus and had no direct relationship with Bos taurus, Bos grunniens and Bos javanicus (banteng). The network relationships of haplotypes from Bos indicus supported the hypothesis that Chinese Leiqiong cattle and other Asian zebus possessed the independent domestication event. It was inferred an independent domestication centre of somewhere in south China.
Wang Lan-Ping , Geng Rong-Qing and Chang Hong , 2009. Mitochondrial DNA Diversity and Origin of Chinese Leiqiong Cattle. Journal of Animal and Veterinary Advances, 8: 1312-1315.