TY - JOUR T1 - Mitochondrial DNA Diversity and Origin of Chinese Leiqiong Cattle AU - , Wang Lan-Ping AU - , Geng Rong-Qing AU - , Chang Hong JO - Journal of Animal and Veterinary Advances VL - 8 IS - 7 SP - 1312 EP - 1315 PY - 2009 DA - 2001/08/19 SN - 1680-5593 DO - javaa.2009.1312.1315 UR - https://makhillpublications.co/view-article.php?doi=javaa.2009.1312.1315 KW - mtDNA KW -origin KW -cyt b gene KW -Leiqiong cattle KW -haplotypes KW -China AB - 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. ER -