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研究报告

Genetic diversity and origin of mitochondrial DNA D-loop region for some domestic goat breeds of China

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  • 1. College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China;
    2. National Center for Preservation and Utilization of Genetic Resources of Domestic Animals and Forages, National Animal Husbandry & Veterinary Service, Beijing 100193, China;
    3. Animal science and technologyy Facult of Gansu Agricultural University, Lanzhou 730070, China;
    4. Animal science and technologyy Facult of Huazhong Agricultural University, Wuhan 430070, China

Received date: 2008-01-04

  Revised date: 2008-03-12

  Online published: 2008-09-10

Abstract

The complete sequences of mitochondrial DNA D-loop of 140 individuals in 10 Chinese goat (Capra hiruc) breeds were analyzed by DNA sequencing technology. The results showed that the length of mtDNA D-loop in Chinese goats was 1 211-1 213 bp. There were 84 different haplotypes and 171 polymorphic sites. The mean nucleotide diversity (Pi) and haplotype diversity (Hd) were 0.02063 ± 0.00225 and 0.988 ± 0.003, respectively, and the average number of nucleotide differences (k) was 24.896. The results showed an abundant genetic diversity in domestic goats of China. The NJ tree indicated that there were two main branches in Chinese domestic goats, thereinto, one branch was clustered with Capra aegagrus, and Capra falconeri was clustered alone, which indicated that Capra aegagrus had more contribution to Chinese domestic goat breeds.

Cite this article

HAO Rong-Chao, ZAN Lin-Sen, LIU Chou-Sheng, WANG Zhi-Gang, ZHANG Gui-Xiang, HAN Xu, HAO Huai-Zhi, WANG Jing, DU Xiao-Yong . Genetic diversity and origin of mitochondrial DNA D-loop region for some domestic goat breeds of China[J]. Hereditas(Beijing), 2008 , 30(9) : 1187 -1194 . DOI: 10.3724/SP.J.1005.2008.01187

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