title: [Genetic diversity and origin of mitochondrial DNA D-loop region for some domestic goat breeds of China].
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.
authors.affiliation: College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China. haorongchao2423@sina.com
authors.forename: Rong-Chao
authors.initials: RC
authors.lastname: Hao
authors.forename: Lin-Sen
authors.initials: LS
authors.lastname: Zan
authors.forename: Chou-Sheng
authors.initials: CS
authors.lastname: Liu
authors.forename: Zhi-Gang
authors.initials: ZG
authors.lastname: Wang
authors.forename: Gui-Xiang
authors.initials: GX
authors.lastname: Zhang
authors.forename: Xu
authors.initials: X
authors.lastname: Han
authors.forename: Huai-Zhi
authors.initials: HZ
authors.lastname: Hao
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.forename: Xiao-Yong
authors.initials: XY
authors.lastname: DU
mesh_terms: D000818:Animals; D000829:Animals, Domestic / Q000235:genetics; D002681:China; D004272:DNA, Mitochondrial / Q000032:analysis / Q000737:chemistry / Q000235:genetics*; D019143:Evolution, Molecular; D014644:Genetic Variation; D006041:Goats / Q000235:genetics*; D006239:Haplotypes; D008928:Mitochondria / Q000235:genetics*; D009690:Nucleic Acid Conformation; D017422:Sequence Analysis, DNA
chemical_list: D004272:DNA, Mitochondrial