The genetic diversity of mtDNA D-loop and the origin of Chinese goats

Yi Chuan Xue Bao. 2006 May;33(5):420-8. doi: 10.1016/S0379-4172(06)60069-3.

Abstract

The complete sequences of mitochondrial DNA D-loop of 128 individuals in nine Chinese goat (Capra hircu) breeds were analyzed by DNA sequencing technology. The results show that the length of mtDNA D-loop in Chinese goats is 1,212-1,213 bp. There are 102 polymorphic sites, accounting for 8.42% of 1,212 bp sequence. Ninety-two mtDNA haplotypes were determined. The haplotype diversity and nucleotide diversity are 0.9333-1.0000 and 0.7062%-1.8265%, respectively. The results indicate that the genetic diversity of Chinese goats is very abundant. The NJ tree indicates that Chinese goats have two types of maternal origins from lineage A and lineage B. The possibility of lineage B originating from China is also discussed.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Base Sequence
  • China
  • DNA, Mitochondrial / genetics*
  • Genetic Variation*
  • Goats / classification
  • Goats / genetics*
  • Haplotypes
  • Molecular Sequence Data
  • Phylogeny
  • Sequence Analysis, DNA

Substances

  • DNA, Mitochondrial