陆川猪mtDNA D-loop序列遗传多样性分析

本研究测定了陆川猪17个个体mtDNA D-loop高变区序列,共检测到5个单倍型,单倍型多样度和核苷酸多样度分别为0.640和0.0074,表明陆川猪有较高的遗传多样性。结合已报道的中国地方猪种的mtDNA D-loop序列进行分析,结果发现,陆川猪和属于华中型的宁乡猪、大花白猪有很近的遗传关系,但与传统上同属华南型的香猪和滇南小耳猪的遗传关系较远,这与传统的分类方法不一致。

Analysis of mtDNA Partial D-loop Sequences in Luchuan Pig

In order to provide scientific basis for studying the origin and the genetic differentiation of Luchuan pig, we surveyed the mtDNA D-loop hypervariable regions of 17 Luchuan pigs and five haplotypes were detected. The haplotype diversity and the nucleotide diversity were 0.640 and 0.0074 respectively that suggested the genetic diversity of Luchuan pig was abundant. Analyzed with the same segments from the indigenous chinese pigs retrieved from the GenBank, we concluded that Luchuan pig was close with Ningxiang pig and Dahuabai pig which traditionally belonged to central Chinese breeds, but distant with Xiang pig and Diannan Small Ear pig which all traditionally belonged to south China breeds. It was inconsistent with the traditional pig breed grouping system.