摘要
广西三黄鸡是我国著名的地方鸡品种,其肉质优良,具"三黄"特征。本研究采用30对微卫星标记分析广西三黄鸡群体的遗传多样性。结果共检测到212个等位基因,30个微卫星位点均表现出多态性,每个座位的等位基因数从2～11不等,平均等位基因数为7.067个;期望杂合度在0.500～0.847之间,均值为0.734,说明该群体具有较高的遗传变异水平;FIS值表明该群体的近交水平低,瓶颈效应分析结果表明该群体近期未经历过瓶颈效应。
Guangxi three-yellow chicken is a light-body type breed with good meat quality,which is famous for its three ＂yellow＂ morphology features in China.In this paper,30 microsatellite makers were used to study genetic diversity of Guangxi three-yellow chicken.Microsatellite genotypes were derived,and allelic and genotypic frequencied,hererozygosities and gene diversity were estimated.A total of 212 alleles were distinguished.All the microsatellites were polymorphic,with mean allelic number of 7.067,ranging 2 to 11 per locus.The expected hererozygosity in the population ranged between 0.500 and 0.847,with mean of 0.734,indicating considerable genetic variation in this population.The FIS values indicated low levels of inbreeding in the population.Genetic bottleneck hypotheses were also explored.The results suggested that the Guangxi three-yellow chicken population had not experienced a genetic bottleneck in the recent past.
出处
《中国家禽》
北大核心
2011年第15期20-23,共4页
China Poultry
基金
现代农业产业技术体系建设专项资金
国家高技术研究发展计划(863计划)(2011AA100301)
江苏省家禽科学研究所青年(博士)基金(No.JQ2009001)
关键词
遗传多样性
微卫星
瓶颈效应
广西三黄鸡
genetic diversity
microsatellites
genetic bottleneck
Guangxi three-yellow chicken
