李俊辉,刘青云,杜晓东,邓岳文,王庆恒

• 1:广东海洋大学水产学院
• 2:广西水产科学研究院
• 3:广东省珍珠养殖与加工工程技术研究中心

摘要(Abstract)：

从大亚湾野生群体选择亲本繁育1个养殖群体,受精第6天、23天与80天分别进行优选,按50%选留比率选留快生长个体,分别在受精后第3天、30天120天取样,利用8对SSR标记分析养殖群体遗传多样性与估计有效亲本数量。结果表明,在3个生长阶段每个位点的平均等位基因数分别为3.750、3.875和3.625,平均观察杂合度分别为0.324 2、0.527 3和0.372 4,平均期望杂合度分别为0.551 1、0.561 3和0.504 8。有效亲本数量的估计分别为38、28和30,3个生长阶段估算的有效亲本数量均比实际所用到的亲本数量少。选优管养措施导致养殖群体的遗传多样性与有效亲本数量降低。

关键词(KeyWords)： 马氏珠母贝;遗传多样性;有效群体数量;SSR标记

Abstract:

Keywords:

基金项目(Foundation): 广东省海洋与渔业局科技专项(A201308A10,Z2014009);; 广东省科技专项(2015A030302079)

作者(Author): 李俊辉,刘青云,杜晓东,邓岳文,王庆恒

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