陶后全,吴灶和,白成,刘冠,刘志刚

• 1:广东海洋大学水产学院
• 2:广东海洋大学广东省水产经济动物病原生物学及流行病学重点实验室
• 3:广东省教育厅水产经济动物病害控制重点实验室
• 4:仲恺农业工程学院

摘要(Abstract)：

以马氏珠母贝选育系F6代为亲本,采用巢式设计方法和人工解剖授精技术,依照1雄配3雌的原则,建立了8个父系半同胞家系和24个母系全同胞家系,在第8、21、35和50天测定了每个母系全同胞个体的壳长和壳高,以全同胞组内相关分析法估计马氏珠母贝早期生长性状的遗传参数。结果表明,母系半同胞个体具有较大的变异程度,存在着较大的母性效应,父系半同胞组内相关分析法估算的狭义遗传力是马氏珠母贝遗传力的估计值。8-50日龄壳长狭义遗传力估计值为0.11~1.14,壳高狭义遗传力估计值为0.12~1.04,其中利用父系半同胞组内相关法估计壳长的遗传力依次为0.17、0.19、0.12、0.11,壳高的遗传力依次为0.20、0.23、0.13、0.12,属于中等遗传力。马氏珠母贝早期生长性状的遗传相关和表型相关表现为一定的正相关,相关系数的范围分别为0.528~0.746和0.747~0.921。在早期生长阶段以壳长或壳高为参数进行选择育种时,具有较大的遗传改良潜力。

关键词(KeyWords)： 马氏珠母贝;幼体;生长性状;遗传力;遗传相关

Abstract:

Keywords:

基金项目(Foundation): 广东省海洋渔业科技推广专项(A201108A04、A201208A01);; 广东省科技计划(2010B020201014)

作者(Author): 陶后全,吴灶和,白成,刘冠,刘志刚

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