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当前位置: 首页 > 文章 > 鸡开产日龄和开产体质量的主基因+多基因混合遗传分析 江西农业大学学报 2015 (3) 530-535
Position: Home > Articles > Genetic Analysis of Chicken Age and Body Weight at the First Egg Laying Using Mixed Major Gene and Polygene Mixed Modelinheritance Acta Agriculturae Universitatis Jiangxiensis 2015 (3) 530-535

鸡开产日龄和开产体质量的主基因+多基因混合遗传分析

作  者：
马猛;王克华;曲亮;窦套存;沈曼曼;郭军;卢建;胡玉萍
单  位：
扬州翔龙禽业发展有限公司;江苏省家禽科学研究所
关键词：
开产日龄;开产体重;主基因;多基因;遗传
摘  要：
为研究鸡开产性状的分子遗传机理,揭示其内在遗传规律,以绿壳蛋鸡黑羽纯系和白来航鸡为亲本构建资源群体,测定亲本P1、P2和F1、F2代的开产日龄和开产体质量,运用数量性状主基因+多基因混合遗传模型软件SEA-G4F2对开产日龄和开产体质量进行遗传分析。结果表明:开产日龄的遗传模型为模型E,即两对加性-显性-上位性主基因+加性-显性-上位性多基因混合遗传模型,主基因遗传率为25.06%;开产体质量的适合模型为模型E-1,即2对加性-显性-上位性主基因+加性-显性多基因混合遗传模型,其主基因遗传力达到了63.28%,两个性状的多基因遗传率均很小,主基因对两个性状的调控作用远远大于多基因。
译  名：
Genetic Analysis of Chicken Age and Body Weight at the First Egg Laying Using Mixed Major Gene and Polygene Mixed Modelinheritance
作  者：
MA Meng;WANG Ke-hua;QU Liang;DOU Tao-cun;SHEN Man-man;GUO Jun;LU Jian;HU Yu-ping;Institute of Poultry Science of Jiangsu Province;Yangzhou Xianglong Poultry Co. ,Ltd.;
关键词：
age at the first egg laying;;body weight at the first egg laying;;major gene;;polygene;;heredity
摘  要：
In order to study the molecular genetic mechanism and inherent genetic discipline of some traits at the first egg laying in chicken. Green-eggshell layer black feather pure lines and White Leghorn acted as parents to constructed the resource population,the age and body weight at the first egg laying of P1,P2,F1 and F2were measured,the analysis software of major gene and polygene mixed inheritance model in the age and body weight at the first egg laying was SEA-G4F2. The results showed that the inheritance model of the age at the first egg laying was E,namely two pairs of additive-dominance-epistatic major-genes plus additive-dominance-epistatic polygene mixed genetic model,the heritability of major-gene was 25. 06%; the best model of the weight at the first egg laying was model E-1,namely two pairs of additive-dominance-epistatic major-genes plus additive-dominance polygene mixed genetic model,the heritability of the major-genes was 63. 28%,The polygene heritability of these traits was low,the major genes had a bigger effect on these traits.

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