| 多个数量性状的遗传变异的研究 Ⅱ遗传协方差阵各组成部分的估算和分析 |
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| 引用本文： | 张文正.多个数量性状的遗传变异的研究 Ⅱ遗传协方差阵各组成部分的估算和分析[J].湖南师范大学自然科学学报,1986(4). |
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| 作者姓名： | 张文正 |
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| 摘 要： | 本文提出了估算加性遗传协方差阵、显性遗传协方差阵及上位性遗传协方差阵的P~*—F_1~*—F_2~*法和P~*—F_1~*法;并用加性遗传贡献率来度量由加性效应所引起的遗传变异在总的遗传变异中所占比重。最后用P~*—F_1~*法进行了实例分析。
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| 关 键 词： | 加性遗传协方差阵 显性遗传协方差阵 上位性遗传协方差阵 加性遗传贡献率 |
STUDIES ON THE GENETIC VARIATION OF MULTIPLE QUANTITATIVE TRAITS II. THE ESTIMATION AND ANALYSIS OF THE COMPOENTS OF THE GENETIC COVARIANCE MATRIXES |
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| Zhang Wenzheng.STUDIES ON THE GENETIC VARIATION OF MULTIPLE QUANTITATIVE TRAITS II. THE ESTIMATION AND ANALYSIS OF THE COMPOENTS OF THE GENETIC COVARIANCE MATRIXES[J].Journal of Natural Science of Hunan Normal University,1986(4). |
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| Authors: | Zhang Wenzheng |
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| Institution: | Zhang Wenzheng |
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| Abstract: | Based on the analysis reported in the first paper of the study, two methods are proposed to estimate additive dominance and epistatic co-variance matrixes, and a new genetic parameter Ra~2, additive genetic contribution ratio is used to measure the degree of genetic variation caused by the additive effect in the total genetic variation, thus two formulae are presented to calculate Ra~2 for the P~* and F_1~* populations separately. |
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| Keywords: | additive covariance matrix dominance covariance matrix epistatic covariance matrix additive genetic contribution ratio |
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