费希尔选型交配模型中的显性方差。

Dominance variance in Fisher's model of assortative mating.

作者信息

Vetta A

出版信息

Ann Hum Genet. 1976 May;39(4):447-53. doi: 10.1111/j.1469-1809.1976.tb00151.x.

DOI:10.1111/j.1469-1809.1976.tb00151.x

Abstract

It is argued that there is some confusion in the literature concerning the effect of assortative mating on dominance variance. It is shown that in Fisher's model of assortative mating additive deviations of one factor are correlated with additive deviations of another and that this correlation is responsible for the increase in genetic variance. The dominance deviations of one factor are independent of the dominance, as well as of the additive deviations of a second factor. It is shown that in Fisher's model of assortative mating and to the approximation used by him, the dominance variance does not change under assortative mating.

摘要

有人认为，文献中关于选型交配对显性方差的影响存在一些混淆。结果表明，在费希尔的选型交配模型中，一个因子的加性偏差与另一个因子的加性偏差相关，并且这种相关性导致了遗传方差的增加。一个因子的显性偏差与另一个因子的显性以及加性偏差无关。结果表明，在费希尔的选型交配模型及其所用的近似方法中，选型交配下显性方差不变。