选型交配与分离方差。

Assortative mating and the segregation variance.

作者信息

Rogers A

出版信息

Theor Popul Biol. 1983 Feb;23(1):110-3. doi: 10.1016/0040-5809(83)90007-2.

Abstract

Feldman and Cavalli-Sforza (Theoret. Pop. Biol. (1979), 15, 276-307; (1981), 19, 370-377) have emphasized the role of the segregation variance in models of assortative mating for continuous characters. This note examines its behavior in the context of a general additive model. Using known results concerning the effects of assortative mating and selection on genic variance and correlations among uniting gametes it is shown that the effects of these processes on segregation variance wil be small if the effective number of loci is large. Thus models in which the segregation variance remains constant are approximate descriptions of the behavior of characters determined by many loci.

摘要

费尔德曼和卡瓦利 - 斯福扎（《理论种群生物学》（1979年），第15卷，第276 - 307页；（1981年），第19卷，第370 - 377页）强调了分离方差在连续性状选型交配模型中的作用。本注释在一般加性模型的背景下研究了其行为。利用关于选型交配和选择对基因方差以及结合配子间相关性影响的已知结果表明，如果基因座的有效数量很大，那么这些过程对分离方差的影响将很小。因此，分离方差保持恒定的模型是对由许多基因座决定的性状行为的近似描述。