RESISTANCE OF GENETIC CORRELATION STRUCTURE TO DIRECTIONAL SELECTION IN DROSOPHILA MELANOGASTER
RESISTANCE OF GENETIC CORRELATION STRUCTURE TO DIRECTIONAL SELECTION IN DROSOPHILA MELANOGASTER
复制标题
果蝇遗传相关结构对定向选择的抗性
DOI：
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
L. Partridge
中科院分区：
文献类型：
--
作者：
G. Wilkinson;Kevin Fowler;L. Partridge
The genetic covariance and correlation matrices for five morphological traits were estimated from four populations of fruit flies, Drosophila melanogaster, to measure the extent of change in genetic covariances as a result of directional selection. Two of the populations were derived from lines that had undergone selection for large or small thorax length over the preceding 23 generations. A third population was constituted using flies from control lines that were maintained with equivalent population sizes as the selected lines. The fourth population contained flies from the original cage population from which the selected and control lines had been started. Tests of the homogeneity of covariance matrices using maximum likelihood techniques revealed significant changes in covariance structure among the selected lines. Prediction of base population trait means from selected line means under the assumption of constant genetic covariances indicated that genetic covariances for the small population differed more from the base population than did the covariances for the large population. The predicted small population means diverged farther from the expected means because the additive genetic variance associated with several traits increased in value and most of the genetic covariances associated with one trait changed in sign. These results illustrate that genetic covariances may remain nearly constant in some situations while changing markedly in others. Possible developmental reasons for the genetic changes are discussed.
人类遗传学线性建模的通用多变量方法。
影响因子：
9.8
作者：
Carey,G
通讯作者：
Carey,G
空间异质环境中遗传变异的演化：基因型-环境相互作用的影响。
DOI：
10.1017/s001667230002694x
发表时间：
1987
期刊：
Genetical research
影响因子：
--
作者：
Via,S;Lande,R
通讯作者：
Lande,R
科罗拉多州收养项目中的遗传和环境传播：路径分析。
DOI：
10.1111/j.2044-8317.1983.tb01123.x
发表时间：
1983
期刊：
The British journal of mathematical and statistical psychology
影响因子：
--
作者：
Fulker,DW;DeFries,JC
通讯作者：
DeFries,JC