Gimelfarb A, Willis J H
Department of Biology, University of Oregon, Eugene 97403.
Genetics. 1994 Oct;138(2):343-52. doi: 10.1093/genetics/138.2.343.
An experiment was conducted to investigate the offspring-parent regression for three quantitative traits (weight, abdominal bristles and wing length) in Drosophila melanogaster. Linear and polynomial models were fitted for the regressions of a character in offspring on both parents. It is demonstrated that responses by the characters to selection predicted by the nonlinear regressions may differ substantially from those predicted by the linear regressions. This is true even, and especially, if selection is weak. The realized heritability for a character under selection is shown to be determined not only by the offspring-parent regression but also by the distribution of the character and by the form and strength of selection.
进行了一项实验，以研究黑腹果蝇三个数量性状（体重、腹刚毛和翅长）的亲子回归。针对子代某一性状对双亲的回归拟合了线性和多项式模型。结果表明，非线性回归预测的性状对选择的响应可能与线性回归预测的响应有很大差异。即使在选择较弱的情况下，尤其是在这种情况下，也是如此。研究表明，受选择性状的实现遗传力不仅由亲子回归决定，还由性状的分布以及选择的形式和强度决定。
