Department of Biology, Faculty of Science, Tokyo Metropolitan University, Setagaya-ku, Tokyo 158, Japan.
Genetics. 1972 Nov;72(3):461-8. doi: 10.1093/genetics/72.3.461.
The effect of inbreeding on egg to adult viability was determined for Drosophila virilis over a wide range of inbreeding levels (0 < F <.734). The quantity -log(e) (Viability) was found to be a curvilinear function of F, indicating synergistic interaction among loci. The curvature was not evident, however, below F =.500. The values of A and B (Mortonet al. 1956) were calculated to be.06 and.77-.86, respectively. This extremely small value of A yielded a very large value for the B/A ratio i.e., 12.51-14.99.
在广泛的近交水平(0 < F <.734)下,测定了近交对黑腹果蝇卵到成虫存活率的影响。发现数量 -log(e)(存活率)是 F 的曲线函数,表明基因座之间存在协同作用。然而,在 F <.500 时,这种曲率并不明显。根据莫顿等人(1956 年)的计算,A 和 B 的值分别为.06 和.77-.86。A 的这个极小值导致 B/A 比值非常大,即 12.51-14.99。