title: Synergistic Effect of Inbreeding on Viability in DROSOPHILA VIRILIS.
abstract: 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.
authors.affiliation: Department of Biology, Faculty of Science, Tokyo Metropolitan University, Setagaya-ku, Tokyo 158, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Kosuda