The changes in genetic and environmental variance with inbreeding in Drosophila melanogaster.

摘要: We performed a large-scale experiment on the effects of inbreeding and population bottlenecks additive genetic environmental variance for morphological traits in Drosophila melanogaster. Fifty-two inbred lines were created from progeny single pairs, 90 parent-offspring families average measured each these six wing size shape traits, as well 1945 outbred which derived. The amount has been observed to increase after such other studies; contrast here mean change was very good agreement with classical theory, decreasing proportionally coefficient lines. residual, probably environmental, increased inbreeding. Both components highly variable among lines, increases decreases recorded both. residual provides some evidence basis developmental stability. Changes phenotypic are largely due changes variance.