Light-dependent mating of Drosophila subobscura and species discrimination.

摘要: Wild-type pairs ofDrosophila subobscura do not mate in darkness and males produce a courtship song, suggesting that visual signals are instrumental finding the mating partner distinguishing it from members of other species. Among strain selected for light independence, 28% dark. Results intraspecific matings interspecific withD. pseudoobscura andD. persimilis suggest some reduction activity level as consequence selection This is supported by direct observation behavior both white red light. In light-independent less lively, speed reduced, certain elements omitted. To determine which senses contribute bothD. strains to successful courtship, organs carry various sensory receptors were amputated. pattern has changed during mainly substituting tactile olfactory optical signals.