Asymmetrical Mating Success and the Phylogeny of Drosophila

概要

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Mating successes among five species of the virilis group of Drosophila have been examined by the 'no choice' method. In every reciprocal cross, one-sided (asymmetrical) mating success was detected, from which a unidirectional evolutionary sequence (the relative age of the species) can be postulated, i. e., females of older species mate relatively well with males of younger species but females of younger species do not mate well with males of older species. However, the real phylogeny of the species group is not always unidirectional but often diversely branched. The degree of genetic similarity must be taken into account to search for the immediate ancestor of each species. These two components, the relative age of the species and the immediate ancestor of each species, allow us to postulate the phylogenetic tree of related species in Drosophila.
社団法人日本動物学会の論文
1981-09-25