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Drosophila quinaria Species Group의 遺傳的 近緣關係
成耆昌,金正洙,金大鎰,金彧,金溶聲 성균관대학교 기초과학연구소 1985 論文集 Vol.36 No.2
The genetic relatedness among the Korean Drosophila quinaria species group, including D. nigromaculata, D. unispina, D. brachynephrose, and D. angularis, has been examined by using horizontal starch gel electrophoresis. The results showed that none of the ten isozyme patterns examined for these four species was identical. The average genetic similarity among the four species was found to be 0.440. The similarity among three species. D. unispina, D. brachynephrose, and D. angularis was 0.466. The relatedness was found to be closest between D. nigromaculata and D. unispina, showing 0.640. D. nigromaculata and D. angularis showed relatedness of 0.258. The results suggested that these four species appear to be genetically related at the level of sibling species. The percent polymorphism in D. brachynephrose was found to be 76.9%, showing significant genetic variations.
Drosophila busckii의 韓國集團에서 있어서 同位酵素 多形現象
成耆昌,尙椿植,金彧,金大鎰 성균관대학교 기초과학연구소 1985 論文集 Vol.36 No.1
Genetic structure and variability were investigated in four Korean populations of Drosophila busckii. Eight allozyme loci were analysed by means of starch gel electrophoresis. The proportions of polymorphic loci and loci heterozygous per individual were estimated to be 0.25 and 0.051, respectively. The average genetic similarity between four populations was found to be S―=0.977. This value is similar to the other Drosophila populations reported. However, the gene variation of D. busckii in this study appeared to be the least variable among 28 Drosophila species reported. It is suggested that the low gene variation in D. busckii might be due to adaptation of this species to a narrow niche, but the possibility of occurrence of the random drift cannot be excluded.