NEW AFRICAN SPECIES IN THE DROSOPHILA-OBSCURA SPECIES GROUP - GENETIC-VARIATION, DIFFERENTIATION AND EVOLUTION
NEW AFRICAN SPECIES IN THE DROSOPHILA-OBSCURA SPECIES GROUP - GENETIC-VARIATION, DIFFERENTIATION AND EVOLUTION
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DOI：
10.1038/hdy.1988.92
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发表时间：
1988-08-01
期刊：
影响因子：
3.8
通讯作者：
ASHBURNER, M
中科院分区：
文献类型：
--
作者：
CARIOU, ML;LACHAISE, D;ASHBURNER, M
在非洲热带地区，已知Drosophila obscura种组来自一个单独的种，D.微唇该物种最近在肯尼亚被重新发现，此外还发现了三个新的D。obscura组种：D. kitumensis、异齿叶蝉D. cariovae和D.克里姆巴西。本文报道了两个非洲种D. microlabis和D. kitumensis与D. obscura集团遗传距离已估计从等位基因频率在35个位点和等位基因推断的方法假设恒定以及可变的进化速率。D. microlabis和D. kitumensis与古北界D. tristis和D.模糊，即使相对遥远。这些数据支持Lakovaara和Saura的假设，即在D. obscura集团此外，我们还提出了非洲新种D.微唇虫种亚组
The Drosophila obscura species group was known in the Afrotropical region from a single species, D. microlabis. This species was recently rediscovered in Kenya in addition to the discovery of three new D. obscura group species: D. kitumensis, D. cariovae and D. krimbasi. The patterns of allozyme variation in two African species, D. microlabis and D. kitumensis is compared to that of nine species of the D. obscura group. Genetic distances have been estimated from allelic frequencies at 35 loci and phylogenies inferred by methods assuming both constant as well as variable evolutionary rates. D. microlabis and D. kitumensis are evolutionary related and close to the Palearctic D. tristis and D. ambigua even if relatively distant. The data support Lakovaara and Saura''s hypothesis recognising three species subgroups within the D. obscura group. In addition, we propose a fourth one for the new African species, the D. microlabis species subgroup.