Phylogeny of the Drosophila immigrans species group (Diptera: Drosophilidae) based on Adh and Gpdh sequences
Phylogeny of the Drosophila immigrans species group (Diptera: Drosophilidae) based on Adh and Gpdh sequences
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DOI：
10.2108/zsj.24.913
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发表时间：
2007-09-01
影响因子：
0.9
通讯作者：
Aotsuka, Tadashi
中科院分区：
文献类型：
--
作者：
Katoh, Toru;Nakaya, Daisuke;Aotsuka, Tadashi
果蝇亚科的迁入种组是东亚果蝇属的代表种组之一。虽然这组构成了在旧世界的果蝇动物区系的重要组成部分，只有少数物种已在以前的分子系统发育研究进行了分析。为了研究迁入果蝇的发生，我们分析了36种果蝇（包括迁入果蝇12种）的乙醇脱氢酶（Adh）和甘油-3-磷酸脱氢酶（Gpdh）两个核基因的核苷酸序列。在系统发育树中，共划分出移民组（D. immigrans，D. formosana，台湾拟步行虫D. ruberrima、红腹叶蝉D. albomicans、黑腹拟步行虫D. nasuta、黑腹叶蝉D. Eschasuta，D. pailidifrons，拟盘毛叶蝉D. hypocausta，拟谷盗D. neohypocausta，拟扁尾叶蝉D. siamana）一致形成一个分支（移民组），虽然在这个分支内的进化并不完全对应于物种亚群的分类。然而，D. annulipes和D. quadrilineata，两者都属于移民组的quadrilineata亚组，不包括在移民组本身。此外，我们还得到了一个意想不到的结果，即D. annulipes与D. maculinotata的funebris组，虽然该分支内的系统发育关系仍然不确定，需要进一步的研究证实。因此，根据目前的研究，移民群体是多系的。
The immigrans species group in the Drosophilinae is one of the representative species groups of Drosophila in East Asia. Although this group constitutes a significant part of the drosophilid fauna in the Old World, only a few species have been analyzed in previous molecular phylogenetic studies. To study the phylogeny of the immigrans group, we analyzed the nucleotide sequences of two nuclear genes, alcohol dehydrogenase (Adh) and glycerol-3-phosphate dehydrogenase (Gpdh), for 36 drosophilid species, including 12 species of the immigrans group. In the resultant phylogenetic trees, 10 species of the immigrans group (D. immigrans, D. formosana, D. ruberrima, D. albomicans, D. nasuta, D. neonasuta, D. pailidifrons, D. hypocausta, D. neohypocausta, D. siamana) consistently formed a clade (the immigrans group proper), although the phylogeny within this clade did not exactly correspond to the classification of species subgroups. However, D. annulipes and D. quadrilineata, both of which belong to the quadrilineata subgroup of the immigrans group, were not included in the immigrans group proper. Furthermore, we obtained the unexpected result that D. annulipes was included in a clade comprising Scaptomyza and Hawaiian Drosophila, together with D. maculinotata of the funebris group, although the phylogenetic relationships within this clade remain uncertain and need to be substantiated with further studies. Thus, according to the present study, the immigrans group is polyphyletic.