Evolution of overwintering strategies in Eurasian species of the Drosophila obscura species group
Evolution of overwintering strategies in Eurasian species of the Drosophila obscura species group
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DOI：
10.1111/j.1095-8312.1999.tb01179.x
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发表时间：
1999-11-01
影响因子：
1.9
通讯作者：
Kimura, MT
中科院分区：
文献类型：
--
作者：
Goto, SG;Yoshida, T;Kimura, MT
尽管基于形态学、等位酶和DNA序列的深入分析，暗果蝇种组的欧亚种的系统发育关系仍然不明确。基于细胞色素氧化酶亚基I（COI）和α-甘油磷酸脱氢酶（Gpdh）的序列分析表明，D.阿尔皮纳也是模棱两可的。这些不确定性被认为是由于在这个群的早期进化阶段，其系统辐射迅速。不同种类的越冬策略不同：D. alpina和D. subsilvestris以蛹滞育越冬; bifasciata和D. obscura在生殖滞育期，D. subobscura和D.关车而不进入滞育。这种多样性也可能表明在适应温带气候的早期阶段快速辐射。另一方面，成虫的耐寒性与越冬策略和分布密切相关。obscura和D.双带纹夜蛾对生殖滞育的耐受性很强; alpina和D.在蛹滞育中越冬的林下种（D. subsilvestris）的耐受性较差;无滞育的subobscura为中等耐受性，D.在加那利群岛发生的冠状病毒是相当敏感的。成虫前期的高温耐受性似乎与越冬策略有关，即蛹滞育的种类比生殖滞育或无滞育机制的种类耐受性低。(C)1999年伦敦林奈学会。
The phylogenetic relationship of Eurasian species of the Drosophila obscura species group remains ambiguous in spite of intensive analyses based on morphology, allozymes and DNA sequences. The present analysis based on sequence data for cytochrome oxidase subunit I (COI), and alpha-glycerophosphate dehydrogenase (Gpdh) suggests that the phylogenetic position of D. alpina is also ambiguous. These ambiguities hale been considered to be attributable to rapid phyletic radiation in this group at an early stage of its evolution. Overwintering strategics are diversified among these species: D. alpina and D. subsilvestris pass the winter in pupal diapause, D. bifasciata and D. obscura in reproductive diapause, and D. subobscura and D. guanche without entering diapause. This diversity may also suggest rapid radiation at an early phase of adaptations to temperate climates. On the other hand, adult tolerance of cold was closely related to overwintering strategy and distribution: D. obscura and D. bifasciata with reproductive diapause were very tolerant; D. alpina and D. subsilvestris, which pass the winter in pupal diapause were less tolerant; D. subobscura having no diapause was moderately tolerant and D. guanche occurring in the Canary Islands was rather susceptible. Tolerance of high temperature at the preimaginal stages seemed to be also associated with overwintering strategy; i.e. lower in the species with pupal diapause than in those with reproductive diapause or without diapause mechanism. (C) 1999 The Linnean Society of London.