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首页> 美国卫生研究院文献>Scientific Reports >Colonization and diversification of the Euphorbia species (sect. Aphyllis subsect. Macaronesicae) on the Canary Islands
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Colonization and diversification of the Euphorbia species (sect. Aphyllis subsect. Macaronesicae) on the Canary Islands

机译：加那利群岛上的大戟属物种（Aphyllis亚科Macaronesicae科）的定居和多样化

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Diversification between islands and ecological radiation within islands are postulated to have occurred in the Euphorbia species (sect. Aphyllis subsect. Macaronesicae) on the Canary Islands. In this study, the biogeographical pattern of 11 species of subsect. Macaronesicae and the genetic differentiation among five species were investigated to distinguish the potential mode and mechanism of diversification and speciation. The biogeographical patterns and genetic structure were examined using statistical dispersal-vicariance analysis, Bayesian phylogenetic analysis, reduced median-joining haplotype network analysis, and discriminant analysis of principal components. The gene flow between related species was evaluated with an isolation-with-migration model. The ancestral range of the species of subsect. Macaronesicae was inferred to be Tenerife and the Cape Verde Islands, and Tenerife-La Gomera acted as sources of diversity to other islands of the Canary Islands. Inter-island colonization of E. lamarckii among the western islands and a colonization of E. regis-jubae from Gran Canaria to northern Africa were revealed. Both diversification between islands and radiation within islands have been revealed in the Euphorbia species (sect. Aphyllis subsect. Macaronesicae) of the Canary Islands. It was clear that this group began the speciation process in Tenerife-La Gomera, and this process occurred with gene flow between some related species.
机译：据推测，加纳利群岛上的大戟属物种（Aphyllis亚科Macaronesicae物种）发生了岛屿之间的多样化和岛屿内的生态辐射。在这项研究中，该亚科的11种生物地理格局。通过对Macaronesicae和五个物种的遗传分化进行研究，以区分其多样性和物种形成的潜在模式和机制。使用统计分散-变异分析，贝叶斯系统发育分析，简化的中位数联合单倍型网络分析和主成分判别分析，检查了生物地理模式和遗传结构。相关物种之间的基因流动用迁移隔离模型进行评估。该亚种的祖先范围。 Macaronesicae被推断为特内里费岛和佛得角群岛，而特内里费岛-拉戈梅拉岛则是加那利群岛其他岛屿的多样性来源。揭示了西部诸岛之间的拉马克埃希氏菌在岛间的殖民化以及从大加那利岛到北非的埃里吉斯-朱拜埃克殖民地。加那利群岛的大戟属物种（Aphyllis亚科Macaronesicae）揭示了岛屿之间的多样化和岛屿内部的辐射。显然，这个群体是在特内里费岛-拉戈梅拉岛开始了物种形成过程的，这一过程发生在一些相关物种之间的基因流动中。

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