Genetic consequences of cladogenetic vs. anagenetic speciation in endemic plants of oceanic islands
Genetic consequences of cladogenetic vs. anagenetic speciation in endemic plants of oceanic islands
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DOI：
10.1093/aobpla/plv102
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发表时间：
2015-08
期刊：
影响因子：
2.9
通讯作者：
Koji Takayama;Patricio López-Sepúlveda;J. Greimler;D. Crawford;P. Peñailillo;M. Baeza;E. Ruiz;G. Kohl;K. Tremetsberger;A. Gatica;L. Letelier;Patricio Novoa;J. Novak;T. Stuessy
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文献类型：
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作者：
Koji Takayama;Patricio López-Sepúlveda;J. Greimler;D. Crawford;P. Peñailillo;M. Baeza;E. Ruiz;G. Kohl;K. Tremetsberger;A. Gatica;L. Letelier;Patricio Novoa;J. Novak;T. Stuessy
本文首次比较了大洋岛屿植物中两种不同类型物种形成的遗传后果。使用两种不同的 DNA 方法从胡安·费尔南德斯群岛（智利）两个主要岛屿的 4,000 多种植物中获得遗传数据。结果表明，一些移民群体经历了重大分裂事件，并且每个进化谱系中的遗传多样性有限。相比之下，其他移民群体虽然建立并扩大，但从未分裂，因此积累了更高水平的遗传多样性。
This paper presents for the first time a comparison of the genetic consequences of two different types of speciation in plants of an oceanic island. Genetic data, using two different DNA methods, were obtained from more than 4,000 plants from the two major islands of the Juan Fernández Archipelago (Chile). Results show that some immigrant populations undergo major splitting events and harbor limited genetic diversity within each evolving line. In contrast, other immigrant populations establish and enlarge, but they never split, hence accumulating higher levels of genetic diversity.