Recombination Rate Evolution and the Origin of Species.

Recombination Rate Evolution and the Origin of Species.
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重组率进化和物种起源。

DOI:
10.1016/j.tree.2015.12.016
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发表时间:
2016
影响因子:
16.8
通讯作者:
L. Rieseberg
L. Rieseberg
中科院分区:
生物学1区
文献类型:
--
作者:
D. Ortiz;J. Engelstädter;L. Rieseberg

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将初期物种溶解为表型连续体的方法是重组它们的遗传物质。因此,物种形成的研究者对减少局部适应谱系之间重组的机制越来越感兴趣。大量证据表明,染色体重排通过抑制杂种减数分裂过程中的重组,在适应和物种形成中发挥着重要作用。相比之下,重组率的基因修饰因子在物种形成研究中基本上被忽略了。我们展示了两种类型的重组率降低如何促进基因流的分化,包括适应性分化的早期阶段、二次接触后物种的持久性和强化。
A recipe for dissolving incipient species into a continuum of phenotypes is to recombine their genetic material. Therefore, students of speciation have become increasingly interested in the mechanisms by which recombination between locally adapted lineages is reduced. Evidence abounds that chromosomal rearrangements, via their suppression of recombination during meiosis in hybrids, play a major role in adaptation and speciation. By contrast, genic modifiers of recombination rates have been largely ignored in studies of speciation. We show how both types of reduction in recombination rates facilitate divergence in the face of gene flow, including the early stages of adaptive divergence, the persistence of species after secondary contact, and reinforcement.
DOI: 10.1146/annurev.ecolsys.39.110707.173532
发表时间: 2008-12-01
期刊: Annual review of ecology, evolution, and systematics
影响因子: --
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