Species-wide survey reveals the various flavors of intraspecific reproductive isolation in yeast.
Species-wide survey reveals the various flavors of intraspecific reproductive isolation in yeast.
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DOI：
10.1093/femsyr/fow048
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发表时间：
2016-08
影响因子：
3.2
通讯作者：
J. Hou;Téo Fournier;J. Schacherer
中科院分区：
文献类型：
--
作者：
J. Hou;Téo Fournier;J. Schacherer
探索同一物种内生殖隔离的起源和程度对于捕捉物种形成的早期事件是有价值的。在多种遗传模型中，最近在种内尺度上观察到生殖隔离，这表明物种形成的原始潜力很容易在种群内分离，这在广泛的背景下可能是一种规则而不是例外。我们简要地概述了拟南芥、秀丽隐杆线虫、黑腹果蝇及其近亲等主要模式生物合子后固有分离的分子证据。然后，我们将重点介绍酵母的最新进展，并回顾了在酵母属的多个成员之间，特别是在酿酒酵母中，合子后分离的遗传基础。我们讨论了涉及生殖分离的各种机制的作用，包括DNA序列分化，染色体重排，细胞核以及核-核遗传不相容，并提供了沿遗传分化连续体的比较观点。它包括种内种群，最近描绘了同一亚门的新生物种以及密切相关的姐妹物种。
Exploring the origin and extent of reproductive isolation within the same species is valuable to capture early events to the onset of speciation. In multiple genetic models, reproductive isolation was recently observed at the intraspecific scale, indicating that the raw potential for speciation segregates readily within populations, which could be a rule rather than an exception in a broad context. We briefly recapitulate the molecular evidence of intrinsic post-zygotic isolation in major model organisms including Arabidopsis thaliana, Caenorhabditis elegans, Drosophila melanogaster and their close relatives. We then focus on recent advances in yeast and review the genetic basis of post-zygotic isolation within and between multiple members of the Saccharomyces genus, especially in Saccharomyces cerevisiae We discuss the role of various mechanisms involved in the onset of reproductive isolation including DNA sequence divergence, chromosomal rearrangement, cytonuclear as well as nuclear-nuclear genetic incompatibilities and provide a comparative view along a continuum of genetic differentiation, which encompasses intraspecific populations, recent delineating nascent species as well as closely related sister species in the same subphylum.