超越物种形成基因：进化和物种形成中基因组稳定性概述。
Beyond speciation genes: an overview of genome stability in evolution and speciation.
机构信息
Department of Molecular Biology and Genetics, Cornell University, 526 Campus Road, Ithaca, NY 14853, United States.
Department of Molecular Biology and Genetics, Cornell University, 526 Campus Road, Ithaca, NY 14853, United States.
出版信息
Curr Opin Genet Dev. 2017 Dec;47:17-23. doi: 10.1016/j.gde.2017.07.014. Epub 2017 Aug 19.
Abstract
Genome stability ensures individual fitness and reliable transmission of genetic information. Hybridization between diverging lineages can trigger genome instability, highlighting its potential role in post-zygotic reproductive isolation. We argue that genome instability is not merely one of several types of hybrid incompatibility, but rather that genome stability is one of the very first and most fundamental traits that can break down when two diverged genomes are combined. Future work will reveal how frequent and predictable genome instability is in hybrids, how it affects hybrid fitness, and whether it is a direct cause or consequence of speciation.
摘要
基因组稳定性确保了个体的适应性和遗传信息的可靠传递。不同谱系之间的杂交可能会引发基因组不稳定，这凸显了其在合子后生殖隔离中的潜在作用。我们认为，基因组不稳定不仅仅是几种杂种不亲和性之一，而是当两个分化的基因组结合时，它是第一个也是最基本的特征之一，可能会被打破。未来的工作将揭示在杂种中基因组不稳定的频率和可预测性如何，它如何影响杂种的适应性，以及它是否是物种形成的直接原因或结果。
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