Introgression.
Introgression.
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DOI：
10.1016/j.cub.2022.07.004
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发表时间：
2022-08-22
期刊：
影响因子：
9.2
通讯作者：
Schumer, Molly
中科院分区：
文献类型：
--
作者：
Aguillon, Stepfanie M.;Dodge, Tristram O.;Preising, Gabriel A.;Schumer, Molly
生物学家一直试图了解物种是如何产生和延续的。从历史上看，很少杂交或生殖隔离的物种被认为是常态，而那些生殖完全隔离的物种则被认为不太常见。在过去的几十年里，基因组学的进步改变了我们对物种之间基因流动频率的理解，也改变了我们对自然界中生殖隔离的看法。这些进步揭示了物种之间丰富而复杂的基因交换历史，表明这种基因渗入是一个重要的进化过程，在整个生命之树上广泛存在（图1）。
Biologists have forever sought to understand how species arise and persist. Historically, species that rarely interbreed, or are reproductively isolated, were considered the norm, while those with incomplete reproductive isolation were considered less common. Over the last few decades, advances in genomics have transformed our understanding of the frequency of gene flow between species and with it our ideas about reproductive isolation in nature. These advances have uncovered a rich and often complicated history of genetic exchange between species — demonstrating that such genetic introgression is an important evolutionary process widespread across the tree of life (Figure 1).