Max-Planck-Institut fuer Evolutionsbiologie, Abteilung Evolutionsgenetik, August-Thienemannstrasse 2, 24306 Ploen, Germany.
Trends Genet. 2010 Feb;26(2):54-8. doi: 10.1016/j.tig.2009.12.001. Epub 2010 Jan 13.
Natural hybridization between closely related taxa is a common phenomenon in both plants and animals. Hybridization has often been viewed as a destructive force that could erode established gene pools, but it is increasingly being recognized as a potentially creative force in evolution because it can lead to a mixture of novel genotypes, some of which have the potential for rapid adaptation to new environmental conditions. However, the evolutionary dynamics leading to the emergence of newly adapted gene pools after hybridization are largely unexplored. Here, we argue that the identification and analysis of the dynamic processes that occur after the first contact deserve specific attention, because this is the phase where hybrid speciation is most different from other forms of speciation.
自然杂交在植物和动物中都是一种常见的现象，发生在亲缘关系较近的分类单元之间。杂交曾被普遍视为一种具有破坏性的力量，可能会侵蚀已建立的基因库，但它越来越被认为是进化过程中的一种潜在的创造性力量，因为它可以导致新型基因型的混合，其中一些具有快速适应新环境条件的潜力。然而，导致杂交后新适应基因库出现的进化动态在很大程度上仍未得到探索。在这里，我们认为，识别和分析杂交后发生的动态过程值得特别关注，因为这是杂种形成最不同于其他形式物种形成的阶段。
