Homoploid hybrid speciation in an extreme habitat
Homoploid hybrid speciation in an extreme habitat
复制标题
DOI：
10.1126/science.1135875
复制
发表时间：
2006-12-22
期刊：
影响因子：
56.9
通讯作者：
Nice, Chris C.
中科院分区：
文献类型：
--
作者：
Gompert, Zachariah;Fordyce, James A.;Nice, Chris C.
根据理论，同倍体杂交物种形成，即染色体数目没有变化的杂交物种形成，是通过适应新的或极端的栖息地而促进的。利用分子生物学和生态学数据，我们发现灰蝶属中适应高山的蝴蝶是杂交物种形成的产物。高山居群具有来自两个L. melissa和L. idas和分化和年轻比他们假定的父母种。正如预测的那样，适应性特征可能允许持久性的环境极端的高山栖息地和繁殖隔离这些人口从他们的父母种。
According to theory, homoploid hybrid speciation, which is hybrid speciation without a change in chromosome number, is facilitated by adaptation to a novel or extreme habitat. Using molecular and ecological data, we found that the alpine-adapted butterflies in the genus Lycaeides are the product of hybrid speciation. The alpine populations possess a mosaic genome derived from both L. melissa and L. idas and are differentiated from and younger than their putative parental species. As predicted, adaptive traits may allow for persistence in the environmentally extreme alpine habitat and reproductively isolate these populations from their parental species.