SPECIATION DRIVEN BY NATURAL-SELECTION IN DROSOPHILA
SPECIATION DRIVEN BY NATURAL-SELECTION IN DROSOPHILA
复制标题
DOI：
10.1038/375674a0
复制
发表时间：
1995-06-22
期刊：
影响因子：
64.8
通讯作者：
NOOR, MA
中科院分区：
文献类型：
--
作者：
NOOR, MA
强化是自然选择加强初始物种之间的性别隔离，减少不适应杂交的频率，从而完成生殖隔离的过程。虽然这种物种形成模型曾经被广泛接受(1，2)，但它的合理性(3，4)和实验支持(5-7)最近受到了攻击。在这里，我们提供了一个通过强化在北美果蝇假黑腹果蝇中形成物种的例子。这一结果表明，假黑斑潜蝇的雌性通过对不适应杂交的自然选择而进化出与其近亲物种同源的性隔离。
REINFORCEMENT is the process by which natural selection strengthens sexual isolation between incipient species, reducing the frequency of maladaptive hybridization and hence completing reproductive isolation. Although this model of speciation was once widely accepted(1,2), its plausibility(3,4) and experimental support(5-7) have been recently attacked. Here we provide an example of speciation by reinforcement, in the North American fruitfly Drosophila pseudoobscura. The results suggest that females of D. pseudoobscura evolved increased sexual isolation from their sibling species, D. persimilis, by natural selection against maladaptive hybridization.