GENETICS OF A PHEROMONAL DIFFERENCE CONTRIBUTING TO REPRODUCTIVE ISOLATION IN DROSOPHILA
GENETICS OF A PHEROMONAL DIFFERENCE CONTRIBUTING TO REPRODUCTIVE ISOLATION IN DROSOPHILA
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DOI：
10.1126/science.8073292
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发表时间：
1994-09-02
期刊：
影响因子：
56.9
通讯作者：
MAH, K
中科院分区：
文献类型：
--
作者：
COYNE, JA;CRITTENDEN, AP;MAH, K
虽然性隔离是物种形成的最重要原因之一，但其遗传基础在很大程度上是未知的。这里提出的证据表明，两个密切相关的果蝇物种之间的性别隔离很大程度上是由雌性角质层碳氢化合物的差异造成的。这种差异只映射到三条主要染色体中的一条，这意味着生殖隔离可能有一个相当简单的遗传基础。碳氢化合物对求偶的影响可能有助于解释许多果蝇物种之间普遍存在的性别隔离不对称。
Although sexual isolation is one of the most important causes of speciation, its genetic basis is largely unknown. Here evidence is presented that suggests that sexual isolation between two closely related species of Drosophila is largely caused by differences in female cuticular hydrocarbons. This difference maps to only one of the three major chromosomes, implying that reproductive isolation might have a fairly simple genetic basis. The effect of the hydrocarbons on courtship may help explain the ubiquitous asymmetry of sexual isolation between many pairs of Drosophila species.