LOCALIZATION OF PHEROMONAL SEXUAL DIMORPHISM IN DROSOPHILA-MELANOGASTER AND ITS EFFECT ON SEXUAL ISOLATION

被引：73

作者：

COYNE, JA

OYAMA, R

机构：

[1] Department of Ecology and Evolution, University of Chicago, Chicago, IL 60637

[2] Dept. of Organismic and Evol. Biol., Harvard University, Cambridge, MA 02138

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 1995年 / 92卷 / 21期

关键词：

PHEROMONES; CUTICULAR HYDROCARBONS; REPRODUCTIVE ISOLATION; SPECIATION;

D O I：

10.1073/pnas.92.21.9505

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Drosophila melanogaster is sexually dimorphic for cuticular hydrocarbons, with males and females having strikingly different profiles of the long-chain compounds that act as contact pheromones. Gas-chromatographic analysis of sexual mosaics reveals that the sex specificity of hydrocarbons is located in the abdomen. This explains previous observations that D. melanogaster males display the strongest courtship toward mosaics with female abdomens. We also show that males of the sibling species Drosophila simulans preferentially court D. melanogaster mosaics with male abdomens. Because the primary male hydrocarbon in D. melanogaster is also the primary female hydrocarbon in D. simulans, this supports the idea that interspecific differences in cuticular hydrocarbons contribute to sexual isolation.

引用

页码：9505 / 9509

页数：5

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