Levels of mate recognition within and between two Drosophila species and their hybrids

Blows, M. W. and Allan, R. A. (1998) Levels of mate recognition within and between two Drosophila species and their hybrids. American Naturalist, 152 6: 826-837. doi:10.1086/286211

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Author Blows, M. W.
Allan, R. A.
Title Levels of mate recognition within and between two Drosophila species and their hybrids
Journal name American Naturalist   Check publisher's open access policy
ISSN 0003-0147
Publication date 1998
Sub-type Article (original research)
DOI 10.1086/286211
Open Access Status File (Publisher version)
Volume 152
Issue 6
Start page 826
End page 837
Total pages 12
Place of publication Chicago, IL, United States
Publisher University of Chicago Press
Language eng
Subject 06 Biological Sciences
Abstract If sexual selection is to result in speciation, traits involved in mate choice within species need to be capable of producing sexual isolation between species. We investigated the association between mate choice and sexual isolation using interspecific hybrids between two sibling species, Drosophila serrata and Drosophila birchii. A perfuming experiment demonstrated that olfaction was involved in the sexual isolation between the two species. A quantitative genetic analysis using 30 populations of hybrids between the two species indicated that mating success in hybrid individuals was predominately determined by cuticular hydrocarbons; the average genetic correlation between mating success and cuticular hydrocarbon profile was 0.84, and in some instances exceeded 0.95. Multivariate analysis of the cuticular hydrocarbons of the two species revealed that there were three independent blends of cuticular hydrocarbons that separated three levels of organization: species, sex, and sex within species. The hydrocarbons used by hybrids in mate choice included those that separated the two species, demonstrating that species-specific characters may be used in mate choice within populations. The interspecific reciprocal cross had a major effect on which cuticular hydrocarbons were associated with mating success, indicating that the expression of the cuticular hydrocarbons was strongly sex linked.
Keyword Biodiversity Conservation
Sexual Isolation
Mate Choice
Cuticular Hydrocarbons
Drosophila Serrata
Drosophila Birchii
Sexual Selection
Cuticular Hydrocarbons
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Biological Sciences Publications
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Citation counts: TR Web of Science Citation Count  Cited 116 times in Thomson Reuters Web of Science Article | Citations
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Created: Mon, 13 Aug 2007, 10:47:18 EST