Evolution of a mate recognition system after hybridization between two Drosophila species

Blows, M. W. (1998) Evolution of a mate recognition system after hybridization between two Drosophila species. American Naturalist, 151 6: 538-544. doi:10.1086/286139

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Author Blows, M. W.
Title Evolution of a mate recognition system after hybridization between two Drosophila species
Journal name American Naturalist   Check publisher's open access policy
ISSN 0003-0147
Publication date 1998
Sub-type Article (original research)
DOI 10.1086/286139
Open Access Status File (Publisher version)
Volume 151
Issue 6
Start page 538
End page 544
Total pages 7
Place of publication Chicago, IL, United States
Publisher University of Chicago Press
Language eng
Subject 06 Biological Sciences
Abstract I investigated the genetic relationship between male and female components of the mate recognition system and how this relationship influenced the subsequent evolution of the two traits, in a series of replicate populations of interspecific hybrids. Thirty populations of hybrids between Drosophila serrata and Drosophila birchii were established and maintained for 24 generations. At the fifth generation after hybridization, the mating success of hybrid individuals with the D. serrata parent was determined. The genetic correlation between male and female components of the male recognition system, as a consequence of pleiotropy or tight physical linkage, was found to be significant but low (r = 0.388). This result suggested that pleiotropy may play only a minor role in the evolution of mate recognition in this system. At the twenty-fourth generation after hybridization, the mating success of the hybrids was again determined. The evolution of male and female components was investigated by analyzing the direction of evolution of each hybrid line with respect to its initial position in relation to the genetic regression. Male and female components appeared to converge on a single equilibrium point, rather than evolving along trajectories with slope equal to the genetic regression, toward a line of equilibria.
Keyword Biodiversity Conservation
Ecology
Sexual Selection
Genetic Correlation
Pleiotropy
Hybridization
Drosophila Serrata
Drosophila Birchii
Sexual Selection
Genetic Correlations
Preferences
Speciation
Traits
Fisher
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 23 times in Thomson Reuters Web of Science Article | Citations
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Created: Mon, 13 Aug 2007, 10:28:23 EST