No detectable genetic correlation between male and female mating frequency in the stalk eyed fly Cyrtodiopsis dalmanni.

Grant, CA, Chapman, T, Pomiankowski, A and Fowler, K (2005) No detectable genetic correlation between male and female mating frequency in the stalk eyed fly Cyrtodiopsis dalmanni. Heredity, 95. pp. 444-448. ISSN 1365-2540

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Abstract

There is much interest in explaining why female insects mate multiply. Females of the stalk-eyed fly Cyrtodiopsis dalmanni can mate several times each day in a lifetime which may span several months. There are many adaptive explanations, but one hypothesis that has received little rigorous empirical attention is that female multiple mating has evolved for non-adaptive reasons as a correlated response to selection for high male mating frequency rather than because of direct or indirect benefits accruing to females. We tested this hypothesis in stalk-eyed flies by measuring the mating frequency of females from lines that exhibited a direct response in males to artificial selection for increased ('high') and decreased ('low') male mating frequency. We found that the mating frequency of high-line females did not differ from that of low-line females. Hence, there was no support for a genetic correlation between male and female mating frequency in this species. Our study suggests that the genes which influence remating may not be the same in the sexes, and that females remate frequently in this species to gain as yet unidentified benefits.

Item Type: Article
Faculty \ School: Faculty of Science > School of Biological Sciences
Depositing User: EPrints Services
Date Deposited: 01 Oct 2010 13:38
Last Modified: 21 Apr 2020 19:56
URI: https://ueaeprints.uea.ac.uk/id/eprint/1210
DOI: 10.1038/sj.hdy.6800733

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