Document Detail

Autosomal variation for male body size and sperm competition phenotypes is uncorrelated in Drosophila melanogaster.
MedLine Citation:
PMID:  18577499     Owner:  NLM     Status:  MEDLINE    
Correlations between male body size and phenotypes impacting post-copulatory sexual selection are commonly observed during the manipulation of male body size by environmental rearing conditions. Here, we control for environmental influences and test for genetic correlations between natural variation in male body size and phenotypes affecting post-copulatory sexual selection in Drosophila melanogaster. Dry weights of virgin males from 90 second-chromosome and 88 third-chromosome substitution lines were measured. Highly significant line effects (p<0.001) documented a genetic basis to variation in male body size. No significant correlations were identified between male body size and the components of sperm competitive ability. These results suggest that natural autosomal variation for male body size has little impact on post-copulatory sexual selection. If genetic correlations exist between male body size and post-copulatory sexual selection then variation in the sex chromosomes are likely candidates, as might be expected if sexually antagonistic coevolution was responsible.
Rui Zhang; Linda Amah; Anthony C Fiumera
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Biology letters     Volume:  4     ISSN:  1744-9561     ISO Abbreviation:  Biol. Lett.     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-09-10     Completed Date:  2008-11-06     Revised Date:  2013-06-05    
Medline Journal Info:
Nlm Unique ID:  101247722     Medline TA:  Biol Lett     Country:  England    
Other Details:
Languages:  eng     Pagination:  500-3     Citation Subset:  IM    
Department of Biological Sciences, Binghamton University, Vestal Parkway East, PO Box 6000, Binghamton, NY 13902, USA.
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MeSH Terms
Body Size*
Drosophila melanogaster / physiology*
Genetic Variation
Inheritance Patterns*
Selection, Genetic
Spermatozoa / physiology*

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