A Database of Drosophila Genes & Genomes

FB2013_03, released May 7th, 2013
 

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Reference
Citation Turner, T.L., Stewart, A.D., Fields, A.T., Rice, W.R., Tarone, A.M. (2011). Population-Based Resequencing of Experimentally Evolved Populations Reveals the Genetic Basis of Body Size Variation in Drosophila melanogaster.  PLoS Genet. 7(3): e1001336. (Export to RIS)
FlyBase ID FBrf0213327
Publication Type Research paper
PubMed ID 21437274
PubMed Abstract Body size is a classic quantitative trait with evolutionarily significant variation within many species. Locating the alleles responsible for this variation would help understand the maintenance of variation in body size in particular, as well as quantitative traits in general. However, successful genome-wide association of genotype and phenotype may require very large sample sizes if alleles have low population frequencies or modest effects. As a complementary approach, we propose that population-based resequencing of experimentally evolved populations allows for considerable power to map functional variation. Here, we use this technique to investigate the genetic basis of natural variation in body size in Drosophila melanogaster. Significant differentiation of hundreds of loci in replicate selection populations supports the hypothesis that the genetic basis of body size variation is very polygenic in D. melanogaster. Significantly differentiated variants are limited to single genes at some loci, allowing precise hypotheses to be formed regarding causal polymorphisms, while other significant regions are large and contain many genes. By using significantly associated polymorphisms as a priori candidates in follow-up studies, these data are expected to provide considerable power to determine the genetic basis of natural variation in body size.
DOI 10.1371/journal.pgen.1001336
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Language of Publication English
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Publication Type Journal
Abbreviation PLoS Genet.
Title PLoS Genetics
Publication Year 2005-
ISBN/ISSN 1553-7404 1553-7390
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