Affiliation:
1. Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA.
Abstract
Comparison of the gene-expression profiles between adults of
Drosophila melanogaster
and
Drosophila simulans
has uncovered the evolution of genes that exhibit sex-dependent regulation. Approximately half the genes showed differences in expression between the species, and among these, ∼83% involved a gain, loss, increase, decrease, or reversal of sex-biased expression. Most of the interspecific differences in messenger RNA abundance affect male-biased genes. Genes that differ in expression between the species showed functional clustering only if they were sex-biased. Our results suggest that sex-dependent selection may drive changes in expression of many of the most rapidly evolving genes in the
Drosophila
transcriptome.
Publisher
American Association for the Advancement of Science (AAAS)
Cited by
556 articles.
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