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Genetics
Article . 2007 . Peer-reviewed
License: OUP Standard Publication Reuse
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Genetics
Article
Data sources: UnpayWall
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Genetics
Article . 2008
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Evolution in the Fast Lane: Rapidly Evolving Sex-Related Genes in Drosophila

Authors: Haerty, W; Jagadeeshan, S; Kulathinal, R; Wong, A; Ravi Ram, K; Sirot, L; Levesque, L; +4 Authors

Evolution in the Fast Lane: Rapidly Evolving Sex-Related Genes in Drosophila

Abstract

Abstract A large portion of the annotated genes in Drosophila melanogaster show sex-biased expression, indicating that sex and reproduction-related genes (SRR genes) represent an appreciable component of the genome. Previous studies, in which subsets of genes were compared among few Drosophila species, have found that SRR genes exhibit unusual evolutionary patterns. Here, we have used the newly released genome sequences from 12 Drosophila species, coupled to a larger set of SRR genes, to comprehensively test the generality of these patterns. Among 2505 SRR genes examined, including ESTs with biased expression in reproductive tissues and genes characterized as involved in gametogenesis, we find that a relatively high proportion of SRR genes have experienced accelerated divergence throughout the genus Drosophila. Several testis-specific genes, male seminal fluid proteins (SFPs), and spermatogenesis genes show lineage-specific bursts of accelerated evolution and positive selection. SFP genes also show evidence of lineage-specific gene loss and/or gain. These results bring us closer to understanding the details of the evolutionary dynamics of SRR genes with respect to species divergence.

Related Organizations
Keywords

Male, Sex Characteristics, Models, Genetic, Reproduction, Ovary, Genes, Insect, Sex Determination Processes, Biological Evolution, Oogenesis, Testis, Animals, Drosophila Proteins, Drosophila, Female, Selection, Genetic, Spermatogenesis, Phylogeny

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
343
Top 1%
Top 1%
Top 1%
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