Recently Evolved Genes Identified From Drosophila yakuba and D. erecta Accessory Gland Expressed Sequence Tags

The fraction of the genome associated with male reproduction in Drosophila may be unusually dynamic. For example, male reproduction-related genes show higher-than-average rates of protein divergence and gene expression evolution compared to most Drosophila genes. Drosophila male reproduction may als...

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Published in:Genetics (Austin) 2006-03, Vol.172 (3), p.1675-1681
Main Authors: Begun, David J, Lindfors, Heather A, Thompson, Melissa E, Holloway, Alisha K
Format: Article
Language:English
Subjects:
Animals
Bacteriology
Cell Lineage - genetics
Drosophila - genetics
Drosophila erecta
Drosophila Proteins - genetics
Drosophila Proteins - metabolism
Drosophila simulans
Drosophila yakuba
Evolution, Molecular
Expressed Sequence Tags
Female
Genes
Genetics, Population
Genitalia, Male - metabolism
Genomics
Investigations
Male
Proteins
Species Specificity
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creator Begun, David J
Lindfors, Heather A
Thompson, Melissa E
Holloway, Alisha K
description The fraction of the genome associated with male reproduction in Drosophila may be unusually dynamic. For example, male reproduction-related genes show higher-than-average rates of protein divergence and gene expression evolution compared to most Drosophila genes. Drosophila male reproduction may also be enriched for novel genetic functions. Our earlier work, based on accessory gland protein genes (Acp's) in D. simulans and D. melanogaster, suggested that the melanogaster subgroup Acp's may be lost and/or gained on a relatively rapid timescale. Here we investigate this possibility more thoroughly through description of the accessory gland transcriptome in two melanogaster subgroup species, D. yakuba and D. erecta. A genomic analysis of previously unknown genes isolated from cDNA libraries of these species revealed several cases of genes present in one or both species, yet absent from ingroup and outgroup species. We found no evidence that these novel genes are attributable primarily to duplication and divergence, which suggests the possibility that Acp's or other genes coding for small proteins may originate from ancestrally noncoding DNA.
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source Freely Accessible Journals; Oxford Journals Online; Alma/SFX Local Collection
subjects Animals
Bacteriology
Cell Lineage - genetics
Drosophila - genetics
Drosophila erecta
Drosophila Proteins - genetics
Drosophila Proteins - metabolism
Drosophila simulans
Drosophila yakuba
Evolution, Molecular
Expressed Sequence Tags
Female
Genes
Genetics, Population
Genitalia, Male - metabolism
Genomics
Investigations
Male
Proteins
Species Specificity
title Recently Evolved Genes Identified From Drosophila yakuba and D. erecta Accessory Gland Expressed Sequence Tags
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