Transcriptomics

Dataset Information

2

Novel male-biased expression in paralogs of the aphid slilmfast nutrient amino acid transporter expansion


ABSTRACT: A major goal of molecular evolutionary biology is to understand the fate and consequences of duplicated genes. In this context, aphids are particularly intriguing because the newly sequenced pea aphid genome is characterized by extraordinarily high levels of lineage-specific gene duplication relative to other insect genomes. While analyzing the results of a microarray comparing gene expression between male, sexual female and asexual female Myzus persicae aphids, we unexpectedly found duplicated nutrient amino acid transporters highly upregulated in males. These transporters, homologous to the Drosophila slimfast, belong to an aphid-specific gene family expansion in which other paralogs are thought to have functionally diverged to fill a role in mediating interactions between aphids and their nutrititonally required bacterial symbiont. The lack of a known male role for slimfast in other insects suggests that aphid slimfast paralogs have been retained as a result of functional divergence to fill multiple novel functional roles in symbiosis and in males. Two biological replicates, four treatments (males, asexual females at long day, asexual females at short day, sexual females), dye flip

ORGANISM(S): Myzus persicae  

SUBMITTER: Rebecca P Duncan   Rebecca Duncan  Alex C Wilson  Lubov Nathanson 

PROVIDER: E-GEOD-31024 | ArrayExpress | 2011-09-13

SECONDARY ACCESSION(S): GSE31024PRJNA144917

REPOSITORIES: GEO, ArrayExpress

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Novel male-biased expression in paralogs of the aphid slimfast nutrient amino acid transporter expansion.

Duncan Rebecca P RP   Nathanson Lubov L   Wilson Alex C C AC  

BMC evolutionary biology 20110914


BACKGROUND:A major goal of molecular evolutionary biology is to understand the fate and consequences of duplicated genes. In this context, aphids are intriguing because the newly sequenced pea aphid genome harbors an extraordinary number of lineage-specific gene duplications relative to other insect genomes. Though many of their duplicated genes may be involved in their complex life cycle, duplications in nutrient amino acid transporters appear to be associated rather with their essential amino  ...[more]

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