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External factors accelerate expression divergence between duplicate genes.


ABSTRACT: We examined the evolution of expression of duplicate genes in Arabidopsis thaliana, by analyzing 512 data sets of gene expression microarrays and 2022 recent duplicate gene pairs. Expression divergence between gene duplicates is significantly greater in response to environmental stress than to developmental processes. A slow rate of expression divergence during development might offer dosage-dependent selective advantage, whereas rapid expression divergence in response to external changes might accelerate adaptation.

SUBMITTER: Ha M 

PROVIDER: S-EPMC2065749 | biostudies-literature | 2007 Apr

REPOSITORIES: biostudies-literature

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External factors accelerate expression divergence between duplicate genes.

Ha Misook M   Li Wen-Hsiung WH   Chen Z Jeffrey ZJ  

Trends in genetics : TIG 20070222 4


We examined the evolution of expression of duplicate genes in Arabidopsis thaliana, by analyzing 512 data sets of gene expression microarrays and 2022 recent duplicate gene pairs. Expression divergence between gene duplicates is significantly greater in response to environmental stress than to developmental processes. A slow rate of expression divergence during development might offer dosage-dependent selective advantage, whereas rapid expression divergence in response to external changes might  ...[more]

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