Expression pattern divergence of duplicated genes in rice.

ABSTRACT:

Background

Genome-wide duplication is ubiquitous during diversification of the angiosperms, and gene duplication is one of the most important mechanisms for evolutionary novelties. As an indicator of functional evolution, the divergence of expression patterns following duplication events has drawn great attention in recent years. Using large-scale whole-genome microarray data, we systematically analyzed expression divergence patterns of rice genes from block, tandem and dispersed duplications.

Results

We found a significant difference in expression divergence patterns for the three types of duplicated gene pairs. Expression correlation is significantly higher for gene pairs from block and tandem duplications than those from dispersed duplications. Furthermore, a significant

SUBMITTER: Li Z 

PROVIDER: S-EPMC2697655 | biostudies-literature | 2009 Jun

REPOSITORIES: biostudies-literature