Comparative genomic and transcriptomic analysis of tandemly and segmentally duplicated genes in rice.

ABSTRACT: Tandem and segmental duplications significantly contribute to gene family expansion and genome evolution. Genome-wide identification of tandem and segmental genes has been analyzed before in several plant genomes. However, comparative studies in functional bias, expression divergence and their roles in species domestication are still lacking. We have carried out a genome-wide identification and comparative analysis of tandem and segmental genes in the rice genome. A total of 3,646 and 3,633 pairs of tandem and segmental genes, respectively, were identified in the genome. They made up around 30% of total annotated rice genes (excluding transposon-coding genes). Both tandem and segmental duplicates showed different physical locations and exhibited a biased subset of functions. These two type

SUBMITTER: Jiang SY 

PROVIDER: S-EPMC3656045 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature