Duplicate gene expression in allopolyploid Gossypium reveals two temporally distinct phases of expression evolution.

ABSTRACT:

Background

Polyploidy has played a prominent role in shaping the genomic architecture of the angiosperms. Through allopolyploidization, several modern Gossypium (cotton) species contain two divergent, although largely redundant genomes. Owing to this redundancy, these genomes can play host to an array of evolutionary processes that act on duplicate genes.

Results

We compared homoeolog (genes duplicated by polyploidy) contributions to the transcriptome of a natural allopolyploid and a synthetic interspecific F1 hybrid, both derived from a merger between diploid species from the Gossypium A-genome and D-genome groups. Relative levels of A- and D-genome contributions to the petal transcriptome were determined for 1,383 gene pairs. This comparison permitted partitioning of homoe

SUBMITTER: Flagel L 

PROVIDER: S-EPMC2330141 | biostudies-literature | 2008 Apr

REPOSITORIES: biostudies-literature