Duplicate gene evolution, homoeologous recombination, and transcriptome characterization in allopolyploid cotton.

ABSTRACT:

Background

Modern allotetraploid cotton contains an "A" and "D" genome from an ancestral polyploidy event that occurred approximately 1-2 million years ago. Diploid A- and D-genome species can be compared to the A- and D-genomes found within these allotetraploids to make evolutionary inferences about polyploidy. In this paper we present a comprehensive EST assembly derived from diploid and model allotetraploid cottons and demonstrate several evolutionary inferences regarding genic evolution that can be drawn from these data.

Results

We generated a set of cotton expressed sequence tags (ESTs), comprising approximately 4.4 million Sanger and next-generation (454) transcripts supplemented by approximately 152 million Illumina reads from diploid and allotetraploid cottons. From

SUBMITTER: Flagel LE 

PROVIDER: S-EPMC3427041 | biostudies-literature | 2012 Jul

REPOSITORIES: biostudies-literature