Gene duplication and evolution in recurring polyploidization-diploidization cycles in plants.

ABSTRACT:

Background

The sharp increase of plant genome and transcriptome data provide valuable resources to investigate evolutionary consequences of gene duplication in a range of taxa, and unravel common principles underlying duplicate gene retention.

Results

We survey 141 sequenced plant genomes to elucidate consequences of gene and genome duplication, processes central to the evolution of biodiversity. We develop a pipeline named DupGen_finder to identify different modes of gene duplication in plants. Genes derived from whole-genome, tandem, proximal, transposed, or dispersed duplication differ in abundance, selection pressure, expression divergence, and gene conversion rate among genomes. The number of WGD-derived duplicate genes decreases exponentially with increasing age of dup

SUBMITTER: Qiao X 

PROVIDER: S-EPMC6383267 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature