Phylogenetic pinpointing of a paleopolyploidy event within the flax genus (Linum) using transcriptomics.

ABSTRACT:

Background and aims

Cultivated flax (Linum usitatissimum) is known to have undergone a whole-genome duplication around 5-9 million years ago. The aim of this study was to investigate whether other whole-genome duplication events have occurred in the evolutionary history of cultivated flax. Knowledge of such whole-genome duplications will be important in understanding the biology and genomics of cultivated flax.

Methods

Transcriptomes of 11 Linum species were sequenced using the Illumina platform. The short reads were assembled de novo and the DupPipe pipeline was used to look for signatures of polyploidy events from the age distribution of paralogues. In addition, phylogenies of all paralogues were assembled within an estimated age window of interest. These phylogenies were

SUBMITTER: Sveinsson S 

PROVIDER: S-EPMC3962240 | biostudies-literature | 2014 Apr

REPOSITORIES: biostudies-literature