Transposable Elements versus the Fungal Genome: Impact on Whole-Genome Architecture and Transcriptional Profiles.

ABSTRACT: Transposable elements (TEs) are exceptional contributors to eukaryotic genome diversity. Their ubiquitous presence impacts the genomes of nearly all species and mediates genome evolution by causing mutations and chromosomal rearrangements and by modulating gene expression. We performed an exhaustive analysis of the TE content in 18 fungal genomes, including strains of the same species and species of the same genera. Our results depicted a scenario of exceptional variability, with species having 0.02 to 29.8% of their genome consisting of transposable elements. A detailed analysis performed on two strains of Pleurotus ostreatus uncovered a genome that is populated mainly by Class I elements, especially LTR-retrotransposons amplified in recent bursts from 0 to 2 million years (My) ago. The p

SUBMITTER: Castanera R 

PROVIDER: S-EPMC4905642 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature