Characterization and potential evolutionary impact of transposable elements in the genome of Cochliobolus heterostrophus.

ABSTRACT:

Background

Cochliobolus heterostrophus is a dothideomycete that causes Southern Corn Leaf Blight disease. There are two races, race O and race T that differ by the absence (race O) and presence (race T) of ~ 1.2-Mb of DNA encoding genes responsible for the production of T-toxin, which makes race T much more virulent than race O. The presence of repetitive elements in fungal genomes is considered to be an important source of genetic variability between different species.

Results

A detailed analysis of class I and II TEs identified in the near complete genome sequence of race O was performed. In total in race O, 12 new families of transposons were identified. In silico evidence of recent activity was found for many of the transposons and analyses of expressed sequence tags (ES

SUBMITTER: Santana MF 

PROVIDER: S-EPMC4112212 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature