Genome-wide analysis of LTR-retrotransposon diversity and its impact on the evolution of the genus Helianthus (L.).

ABSTRACT:

Background

Genome divergence by mobile elements activity and recombination is a continuous process that plays a key role in the evolution of species. Nevertheless, knowledge on retrotransposon-related variability among species belonging to the same genus is still limited. Considering the importance of the genus Helianthus, a model system for studying the ecological genetics of speciation and adaptation, we performed a comparative analysis of the repetitive genome fraction across ten species and one subspecies of sunflower, focusing on long terminal repeat retrotransposons at superfamily, lineage and sublineage levels.

Results

After determining the relative genome size of each species, genomic DNA was isolated and subjected to Illumina sequencing. Then, different assembling a

SUBMITTER: Mascagni F 

PROVIDER: S-EPMC5563062 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature