Evolutionary dynamics of the LTR-retrotransposon crapaud in the Podospora anserina species complex and the interaction with repeat-induced point mutations.

ABSTRACT:

Background

The genome of the filamentous ascomycete Podospora anserina shows a relatively high abundance of retrotransposons compared to other interspersed repeats. The LTR-retrotransposon family crapaud is particularly abundant in the genome, and consists of multiple diverged sequence variations specifically localized in the 5' half of both long terminal repeats (LTRs). P. anserina is part of a recently diverged species-complex, which makes the system ideal to classify the crapaud family based on the observed LTR variation and to study the evolutionary dynamics, such as the diversification and bursts of the elements over recent evolutionary time.

Results

We developed a sequence similarity network approach to classify the crapaud repeats of seven genomes representing the P.

SUBMITTER: Westerberg I 

PROVIDER: S-EPMC10787394 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature