High evolutionary turnover of satellite families in Caenorhabditis.

ABSTRACT:

Background

The high density of tandem repeat sequences (satellites) in nematode genomes and the availability of genome sequences from several species in the group offer a unique opportunity to better understand the evolutionary dynamics and the functional role of these sequences. We take advantage of the previously developed SATFIND program to study the satellites in four Caenorhabditis species and investigate these questions.

Methods

The identification and comparison of satellites is carried out in three steps. First we find all the satellites present in each species with the SATFIND program. Each satellite is defined by its length, number of repeats, and repeat sequence. Only satellites with at least ten repeats are considered. In the second step we build satellite familie

SUBMITTER: Subirana JA 

PROVIDER: S-EPMC4595182 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature