The role of transposable elements in the evolution of non-mammalian vertebrates and invertebrates.

ABSTRACT:

Background

Transposable elements (TEs) have played an important role in the diversification and enrichment of mammalian transcriptomes through various mechanisms such as exonization and intronization (the birth of new exons/introns from previously intronic/exonic sequences, respectively), and insertion into first and last exons. However, no extensive analysis has compared the effects of TEs on the transcriptomes of mammals, non-mammalian vertebrates and invertebrates.

Results

We analyzed the influence of TEs on the transcriptomes of five species, three invertebrates and two non-mammalian vertebrates. Compared to previously analyzed mammals, there were lower levels of TE introduction into introns, significantly lower numbers of exonizations originating from TEs and a lower pe

SUBMITTER: Sela N 

PROVIDER: S-EPMC2911107 | biostudies-literature | 2010

REPOSITORIES: biostudies-literature