Diversity and evolution of the transposable element repertoire in arthropods with particular reference to insects.

ABSTRACT:

Background

Transposable elements (TEs) are a major component of metazoan genomes and are associated with a variety of mechanisms that shape genome architecture and evolution. Despite the ever-growing number of insect genomes sequenced to date, our understanding of the diversity and evolution of insect TEs remains poor.

Results

Here, we present a standardized characterization and an order-level comparison of arthropod TE repertoires, encompassing 62 insect and 11 outgroup species. The insect TE repertoire contains TEs of almost every class previously described, and in some cases even TEs previously reported only from vertebrates and plants. Additionally, we identified a large fraction of unclassifiable TEs. We found high variation in TE content, ranging from less than 6% in t

SUBMITTER: Petersen M 

PROVIDER: S-EPMC6327564 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature