Tandem LTR-retrotransposon structures are common and highly polymorphic in plant genomes.

ABSTRACT:

Background

LTR-retrotransposons (LTR-RT) are a major component of plant genomes and important drivers of genome evolution. Most LTR-RT copies in plant genomes are defective elements found as truncated copies, nested insertions or as part of more complex structures. The recent availability of highly contiguous plant genome assemblies based on long-read sequences now allows to perform detailed characterization of these complex structures and to evaluate their importance for plant genome evolution.

Results

The detailed analysis of two rice loci containing complex LTR-RT structures showed that they consist of tandem arrays of LTR copies sharing internal LTRs. Our analyses suggests that these LTR-RT tandems are the result of a single insertion and not of the recombination of two

SUBMITTER: Morales-Diaz N 

PROVIDER: S-EPMC11899658 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature