Diversity and structure of PIF/Harbinger-like elements in the genome of Medicago truncatula.

ABSTRACT:

Background

Transposable elements constitute a significant fraction of plant genomes. The PIF/Harbinger superfamily includes DNA transposons (class II elements) carrying terminal inverted repeats and producing a 3 bp target site duplication upon insertion. The presence of an ORF coding for the DDE/DDD transposase, required for transposition, is characteristic for the autonomous PIF/Harbinger-like elements. Based on the above features, PIF/Harbinger-like elements were identified in several plant genomes and divided into several evolutionary lineages. Availability of a significant portion of Medicago truncatula genomic sequence allowed for mining PIF/Harbinger-like elements, starting from a single previously described element MtMaster.

Results

Twenty two putative autonomous, i.

SUBMITTER: Grzebelus D 

PROVIDER: S-EPMC2213677 | biostudies-literature | 2007 Nov

REPOSITORIES: biostudies-literature