Plant Molecular Biology

, Volume 29, Issue 3, pp 441–452

Athila, a new retroelement from Arabidopsis thaliana

  • T. Pélissier
  • S. Tutois
  • J. M. Deragon
  • S. Tourmente
  • S. Genestier
  • G. Picard
Research Article

DOI: 10.1007/BF00020976

Cite this article as:
Pélissier, T., Tutois, S., Deragon, J.M. et al. Plant Mol Biol (1995) 29: 441. doi:10.1007/BF00020976

Abstract

An analysis of Arabidopsis thaliana heterochromatic regions allowed the identification of a new family of retroelements called Athila. These 10.5 kb elements, representing ca. 0.3% of the genome, present several features of retrotransposons and retroviruses. Athila elements are flanked by 1.5 kb long terminal repeats (LTR) that are themselves bounded by 5 bp perfect inverted repeats. These LTRs start and end with the retroviral consensus 5′TG...CA3′ nucleotides. A putative tRNA-binding site and a polypurine tract are found adjacent to the 5′ and 3′ LTR respectively. The central domain is composed of two long open reading frames (ORFs) of 935 and 694 amino acids. Despite several indications of recent transposition activity, the translation of these ORFs failed to reveal significant homology with proteins associated to retrotransposition. We suggest that the Athila family could result from the transduction and dispersion of a cellular gene by a retrotransposon.

Key words

repetitive DNAretroviral elementheterochromatintransposon

Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • T. Pélissier
    • 1
  • S. Tutois
    • 1
  • J. M. Deragon
    • 1
  • S. Tourmente
    • 1
  • S. Genestier
    • 1
  • G. Picard
    • 1
  1. 1.URA CNRS 1940, BiomoveUniversité Blaise PascalAubière CedexFrance