Horizon 1 1 17 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES Genome Biology and Evolution 493-504 PLANTE CAFE ADN VARIABILITE GENETIQUE EVOLUTION RETROTRANSPOSON 2015 fdi:010063587 ENG Genome Biology and Evolution 1759-6653 ISI:000351607800007 2 10.1093/gbe/evv001 https://www.documentation.ird.fr/hor/fdi:010063587 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers15-03/010063587.pdf 7 Horizon (IRD) A novel structure of nonautonomous long terminal repeat (LTR) retrotransposons called terminal repeat with GAG domain (TR-GAG) has been described in plants, both in monocotyledonous, dicotyledonous and basal angiosperm genomes. TR-GAGs are relatively short elements in length (<4 kb) showing the typical features of LTR-retrotransposons. However, they carry only one open reading frame coding for the GAG precursor protein involved for instance in transposition, the assembly, and the packaging of the element into the virus-like particle. GAG precursors show similarities with both Copia and Gypsy GAG proteins, suggesting evolutionary relationships of TR-GAG elements with both families. Despite the lack of the enzymatic machinery required for their mobility, strong evidences suggest that TR-GAGs are still active. TR-GAGs represent ubiquitous nonautonomous structures that could be involved in the molecular diversities of plant genomes. 076AMEPLA UR232 / UR186 Brésil / Côte d'ivoire