Terminal-Repeat Retrotransposons with GAG Domain in Plant Genomes: A New Testimony on the Complex World of Transposable Elements
Type | Article | ||||||||
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Date | 2015-02 | ||||||||
Language | English | ||||||||
Author(s) | Chaparro Cristian![]() ![]() |
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Affiliation(s) | 1 : Univ Perpignan, UMR5244 2El, CNRS, UMR Ecol & Evolut Interact 2El 5244, F-66025 Perpignan, France. 2 : UM2, IRD, CIRAD, UMR DIADE, Montpellier, France. 3 : CCB Univ Estadual Londrina UEL, Dept Biol Geral, Londrina, PR, Brazil. 4 : Univ Estadual Paulista, UNESP, Dept Bot, Inst Biociencias, Rio Claro, SP, Brazil. 5 : Univ Jean Lorougnon Guede, Daloa, Cote Ivoire. 6 : Notre Dame Oe, Nestle R&D Tours, Tours, France. 7 : IRD, UMR IPME, Montpellier, France. |
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Source | Genome Biology And Evolution (1759-6653) (Oxford Univ Press), 2015-02 , Vol. 7 , N. 2 , P. 493-504 | ||||||||
DOI | 10.1093/gbe/evv001 | ||||||||
WOS© Times Cited | 20 | ||||||||
Keyword(s) | nonautonomous elements, LTR-retrotransposons, GAG, conservation in plant genomes | ||||||||
Abstract | 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. |
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