Large distribution and high sequence identity of a Copia-type retrotransposon in angiosperm families

Autor(es)

Dias, Elaine Silva ^{[1, 2]} ; Hatt, Clemence ^[1] ; Hamon, Serge ^[1] ; Hamon, Perla ^[1] ; Rigoreau, Michel ^[3] ; Crouzillat, Dominique ^[3] ; Carareto, Claudia Marcia Aparecida ^[2] ; de Kochko, Alexandre ^[1] ; Guyot, Romain ^[4]

Afiliação do(s) autor(es)

^[1] EVODYN, IRD UMR DIADE, F-34394 Montpellier 5 - France

^[2] Univ Estadual Paulista, UNESP, Dept Biol, Araraquara, SP - Brazil

^[3] Nestle R&D Tours, F-37097 Tours 2 - France

^[4] IRD, UMR IPME, F-34394 Montpellier 5 - France

• Tipo de documento: Artigo Científico
• Fonte: Plant Molecular Biology; v. 89, n. 1-2, p. 83-97, SEP 2015.
• Citações Web of Science: 4

Resumo

Retrotransposons are the main component of plant genomes. Recent studies have revealed the complexity of their evolutionary dynamics. Here, we have identified Copia25 in Coffea canephora, a new plant retrotransposon belonging to the Ty1-Copia superfamily. In the Coffea genomes analyzed, Copia25 is present in relatively low copy numbers and transcribed. Similarity sequence searches and PCR analyses show that this retrotransposon with LTRs (Long Terminal Repeats) is widely distributed among the Rubiaceae family and that it is also present in other distantly related species belonging to Asterids, Rosids and monocots. A particular situation is the high sequence identity found between the Copia25 sequences of Musa, a monocot, and Ixora, a dicot species (Rubiaceae). Our results reveal the complexity of the evolutionary dynamics of the ancient element Copia25 in angiosperm, involving several processes including sequence conservation, rapid turnover, stochastic losses and horizontal transfer. (AU)

• Processo FAPESP: 11/18226-0 - Análise da diversidade e expressão de retrotransposons ativos em espécies de Coffea
• Beneficiário: Elaine Silva Dias
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 13/15070-4 - Mobilômica integrada em Coffea e seu inseto praga mais importante: a broca-do-café
• Beneficiário: Claudia Marcia Aparecida Carareto
• Modalidade de apoio: Auxílio à Pesquisa - Regular