English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/167604
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Contribution of mobile group II introns to Sinorhizobium meliloti genome evolution

AutorToro, Nicolás; Martínez-Abarca, Francisco; Molina-Sánchez, M.D.; García-Rodríguez, Fernando M.; Nisa Martínez, Rafael
Palabras claveCatalytic RNAs, Genome evolution, Intron, Insertion sequences, Retroelements, Rhizobia, Reverse transcriptase, Ribozymes
Fecha de publicación2018
EditorFrontiers Media
CitaciónFrontiers in Microbiology 9 (2018)
ResumenMobile group II introns are ribozymes and retroelements that probably originate from bacteria. Sinorhizobium meliloti, the nitrogen-fixing endosymbiont of legumes of genus Medicago, harbors a large number of these retroelements. One of these elements, RmInt1, has been particularly successful at colonizing this multipartite genome. Many studies have improved our understanding of RmInt1 and phylogenetically related group II introns, their mobility mechanisms, spread and dynamics within S. meliloti and closely related species. Although RmInt1 conserves the ancient retroelement behavior, its evolutionary history suggests that this group II intron has played a role in the short- and long-term evolution of the S. meliloti genome. We will discuss its proposed role in genome evolution by controlling the spread and coexistence of potentially harmful mobile genetic elements, by ectopic transposition to different genetic loci as a source of early genomic variation and by generating sequence variation after a very slow degradation process, through intron remnants that may have continued to evolve, contributing to bacterial speciation.
URIhttp://hdl.handle.net/10261/167604
Identificadoresdoi: 10.3389/fmicb.2018.00627
issn: 1664-302X
Aparece en las colecciones: (EEZ) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
2018_Toro_FM.pdf1,43 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.