Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Validation of microsatellite markers for cytotype discrimination in the model grass Brachypodium distachyon
Año:2012
Áreas de investigación
  • Producción vegetal
Datos
Descripción
Brachypodium distachyon (2n = 2x = 10) is a small annual grass species where the existence of three different cytotypes (10, 20 and 30 chromosomes) has long been regarded as a case of autopolyploid series, with x = 5. However, it has been demonstrated that the cytotypes assumed to be polyploids represent two separate Brachypodium species recently named as B. stacei (2n = 2x = 20) and B. hybridum (2n = 4x = 30). The aim of this study was to find a PCR-based alternative approach that could replace standard cytotyping methods (i. e., chromosome counting and flow cytometry) to characterize each of the three Brachypodium species. We have analyzed with four microsatellite (SSR) markers eighty-three Brachypodium distachyon-type lines from varied locations in Spain, including the Balearic and Canary Islands. Within this set of lines, 64, 4 and 15 had 10, 20 and 30 chromosomes, respectively. The surveyed markers produced cytotype-specific SSR profiles. So, a single amplification product was generated in the diploid samples, with non-overlapping allelic ranges between the 2n = 10 and 2n = 20 cytotypes, whereas two bands, one in the size range of each of the diploid cytotypes, were amplified in the 2n = 30 lines. Furthermore, the remarkable size difference obtained with the SSR ALB165 allowed the identification of the Brachypodium species by simple agarose gel electrophoresis.
Internacional
Si
JCR del ISI
Si
Título de la revista
Genome
ISSN
0831-2796
Factor de impacto JCR
1,662
Información de impacto
Datos JCR del año 2010
Volumen
DOI
Número de revista
55
Desde la página
523
Hasta la página
527
Mes
SIN MES
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Patricia Giraldo Carbajo (UPM)
  • Autor: Marta Rodriguez de Quijano Urquiaga (UPM)
  • Autor: Jose Francisco Vazquez Muñiz (UPM)
  • Autor: Jose Maria Carrillo Becerril (UPM)
  • Autor: Maria Elena Benavente Barzana (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Mejora Genética de plantas
  • Departamento: Biotecnología
S2i 2022 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)