Effect of the Legume Plant Host on Rhizobial Soil Population Dynamics

Soenens, Amalia; Jorrin, Beatriz y Imperial Ródenas, Juan (2014). Effect of the Legume Plant Host on Rhizobial Soil Population Dynamics. En: "Workshop: Genomics of prokaryotes, Handling the data analysis bottleneck. Glimpses at Pan -Genomes", 05/11/2014-07/11/2014, Valencia, Spain. p. 1.

Descripción

Título: Effect of the Legume Plant Host on Rhizobial Soil Population Dynamics
Autor/es:
  • Soenens, Amalia
  • Jorrin, Beatriz
  • Imperial Ródenas, Juan
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: Workshop: Genomics of prokaryotes, Handling the data analysis bottleneck. Glimpses at Pan -Genomes
Fechas del Evento: 05/11/2014-07/11/2014
Lugar del Evento: Valencia, Spain
Título del Libro: Genomics of prokaryotes, handling the data analysis bottleneck. Glimpses at Pan - Genomes
Fecha: 2014
Materias:
Escuela: Centro de Investigación en Biotecnología y Genómica de Plantas (CBGP) (UPM)
Departamento: Otro
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Rhizobium leguminosarum bv viciae (Rlv) is a soil bacterium able to establish specific root-nodule symbioses with legumes of four different genera: Pisum, Vicia, Lens and Lathyrus. Rlv isolates from nodules of any of these legumes can nodulate any of them; however, it has been shown that plants select specific rhizobial genotypes from those present in the soil (1,2). We have previously shown this at the genomic level by following a population genomics approach. Pool genomic sequences from 100 isolates from each of four plant species: P. sativum, L. culinaris, V. faba and V. sativa, show different, specific profiles at the single nucleotide polymorphism (SNP) level for relevant genes. In this work, the extent of Rlv selection from a well-characterized soil population by different legume plant hosts: P. sativum, L. culinaris, V. faba and V. sativa, after a medium-term mesocosm study is described. Direct soil isolates from each of these mesocosm studies have been tested for specific rhizobial genes (glnII and fnrN) and symbiotic genes (nodC and nifH). Different populations were characterized further by Sanger sequencing of both the rpoB phylogenetic marker gene and the symbiotic genes nodC and nifH. The distribution and size of the rhizobial population for each legume host showed changes during the medium-term mesocosm study. Particularly, a non-symbiotic group of rhizobia was enriched by all four hosts, in contrast to the symbiotic rhizobia profile, which was specific for each legume plant host.

Más información

ID de Registro: 39275
Identificador DC: http://oa.upm.es/39275/
Identificador OAI: oai:oa.upm.es:39275
URL Oficial: http://fisabio.san.gva.es/web/fisabio/evento/-/asset_publisher/u2EU/content/workshop-genomica
Depositado por: Memoria Investigacion
Depositado el: 13 May 2016 15:02
Ultima Modificación: 13 May 2016 15:02
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