Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Te evolution of virulence and pathogenicity in plant pathogen populations
Año:2008
Áreas de investigación
  • Producción vegetal
Datos
Descripción
The term virulence has a conflicting history among plant pathologists. Here we define virulence as the degree of damage caused to a host by parasite infection, assumed to be negatively correlated with host fitness, and pathogenicity the qualitative capacity of a parasite to infect and cause disease on a host. Selection may act on both virulence and pathogenicity, and their change in parasite populations can drive parasite evolution and host¿parasite co-evolution. Extensive theoretical analyses of the factors that shape the evolution of pathogenicity and virulence have been reported in last three decades. Experimental work has not followed the path of theoretical analyses. Plant pathologists have shown greater interest in pathogenicity than in virulence, and our understanding of the molecular basis of pathogenicity has increased enormously. However, little is known regarding the molecular basis of virulence. It has been proposed that the mechanisms of recognition of parasites by hosts will have consequences for the evolution of pathogenicity, but much experimental work is still needed to test these hypotheses. Much theoretical work has been based on evidence from cellular plant pathogens. We review here the current experimental and observational evidence on which to test heoretical hypotheses or conjectures. We compare evidence from viruses and cellular pathogens, mostly fungi and oomycetes, which differ widely in genomic complexity and in parasitism. Data on the evolution of pathogenicity and virulence from viruses and fungi show important differences, and their comparison is necessary to establish the generality of hypotheses on pathogenicity and virulence evolution.
Internacional
Si
JCR del ISI
Si
Título de la revista
MOLECULAR PLANT PATHOLOGY
ISSN
1464-6722
Factor de impacto JCR
3,385
Información de impacto
Volumen
9
DOI
Número de revista
3
Desde la página
369
Hasta la página
384
Mes
ENERO
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Fernando Garcia-Arenal Rodriguez (UPM)
  • Autor: Soledad Sacristan Benayas (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Patología Vegetal
  • Departamento: Biotecnología
  • Centro o Instituto I+D+i: Centro de Biotecnología y Genómica de Plantas, CBGP
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