Observatorio de I+D+i UPM

Memorias de investigación
Conferences:
Understanding plant-virus co-evolution for a better control of plant viral diseases
Year:2013
Research Areas
  • Phytopathology,
  • Viral pathogens of plants,
  • Crop production
Information
Abstract
Viruses are an important group of plant pathogens, second only to fungi for the number of diseases they cause and for their economic impact. In addition, viruses are the major group of emergent pathogens of crops. The only direct, and the most efficient, way to control viral diseases in crops is the use of genetic resistance. The use of resistance is a preferred method for the control of plant pathogens, as it is highly efficient, target-specific and environmental-friendly. These important advantages of resistance are countered by the ability of pathogens to evolve and overcome the protection conferred by resistance factors after their extensive development in crop cultivars. Hence, much effort has been devoted to understand the evolution of virulence in plant viruses, and of defences in host plants, as related to the success and durability of this control strategy. A part of this effort has resulted in a wealth of theoretical studies on plant-pathogen co-evolution under different ecological and genetic scenarios. However, the abundance of theoretical studies has not been followed by a similar amount of experimental analyses. This is particularly the case for plant viruses. Viruses differ from cellular plant pathogens by their higher mutation rates, on one hand, but also by encoding few multifunctional proteins in their small genomes, in which epistasis is important, and these traits of their genetic architecture may condition their evolutionary potential. Hence, work done with cellular plant pathogens is difficult to extrapolate to viruses, and plant-virus co-evolution remains largely underexplored. Indeed, it has been proposed that virus infection would have little or no impact on wild plant populations, and that the high virulence of viruses in crops is the result of ecological changes associated to agriculture. If this were the case, plants would not develop defences against virus infection, and plants and viruses would not co-evolve.
International
Si
00-0000-00
Entity
Entity Nationality
COREA DEL SUR
Place
Sunchon National University
Participants
  • Autor: Aurora Fraile Perez (UPM)
  • Autor: Jean Michel Hily (UPM)
  • Autor: Jesus Israel Pagan Muñoz (UPM)
  • Autor: Luis Fernandez Pacios (UPM)
  • Autor: Fernando Garcia-Arenal Rodriguez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Patología Vegetal
  • Centro o Instituto I+D+i: Centro de Biotecnología y Genómica de Plantas, CBGP
  • Grupo de Investigación: Biotecnología de Proteínas Vegetales
  • Departamento: Biotecnología
S2i 2019 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)