Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Arabidopsis thaliana as a model for the study of plant-virus co-evolution
Year:2010
Research Areas
  • Natural sciences and health sciences,
  • Plants and animal biology and ecology
Information
Abstract
Understanding plant¿virus coevolution requires wild systems in which there is no human manipulation of either host or virus. To develop such a system, we analysed virus infection in six wild populations of Arabidopsis thaliana in Central Spain. The incidence of five virus species with different life-styles was monitored during four years, and this was analysed in relation to the demography of the host populations. Total virus incidence reached 70 per cent, which suggests a role of virus infection in the population structure and dynamics of the host, under the assumption of a host fitness cost caused by the infection. Maximum incidence occurred at early growth stages, and co-infection with different viruses was frequent, two factors often resulting in increased virulence. Experimental infections under controlled conditions with two isolates of the most prevalent viruses, cauliflower mosaic virus and cucumber mosaic virus, showed that there is genetic variation for virus accumulation, although this depended on the interaction between host and virus genotypes. Comparison of QST-based genetic differentiations between both host populations with FST genetic differentiation based on putatively neutral markers suggests different selection dynamics for resistance against different virus species or genotypes. Together, these results are compatible with a hypothesis of plant¿virus coevolution.
International
Si
JCR
Si
Title
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
ISBN
0962-8436
Impact factor JCR
5,117
Impact info
Volume
365
10.1098/rstb.2010.0062
Journal number
From page
1983
To page
1995
Month
ENERO
Ranking
Participants
  • Autor: Jesus Israel Pagan Muñoz (UPM)
  • Autor: Aurora Fraile Perez (UPM)
  • Autor: Nuria Montes Casado (UPM)
  • Autor: Fernando Garcia-Arenal Rodriguez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Patología Vegetal
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)