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Warwick HRI, University of Warwick
Plant-Virus Interactions Group
Warwick (United Kingdom)

Current status: Associate Member - Application: 2008, 11 April - Admittance: 2008, 25 April

General data
Organization Group name Group size Web site Address Country Status
Warwick HRI, University of Warwick Plant-Virus Interactions Group 4 permanent
6 temporary
web site Warwick HRI,
University of Warwick,
Wellesbourne,
Warwick,
United Kingdom
United Kingdom University
Staff of the group
Interests of the group
Much of our research is focussed on plant-virus interactions, particularly Turnip mosaic virus-Brassica and Arabidopsis interactions. We are identifying, characterising and mapping natural plant resistance genes to Turnip mosaic virus (TuMV) and looking at how they recognise TuMV and how TuMV can overcome resistance. To date we have identified, characterised and mapped seven dominant resistance genes to TuMV in brassicas (TuRB01-TuRB06 and TuRB01b; Walsh and Jenner, 2002). We have identified the TuMV determinant of virulence / pathogenicity for five of these dominant resistance genes so far. More recently we have identified and characterised broad-spectrum resistance to TuMV and mapped a recessive (retr01) and a dominant (ConTR01) gene controlling the resistance (Rusholme et al., 2007). Currently we are confirming the identity of retr01 and ConTR01 and investigating the nature of their action.
We are also looking at virus-virus interactions and how these are mediated through the plant. One aspect relates to the use of mild isolates of viruses to protect plants against severe isolates (cross-protection). Another investigates the co-evolution of TuMV and wild brassica plant communities.
Viruses transmitted by fungi and similar organisms (protists). We have identified the virus Watercress yellow spot virus transmitted by Spongospora subterranea f.sp. nasturtii and have been working on those transmitted by Olpidium brassicae that cause lettuce big-vein disease. Control strategies for the vectors (by biological and chemical control and by using disinfectants) and natural plant resistance to the viruses (WYSV and big-vein) have been developed.
Publications
  • Walsh, J.A. and Jenner, C.E. (2002).
    Turnip mosaic virus and the quest for durable resistance.
    Molecular Plant Pathology 3, 289-300.
  • Rusholme, R.L., Higgins, E.E., Walsh, J.A. and Lydiate, D.J. (2007).
    Genetic control of broad-spectrum resistance to Turnip mosaic virus (TuMV) in Brassica rapa (Chinese cabbage).
    Journal of General Virology 88, 3177-3186.
  • Jenner, C.E., Wang, X., Tomimura, K., Ohshima, K., Ponz, F. and Walsh, J.A. (2003).
    The dual role of a potyvirus protein of Turnip mosaic virus as a symptom determinant and an avirulence determinant in brassicas.
    Molecular Plant-Microbe Interactions 16, 777-784.
  • Jenner, C.E., Wang, X., Ponz, F. and Walsh, J. A. (2002).
    A fitness cost for Turnip mosaic virus to overcome host resistance.
    Virus Research 86, 1-6.
  • Hunter, P.J., Jones, J.E. and Walsh, J.A. (2002).
    The involvement of Beet western yellows virus, Cauliflower mosaic virus and Turnip mosaic virus in internal disorders of stored white cabbage.
    Phytopathology 92, 816-826.