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Towards synthetic plant disease resistance (R) genes; construction and screening of large R gene libraries

Reference9810755
Principal Investigator / Supervisor Professor Jonathan Jones
Co-Investigators /
Co-Supervisors
Institution University of East Anglia
DepartmentSainsbury Laboratory
Funding typeResearch
Value (£) 138,538
StatusCompleted
TypeResearch Grant
Start date 01/01/1999
End date 01/02/2001
Duration25 months

Abstract

Plant disease resistance (R) genes confer resistance to pathogen races carrying corresponding avirulence (Avr) genes. Most R genes encode leucine rich repeat (LRR) proteins that are probably receptors for Avr-encoded ligands. R gene homologue sequence comparison reveals evolution by recombination between gene family members. Pronounced amino acid variability is observed in solvent exposed amino acids of a putative parallel beta sheet recognition surface. Using oligonucleotide mutagenesis and sexual PCR to promote in vitro recombination between R gene homologues, we will create libraries of R gene alleles and select synthetic R genes targeted to both defined and undefined pathogen ligands.

Summary

unavailable
Committee Closed Committee - Plant & Microbial Sciences (PMS)
Research TopicsX – not assigned to a current Research Topic
Research PriorityX – Research Priority information not available
Research Initiative ROPA 1998 (ROPA1998) [1998]
Funding SchemeX – not Funded via a specific Funding Scheme
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