Award details

Genetics and mechanisms of resistance to facultative pathogens of cereals

Reference	BBS/E/J/00000606
Principal Investigator / Supervisor	Professor Paul Nicholson
Co-Investigators / Co-Supervisors
Institution	John Innes Centre
Department	John Innes Centre Department
Funding type	Research
Value (£)	2,045,638
Status	Completed
Type	Institute Project
Start date	01/05/2003
End date	31/03/2017
Duration	166 months

Abstract

This project involves the study of resistance to facultative pathogens associated with disease complexes of the stem-base and head of cereals. Emphasis is placed on study of the genetics and mechanisms of resistance to Fusarium species. Two forms of resistance have been proposed; Type I (resistance to initial infection) Type II (resistance to spread within the cereal head). While several sources of Type II resistance are known it has proved to be much more difficult to identify Type I resistance. We are developing methodologies to enable identification and characterising of Type I resistance. We are carrying out disease trials on populations produced with the above materials, combined with genetic mapping, to identify quantitative trait loci (QTL) associated with resistance. In addition, we are using the model plant species Arabidopsis thaliana to gain insight into potential signalling pathways important in host resistance. Results are translated into crop systems to determine whether these pathways also function in wheat and barley. This will provide candidate genes for exploitation by scientists and plant breeders. We are also investigating seedling and adult plant resistance to the stem-base disease eyespot, caused by two closely related species Oculimacula yallundae and O. acuformis. This work is combines the study of populations segregating for resistance with genetic mapping to identify markers associated with resistance and to produce markers suitable for use by plant breeders to follow resistance in their breeding programmes.

Summary

unavailable

Committee	Not funded via Committee
Research Topics	Crop Science, Microbiology, Plant Science
Research Priority	X – Research Priority information not available
Research Initiative	X - not in an Initiative
Funding Scheme	X – not Funded via a specific Funding Scheme

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