Award details

Dissecting Vernalization in Brassica

Reference	BBS/E/J/000C0625
Principal Investigator / Supervisor	Dr Judith Irwin
Co-Investigators / Co-Supervisors
Institution	John Innes Centre
Department	John Innes Centre Department
Funding type	Research
Value (£)	635,214
Status	Completed
Type	Institute Project
Start date	01/04/2008
End date	31/03/2017
Duration	107 months

Abstract

The UK has a strong base in flowering time research, especially in the control of vernalization. From the work of Caroline Dean at the John Innes Centre, and others, much is now known about the genetic pathways regulating vernalization in the model plant Arabidopsis thaliana. The aim of this programme is to identify the genes controlling vernalization in Brassica and exploit this information to develop tools to speed up the breeding in Brassica vegetable crops. We will exploit the continually expanding genomic resources in Brassica to map paralogues of key Arabidopsis genes involved in the control of flowering with a focus on known vernalization genes. We will use Brassica: Arabidopsis synteny to identify putative candidates underlying QTL mapped under different temperature x time treatments. Identification of candidate genes for selected QTL will be confirmed by functional analysis including co-segregation of alleles with maturity phenotypes in backcross progeny together with complementation tests in appropriate Arabidopsis mutants. We will demonstrate the generality of our findings by analysing allelic variation in a wide range of germplasm including the Defra funded Diversity Fixed Foundation Sets (DFFS) for B.oleracea and the wild C genome being produced at Warwick HRI. Allelic variation will be related to performance under past and present weather patterns. We will use the UKCP scenarios, and in particular the Weather generator, to model future growing conditions. We will link past and current variety performance to inform future breeding strategies for continuity of production.

Summary

unavailable

Committee	Not funded via Committee
Research Topics	Crop Science, 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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