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Projects

Projects: Summary of Projects by Funding Source
Projects awarded by BBSRC involving University of York : BB/E007007/1
Reference Number BB/E007007/1
Title Accelerating breeding for biomass yield in short rotation coppice willow by exploiting knowledge of shoot development in Arabidopsis
Status Completed
Energy Categories Renewable Energy Sources(Bio-Energy, Production of other biomass-derived fuels (incl. Production from wastes)) 100%;
Research Types Basic and strategic applied research 100%
Science and Technology Fields BIOLOGICAL AND AGRICULTURAL SCIENCES (Agriculture, Veterinary and Food Science) 100%
UKERC Cross Cutting Characterisation Not Cross-cutting 100%
Principal Investigator Professor H M O Leyser
Biology
University of York
Award Type Standard
Funding Source BBSRC
Start Date 01 December 2006
End Date 31 May 2012
Duration 66 months
Total Grant Value £489,890
Industrial Sectors Power
Region Yorkshire & Humberside
Programme BBSRC Energy Grants
 
Investigators Principal Investigator Professor H M O Leyser , Biology, University of York
Web Site
Objectives Objectives not supplied
Abstract The UK Government is committed to increasing renewable energy and reducing greenhouse gas emissions and the contribution of biomass crops has been recognised. Willows are among the most advanced biomass crops. They are grown as short-rotation coppice (SRC), in which planted cuttings are cut back after one year and the cut stumps (stools) allowed to re-sprout. The coppice shoots are harvested 3 years later and the SRC cycle continued for 20 years. To be economic, sufficiently high yields are essential from only minimal inputs and yield improvement is the main objective of the Defra-funded SRC genetic improvement network BEGIN. Robust yield QTL have been identified but there is little understanding of the genetic control of underlying developmental processes. Diversity occurs among willows in coppicing ability but the genetic basis of this is not known. Willows with more thin stems and with few thick stems can both produce high yield. Yield-related traits of stem diameter and heightdonot co-associate with the same QTL as shoot number, suggesting these may be under separate control. Limited studies indicate that coppicing ability relates to the number, position and outgrowth of pre- existing buds kept dormant by apical dominance. In Arabidopsis the regulation of bud formation and activity is well investigated and evidence exists for conservation of regulatory mechanisms. Our preliminary research showed that MAX genes, which affect shoot branching in Arabidopsis, and TCP whichaffects branching in maize, map to willow yield QTL which co-associate with stem diameter and height. Using genetics and developmental studies, this project will test: (i) that MAX and TCP are involved in regulating bud behaviour in coppicing (ii) that bud number and behaviour are under separate control (iii) that, through Arabidopsis, other genes influencing coppicing can be identified and (iv) that the identification of genes for coppicing can accelerate breeding for high biomass yield.
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Added to Database 13/12/07