Show simple item record Humphreys, Michael W. Durand, J. -E Humphreys, Janet Ghesquiere, Marc Rognli, O. A. Thomas, Huw M. Zwierzykowski, Zbigniew Rapacz, M. King, Ian P. Donnison, Iain S.
dc.contributor.editor Hopkins, A.
dc.contributor.editor Wang, Z. -. Y.
dc.contributor.editor Mian, R.
dc.contributor.editor Sledge, M.
dc.contributor.editor Barker, R. E. 2009-09-10T15:41:13Z 2009-09-10T15:41:13Z 2009-09-10
dc.identifier.citation Humphreys , M W , Durand , J -E , Humphreys , J , Ghesquiere , M , Rognli , O A , Thomas , H M , Zwierzykowski , Z , Rapacz , M , King , I P , Donnison , I S , Hopkins , A (ed.) , Wang , Z Y (ed.) , Mian , R (ed.) , Sledge , M (ed.) & Barker , R E (ed.) 2009 , ' Molecular breeding and functional genomics for tolerance to abiotic stress ' pp. 61-80 . en
dc.identifier.other PURE: 129637
dc.identifier.other dspace: 2160/3031
dc.description Humphreys, M. W., Humphreys, J., Donnison, I. S., King, I. P., Thomas, H. M., Guesquiere, M., Durand, J.-E., Rognli, O.-A., Zwierzykowski, Z., Rapacz, M. (2004). Molecular breeding and functional genomics for tolerance to abiotic stress.   Developments in Plant Breeding, Molecular Breeding of Forage and Turf. Proceedings 3rd International Symposium on Molecular Breeding of Forage and Turf, Dallas, Texas and Ardmore, Oklahoma, USA, 18-22 May 2003, Hopkins, A.Wang, Z-Y.Mian, R.Sledge, M.Barker, R. E., Vol 11, pp. 61-80 Key words: Lolium/Festuca - drought resistance - winter hardiness - introgression mapping - androgenesis - precision breeding en
dc.description.abstract Sustainability is a measure of our ability to produce food with the maximium of efficiency combined with the minimum of damage to the environment. Grasslands represent over 40% of all agricultural land in the European Union, and over 70% in the United Kingdom. Whilst Lolium in Europe is considered to be the ideal source of profitable and safe high quality animal forage, its general poor persistency limits its use to favourable growing areas. Fortunately, genes for abiotic stress resistance are transferred readily from closely related Festuca species by conventional breeding technologies. Introgression mapping allows the assembly of desirable gene combinations and molecular markers to assist with their selection in breeding programmes. Additional new androgenesis techniques have led to novel genotypes rarely observed as outcomes of breeding programmes. Lolium × Festuca hybrids display promiscuous chromosome recombination enabling genes from one species to be transferred readily to homoeologous chromosome regions where they both function normally and remain stable. Despite the close homology between Lolium and Festuca species, repetitive DNA sequences differ sufficiently for their genomes to be distinguished, by genomic in situ hybridisation (GISH). This enables the physical mapping of genes for abiotic stress resistance transferred from Festuca to Lolium. Further chromosome recombination between homoeologous Lolium and Festuca sequences enables Festuca introgressions to be ¿dissected¿, and recombination series created. Knowledge of synteny and gene sequences within model species amongst the Poaceae, combined with the development of sequenced molecular markers, and bacterial artificial chromosomes is enabling the isolation of genes for abiotic stress resistance. en
dc.format.extent 20 en
dc.language.iso eng
dc.relation.ispartof en
dc.title Molecular breeding and functional genomics for tolerance to abiotic stress en
dc.type Text en
dc.type.publicationtype Conference paper en
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Non peer reviewed en

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