000			02881nam a22003737a 4500
001			G89998
003			MX-TxCIM
005			20211006082025.0
008			121211s ||||f| 0 p|p||0|| |
020			_a978-1-4020-5496-9
040			_aMX-TxCIM
090			_aCIS-5055
100	1		_aHays, D. _uWheat production in stressed environments. Proceedings of International Wheat Conference, 7; Mar de Plata (Argentina); 27 Nov - 2 Dec 2005
245	0	0	_aExpression quantitative trait loci mapping heat tolerance during reproductive development in wheat (Triticum aestivum)
260			_aDordrecht (Netherlands) _bSpringer : _c2007
300			_ap. 373-382
340			_aPrinted
490			_aDevelopments in Plant Breeding ; _v12
520			_aHigh temperature during reproductive development is a major limitation to wheat production and end-use quality in the Southern Great Plains (USA) and to wheat production in many environments worldwide. We have initiated a project to integrate genotypic (QTL), phenotypic and transcript level data to identify genes controlling reproductive stage heat tolerance in heat tolerant genotypes of wheat as it relates to yield and end-use quality maintenance. Efforts have initially focused on building recombinant inbred lines (RILs) and cDNA libraries enriched, through suppressive subtractive hybridization, for genes induced by heat stress. The selected tissues for library construction included wheat heads and flag leaves isolated from plants subjected to heat stress 10 days after pollination. A heat tolerant spring wheat cultivar ‘Halberd’, and a susceptible winter wheat cultivar Cutter were used as models to define the two adaptive responses to heat stress (heat avoidance (susceptible) and heat tolerance). Over 1,920 unique ESTs have been sequenced. These genes include some potential regulatory proteins, heat shock proteins and lipid-transfer proteins, as well as many novel genes that may belong to uncharacterized pathways involved in response to heat stress. For example, a lipid transfer protein and an alpha amylase inhibitor remained stable during heat shock in the heat-tolerant cultivar Halberd. These genes were also highly expressed in the most heat tolerant RILs but not in the most susceptible RILs. Expression-QTL mapping results will be presented which link QTLs controlling heat tolerance to their regulation of discrete sets of the plant transcriptome
536			_aGlobal Wheat Program
546			_aEnglish
593			_aLucia Segura
594			_aINT1511
595			_aCSC
653	0		_aheat tolerance
653	0		_aloci mapping
653	0		_aQTL
700	1		_aBuck, H.T.|Nisi, J.E.|Salomon, N. _eeds.
700	1		_aHwa Do, J., _ecoaut.
700	1		_aMason, E., _ecoaut.
700	1		_aMenz, M., _ecoaut.
700	1		_aReynolds, M.P. _gGlobal Wheat Program _8INT1511 _9831
942			_cPRO
999			_c10225 _d10225