000			03737nab a22004697a 4500
001			G94595
003			MX-TxCIM
005			20230728214818.0
008			210706s2010 gw |||p|op||| 00| 0 eng d
022			_a1432-2242 (Online)
022			_a0040-5752
024	8		_ahttps://doi.org/10.1007/s00122-009-1173-4
040			_aMX-TxCIM
041			_aeng
090			_aCIS-6153
100	1		_aMcIntyre, C.L. _914205
245	1	0	_aMolecular detection of genomic regions associated with grain yield and yield-related components in an elite bread wheat cross evaluated under irrigated and rainfed conditions
260			_aBerlin (Germany) : _bSpringer, _c2010.
500			_aPeer review
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0040-5752
520			_aGrain yield and grain weight of wheat are often decreased by water-limitation in the north-eastern cropping belt of Australia. Based on knowledge that CIMMYT lines are well-adapted in this region, a recombinant inbred line (RIL) population between two elite CIMMYT bread wheats (Seri M82 and Babax) was evaluated under water-limited environments. Fourteen productivity traits were evaluated in 192 progeny in up to eight trials. For three aggregations of the environments (all, high yield or low yield), multiple quantitative trait loci (QTL) were detected, each explaining <15% of variation. Co-location of multiple trait QTL was greatest on linkage groups 1B-a, 1D-b, 4A-a, 4D-a, 6A-a, 6B-a, 7A-a and an unassigned linkage group. Two putative QTL (LOD > 3) from Seri (6D-b and UA-d) increased grain yield and co-located with a suggestive (2 < LOD < 3) and a putative QTL for increased stem carbohydrate content (WSC), respectively; the latter QTL also co-located with a putative anthesis QTL for earlier flowering. Both QTL were detected only in high yield (>4t ha−1) environments. A third increased grain yield QTL (7A-a) from Babax co-located with QTL for increased grain number. Six putative QTL increased grain weight and co-located with QTL for harvest index, grains per spike and spike number. Three putative QTL for increased grains per spike co-located with strong QTL for earlier flowering, increased grain weight and fewer spikes. A group of progeny that exceeded the mean grain yield and grain weight of commercial checks had an increased frequency of QTL for high WSC, large grain size, increased harvest index and greater height, but fewer stems, when compared to low yielding (20% less), low grain weight progeny. These findings were consistent with agronomic analyses of the germplasm and demonstrate that there should be opportunities to independently manipulate grain number and grain size which is typically difficult due to strong negative correlations.
536			_aGlobal Wheat Program
546			_aText in English
591			_aSpringer
594			_aINT3234|INT1511
650		7	_2AGROVOC _91313 _aYields
650		7	_2AGROVOC _91081 _aDrought stress
650		7	_2AGROVOC _91155 _aInbred lines
650		7	_2AGROVOC _99133 _aProgeny testing
650		7	_2AGROVOC _91853 _aQuantitative Trait Loci
650		7	_2AGROVOC _98629 _aField Experimentation
700	1		_aMathews, K. _93392
700	1		_aRattey, A.R. _912988
700	1		_aChapman, S. _9458
700	1		_aDrenth, J. _920934
700	1		_aGhaderi, M. _920935
700	1		_aReynolds, M.P. _gGlobal Wheat Program _8INT1511 _9831
700	1		_920826 _aShorter, R.
773	0		_tTheoretical and Applied Genetics _gv. 120, no. 3, p. 527-541 _dBerlin (Germany) : Springer, 2010. _wG444762 _x0040-5752
856	4		_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/632
942			_cJA _2ddc _n0
999			_c28306 _d28306