000			03543nab a22004577a 4500
001			G95763
003			MX-TxCIM
005			20240919020946.0
008			210806s2011 at |||p|op||| 00| 0 eng d
022			_a1836-5795 (Online)
022	0		_a1836-0947
024	8		_ahttps://doi.org/10.1071/CP10318
040			_aMX-TxCIM
041			_aeng
090			_aCIS-6488
100	1		_aMathews, K. _93392
245	1	0	_aIndirect selection using reference and probe genotype performance in multi-environment trials
260			_aVictoria (Australia) : _bCSIRO Publishing, _c2011.
500			_aPeer review
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=1836-0947
520			_aThere is a substantial challenge in identifying appropriate cultivars from databases for introduction into a breeding program. We propose an indirect selection procedure that illustrates how strategically designed multi-environment trials, linked to historical performance databases, can identify germplasm to meet objectives of plant breeding programs. Two strategies for indirect selection of germplasm from the International Wheat and Maize Improvement Center?s (CIMMYT) trial database were developed based on reference and probe genotype sets included in the International Adaptation Trial (IAT). The IAT was designed to improve the understanding of relationships among global spring wheat (Triticum spp.) locations. Grain yield (t/ha) data were collated from 183 IAT trials grown in 40 countries (including Australia) between 2001 and 2004. The reference genotype set strategy used the genetic correlations among locations in the IAT to identify locations similar to a target environment. For a key southern Australian breeding location, Roseworthy, the number of cultivars targeted for selection was reduced to 35% of the original 1252. The Irrigated Winter Cereals Trials (2008?09) aimed to identify high yield potential lines in south-eastern Australian irrigated environments. Thirty-five CIMMYT cultivars identified using the reference genotype selection strategy were grown in this trial series. In all trials, the proportion of CIMMYT cultivars in the top 20% yielding lines exceeded the expected proportion, 0.20. The probe genotype strategy utilised contrasting line yield responses to assess the occurrence of soil-borne stresses such as root lesion nematode (Pratylenchus thorneii) and boron toxicity. For these stresses, the number of targeted cultivars was reduced to 25% and 83% of the original 1252, respectively.
536			_aGenetic Resources Program
546			_aText in English
591			_aCIMMYT Informa No. 1780|CSIRO|CSIRO
594			_aINT3234|CCJL01|INT1422
595			_aCSC
650		7	_aEnvironmental factors _2AGROVOC _94558
650		7	_aGenotype environment interaction _2AGROVOC _91133
650		7	_aSelection responses _2AGROVOC _911015
700	1		_9341 _aTrethowan, R.M.
700	1		_921914 _aMilgate, A.W.
700	1		_aPayne, T.S. _gFormerly Genetic Resources Program _8INT1422 _9828
700	1		_997 _aGinkel, M. Van
700	1		_aCrossa, J. _gGenetic Resources Program _8CCJL01 _959
700	1		_91427 _aDeLacy, I.H.
700	1		_96595 _aCooper, M.
700	1		_9458 _aChapman, S.
773	0		_tCrop and Pasture Science _gv. 62, no. 4, p. 313-327 _dVictoria (Australia) : CSIRO Publishing, 2011. _wG91570 _x1836-0947
856	4		_uhttps://hdl.handle.net/20.500.12665/272 _yAccess only for CIMMYT Staff
942			_cJA _2ddc _n0
999			_c28749 _d28749