000			02888nab a22003497a 4500
001			58141
003			MX-TxCIM
005			20240919021002.0
008			160304s2015 u |||p|op||| 00| 0 eng d
024	8		_ahttps://doi.org/10.1007/s11032-015-0317-2
040			_aMX-TxCIM
041			_aeng
100	1		_91843 _aRosewarne, G.M. _8INT3219 _gGlobal Wheat Program
245	1	0	_aDifferent QTLs are associated with leaf rust resistance in wheat between China and Mexico
260			_aDordrecht, Netherlands : _bSpringer, _c2015.
500			_aPeer review
520			_aThe wheat line 'Chapio' is resistant to leaf rust, caused by Puccinia triticinia, and was derived from a breeding programme that focuses on multi-genic resistance to provide durability. This line was crossed with the susceptible 'Avocet' to develop an F6 recombinant inbred line population. The population was phenotyped for leaf rust severity in two environments each in Mexico and China. There were significant differences in the loci providing resistance between the two intercontinental regions. The Lr34 locus had large effects in both Mexico and China, highlighting its importance in providing a basis for broad-spectrum resistance. The Lr46 locus on chromosome 1BL and a 3D locus had effects in Mexico but not in China. Presence of Sr2 was determined by the phenotypic marker of pseudo-black chaff and was mapped to chromosome 3BS. This region was associated with a QTL that had strong effects in China but no significant effect in Mexico, as did a locus on chromosome 4B. Seedling tests on the parents indicated that the 3B locus was not the complimentary gene Lr27, but the 4B locus was in the same position as Lr31 (or Lr12). Further investigations showed that these loci worked independently and additively in adult plants. Chapio was bred for quantitative, non-race-specific resistance under strong phenotypic selection for leaf rust in Mexico. It is interesting that different QTLs contribute to this resistance in another country, and these results suggest that environmental effects, as well as race specificity, can play a role in expression of resistance.
526			_aWHEAT CRP _bFP3 - Global partnership to accelerate genetic gain in farmers field
546			_aText in English
650		7	_aWheat _gAGROVOC _2 _91310
650		0	_91853 _aQuantitative Trait Loci
651		7	_91318 _aMexico _gAGROVOC
651		0	_93990 _aChina _gAGROVOC
700	1		_93991 _aLi, Z.F.
700	1		_aSingh, R.P. _gGlobal Wheat Program _8INT0610 _9825
700	1		_93992 _aYang, E.N.
700	1		_92073 _aHerrera-Foessel, S.
700	1		_aHuerta-Espino, J. _gGlobal Wheat Program _8CHUE01 _9397
773	0		_wu78961 _x1380-3743 _dDordrecht (Netherlands) : Springer _tMolecular Breeding _gv. 35, no. 127
856	4		_yAccess only for CIMMYT Staff _uhttp://libcatalog.cimmyt.org/Download/cis/58141.pdf
942			_2ddc _cJA
999			_c58141 _d58133