000			03679nab a22004097a 4500
001			G90188
003			MX-TxCIM
005			20220509201856.0
008			210923s2007 gw |||p|op||| 00| 0 eng d
022			_a1432-2242 (Online)
022			_a0040-5752
024	8		_ahttps://doi.org/10.1007/s00122-007-0641-y
040			_aMX-TxCIM
041			_aeng
090			_aCIS-5122
100	0		_aGuo-Liang Jiang _923035
245	0	0	_aQTL analysis of resistance to Fusarium head blight in the novel wheat germplasm CJ 9306. I. Resistance to fungal spread
260			_aBerlin (Germany) : _bSpringer, _c2007.
340			_aComputer File|Printed
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			_aFusarium head blight (FHB or scab) caused by Fusarium species is a destructive disease in wheat and barley worldwide. The objectives of our study were to identify quantitative trait loci (QTLs) for resistance to FHB spread (Type II resistance) and to quantify the magnitude of their effects in a novel highly resistant wheat germplasm, CJ 9306. A set of 152 F7 recombinant inbred lines (RILs) derived from a cross Veery/CJ 9306 and two parents were evaluated for FHB resistance by single-floret inoculation in three greenhouse experiments in 2002 and 2004. Percentage (PSS) and number (NSS) of scabby spikelets at 25 days post-inoculation were analyzed. In total 682 simple sequence repeat (SSR) markers were screened for polymorphism between the two parents, and a genetic linkage map was constructed with 208 polymorphic markers. Ten QTLs associated with FHB resistance were detected, five from CJ 9306 and five from Veery. The major QTL on 3BS (QFhs.ndsu–3BS) was validated in CJ 9306, exhibiting greatest additive effects and explained 30.7% of phenotypic variation for PSS on the overall average of three experiments. Another major QTL on 2DL (QFhs.nau–2DL) from CJ 9306 explained 9.9–28.4% of phenotypic variation, with a significant QTL × environment interaction. QFhs.nau–1AS and QFhs.nau-7BS showed lower additive effects and explained lower variance (4.5–9.5%). A QTL on 5AS, decreasing PSS by 10.3% on average, was validated by simple marker analysis and joint trait/experiment IM/CIM analysis despite insignificance for single-experiment IM and CIM analyses. Likewise, QFhs.nau-2BL and QFhs.nau-1BC from Veery could reduce PSS by 13.2 and 11.4%, respectively. The effects of other three minor QTLs from Veery were significant for one experiment and combined analysis. Comparisons of two- and three-locus combinations suggested that the effects of FHB resistance QTLs/genes could be accumulated, and the resistance could be feasibly enhanced by selection of favorable alleles for multiple loci. Four two-locus combinations and two three-locus combinations were suggested as the preferential choices in practical marker-assisted selection program.
536			_aGlobal Wheat Program
546			_aText in English
591			_aSpringer
594			_aINT2733
650		7	_2AGROVOC _92705 _aFusarium
650		7	_2AGROVOC _95348 _aBlight
650		7	_2AGROVOC _91853 _aQuantitative Trait Loci
650		7	_2AGROVOC _91077 _aDisease resistance
650		7	_2AGROVOC _91155 _aInbred lines
700	0		_aJianrong Shi _93912
700	1		_9856 _aWard, R.W. _gGlobal Wheat Program _8INT2733
773	0		_tTheoretical and Applied Genetics _n634957 _gv. 116, no. 1, p. 3-13 _dBerlin (Germany) : Springer, 2007. _wG444762 _x0040-5752
856	4		_yAccess only for CIMMYT Staff _uhttps://hdl.handle.net/20.500.12665/1642
942			_cJA _2ddc _n0
999			_c26900 _d26900