000 03624nab a22004337a 4500
001 G90145
003 MX-TxCIM
005 20220509203336.0
008 210923s2007 gw |||p|op||| 00| 0 eng d
022 _a1432-2242 (Online)
022 _a0040-5752
024 8 _ahttps://doi.org/10.1007/s00122-007-0630-1
040 _aMX-TxCIM
041 _aeng
090 _aCIS-5110
100 0 _aGuo-Liang Jiang
_923035
245 1 0 _aQTL analysis of resistance to Fusarium head blight in the novel wheat germplasm CJ 9306. II. Resistance to deoxynivalenol accumulation and grain yield loss
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, not only causing dramatic decrease of grain yield and quality, but also leading to serious mycotoxin contamination in the infected grains. This study was conducted to identify and quantify quantitative trait loci (QTLs) contributing to resistance to deoxynivalenol (DON) accumulation as well as to grain yield loss in a population of 152 F7 recombinant inbred lines (RILs) derived from the cross Veery/CJ 9306. DON content in scabby grains and relative decreases of yield components were analyzed. Two new QTLs (QFhs.nau-2DL and QFhs.nau-1AS) for resistance to DON accumulation caused by FHB in wheat were detected, and QTLs QFhs.ndsu-3BS and QFhs.nau-5AS were also validated in CJ 9306, based on a constructed genetic linkage map. On the average of three experiments, major QTLs QFhs.ndsu-3BS and QFhs.nau-2DL explained up to 23 and 20% of phenotypic variation, respectively. QFhs.nau-1AS and QFhs.nau-5AS separately explained 4–6% of phenotypic variation. The differences among years/experiments were significant for all the four QTLs. However, the QTL × environment interaction was significant only for QFhs.nau-2DL, but not for the others. The results suggest that simple sequence repeat (SSR) markers Xgwm533b associated with QFhs.ndsu-3BS, and Xgwm539 associated with QFhs.nau-2DL could be used in marker-assisted selection to enhance resistance to DON accumulation. QFhs.ndsu-3BS + QFhs.nau-2DL and QFhs.nau-2DL + QFhs.nau-5AS would be the optimum choices for two-locus combinations. QFhs.ndsu-3BS was also validated in CJ 9306 for resistance to grain yield loss, explaining 8–15% of phenotypic variation. No QTLs for resistance to DON accumulation or grain yield loss independent of Type II resistance were found. By comparison, however, either of QFhs.nau-2DL or QFhs.nau-5AS alone and their combination were more contributive to resistance to DON accumulation than to Type II resistance.
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
_910042
_aVomitoxin
650 7 _2AGROVOC
_96242
_aYield losses
700 1 _95682
_aDong, Y.
700 0 _93912
_aJianrong Shi
700 1 _9856
_aWard, R.W.
_gGlobal Wheat Program
_8INT2733
773 0 _tTheoretical and Applied Genetics
_n634917
_gv. 115, no. 8, p. 1043-1052
_dBerlin (Germany) : Springer, 2007.
_wG444762
_x0040-5752
856 4 _yAccess only for CIMMYT Staff
_uhttps://hdl.handle.net/20.500.12665/1641
942 _cJA
_2ddc
_n0
999 _c26871
_d26871