000 03456nab|a22005297a|4500
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003 MX-TxCIM
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008 202311s2023||||mx |||p|op||||00||0|eng|d
022 _a0040-5752
022 _a1432-2242 (Online)
024 8 _ahttps://doi.org/10.1007/s00122-023-04481-0
040 _aMX-TxCIM
041 _aeng
100 0 _aXiaowan Xu
_926394
245 1 0 _aMolecular identification and validation of four stable QTL for adult-plant resistance to powdery mildew in Chinese wheat cultivar Bainong 64
260 _bSpringer Verlag,
_c2023.
_aBerlin (Germany) :
500 _aPeer review
520 _aWheat powdery mildew, caused by Blumeria graminis f. sp. tritici (Bgt), is a devastating fungal disease. Seedlings of Chinese wheat Bainong 64 are susceptible to Bgt, but adult plants have maintained resistance since it was released in 1996. A population of 171 recombinant inbred lines (RILs) developed from cross Jingshuang 16/Bainong 64 (JS16/BN64) was used to dissect genetic components of powdery mildew resistance. A genetic map comprising 5383 polymorphic markers was constructed using the 15 K SNP chip and kompetitive allele-specific PCR (KASP) markers. Composite interval mapping identified four stable QTL with favorable alleles all from BN64 on chromosome arms 1DL, 2BS, 2DL, and 6BL in at least four environments. They accounted for 8.3%, 13.8%, 14.4%, and 9.0% of the total phenotypic variation explained (PVE) in maximum, respectively. QPmjbr.caas-1DL, situated about 22 Mb from centromere, is probably a new QTL. QPmjbr.caas-2DL located near the end of arm 2DL and explained the largest PVE. Using genetic maps populated with KASP markers, QPmjbr.caas-2BS and QPmjbr.caas-6BL were fine mapped to a 1.8 cM genetic intervals spanning 13.6 Mb (76.0-89.6 Mb) and 1.7 cM and 4.9 Mb (659.9-664.8 Mb), respectively. The four QTL independent of stripe rust and leaf rust resistance were validated for powdery mildew resistance in another RIL population related to BN64 and a cultivar panel using representative KASP markers. Since BN64 has been a leading cultivar and an important breeding parent in China, the QTL and markers reported in this study will be useful for marker-assisted selection of APR.
546 _aText in English
591 _aJiankang Wang : No CIMMYT Affiliation
591 _aYuanfeng Hao : No CIMMYT Affiliation
650 7 _2AGROVOC
_91853
_aQuantitative Trait Loci
650 7 _2AGROVOC
_95953
_aPowdery mildews
650 7 _2AGROVOC
_91310
_aWheat
650 7 _2AGROVOC
_91077
_aDisease resistance
650 7 _2AGROVOC
_922057
_aGenotyping
700 0 _aDaojie Sun
_933465
700 0 _aZhongqiu Ni
_930422
700 0 _aXinyu Zou
_933466
700 0 _aXiaoting Xu
_910966
700 0 _aMengjing Sun
_919597
700 0 _aQiang Cao
_916526
700 0 _aJingyang Tong
_919596
700 0 _aFugong Ding
_933467
700 0 _aYelun Zhang
_91855
700 0 _aFengju Wang
_911073
700 0 _aYachao Dong
_930420
700 1 _aLuyan Zhang
_91387
700 1 _aJiankang Wang
_8INT2542
_9842
_gGenetic Resources Program
700 0 _aXianchun Xia
_9377
700 1 _aHe Zhonghu
_8INT2411
_9838
_gGlobal Wheat Program
700 1 _aYuanfeng Hao
_8INT3329
_9919
_gGlobal Wheat Program
773 0 _tTheoretical and Applied Genetics
_gv. 136, no. 11, art. 232
_dBerlin (Germany) : Springer Verlag, 2023.
_x0040-5752
_wG444762
942 _cJA
_n0
_2ddc
999 _c67340
_d67332