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003 MX-TxCIM
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008 200910s2021||||sz |||p|op||||00||0|eng|d
022 _a2223-7747 (Online)
024 8 _ahttps://doi.org/10.3390/plants10050973
040 _aMX-TxCIM
041 _aeng
100 1 _aGahtyari, N.C.
_919447
245 1 0 _aIdentification of QTLs for spot blotch resistance in two bi-parental mapping populations of wheat
260 _aBasel (Switzerland) :
_bMDPI,
_c2021.
500 _aPeer review
500 _aOpen Access
520 _aSpot blotch (SB) disease caused by the hemibiotrophic pathogen Bipolaris sorokiniana inflicting major losses to the wheat grown in warm and highly humid areas of the Indian subcontinent, including Bangladesh, necessitates identification of QTLs stably expressing in Indian subcontinent conditions. Thus, two RIL mapping populations, i.e., WC (WUYA × CIANO T79) and KC (KATH × CIANO T79), were phenotyped at Dinajpur, Bangladesh for three consecutive years (2013-2015) and genotyped on a DArTseq genotyping by sequencing (GBS) platform at CIMMYT, Mexico. In both populations, quantitative inheritance along with transgressive segregation for SB resistance was identified. The identified QTLs were mostly minor and were detected on 10 chromosomes, i.e., 1A, 1B, 2A, 2B, 2D, 4B, 4D, 5A, 5D, and 7B. The phenotypic variation explained by the identified QTLs ranged from 2.3–15.0%, whereby QTLs on 4B (13.7%) and 5D (15.0%) were the largest in effect. The identified QTLs upon stacking showed an additive effect in lowering the SB score in both populations. The probable presence of newly identified Sb4 and durable resistance gene Lr46 in the identified QTL regions indicates the importance of these genes in breeding for SB resistance in Bangladesh and the whole of South Asia.
526 _aWC
_cFP3
546 _aText in English
650 7 _2AGROVOC
_91296
_aTriticum aestivum
650 7 _2AGROVOC
_92193
_aCochliobolus sativus
650 7 _2AGROVOC
_91853
_aQuantitative Trait Loci
650 7 _aDisease resistance
_2AGROVOC
_91077
700 1 _919446
_aRoy, C.
700 1 _9913
_aXinyao He
_8INT3297
_gGlobal Wheat Program
700 1 _915566
_aRoy, K.K.
700 1 _919834
_aReza, M.M.A.
700 1 _91894
_aHakim, M.A.
700 1 _92695
_aMalaker, P.K.
700 1 _9873
_aJoshi, A.K.
_8INT2917
_gGlobal Wheat Program
700 1 _aPawan Kumar Singh
_gGlobal Wheat Program
_8INT2868
_9868
773 0 _tPlants
_gv. 10, no. 5, art. 973
_dBasel (Switzerland) : MDPI, 2021.
_x2223-7747
856 4 _yOpen Access through DSpace
_uhttps://hdl.handle.net/10883/21505
942 _cJA
_n0
_2ddc
999 _c63698
_d63690