000 03467nab a22004217a 4500
999 _c58137
_d58129
001 58137
003 MX-TxCIM
005 20240919021002.0
008 151020s2016 sz |||p|op||| 00| 0 eng d
024 8 _ahttps://doi.org/10.3389/fpls.2016.01674
040 _aMX-TxCIM
041 _aeng
100 1 _9764
_aHuihui Li
_gGenetic Resources Program
_8CLIH01
245 1 0 _aIdentification of genomic associations for adult plant resistance in the background of popular South Asian wheat cultivar, PBW343
_h[Electronic Resource]
260 _aSwitzerland :
_bFrontiers,
_c2016.
500 _aPeer review
500 _aOpen Access
520 _aRusts, a fungal disease as old as its host plant wheat, has caused havoc for over 8000 years. As the rust pathogens can evolve into new virulent races which quickly defeat the resistance that primarily rely on race specificity, adult plant resistance (APR) has often been found to be race non-specific and hence is considered to be a more reliable and durable strategy to combat this malady. Over decades sets of donor lines have been identified at International Maize and Wheat Improvement Center (CIMMYT) representing a wide range of APR sources in wheat. In this study, using nine donors and a common parent “PBW343,” a popular Green Revolution variety at CIMMYT, the nested association mapping (NAM) population of 1122 lines was constructed to understand the APR genetics underlying these founder lines. Thirty-four QTL were associated with APR to rusts, and 20 of 34 QTL had pleiotropic effects on SR, YR and LR resistance. Three chromosomal regions, associated with known APR genes (Sr58/Yr29/Lr46, Sr2/Yr30/Lr27, and Sr57/Yr18/Lr34), were also identified, and 13 previously reported QTL regions were validated. Of the 18 QTL first detected in this study, 7 were pleiotropic QTL, distributing on chromosomes 3A, 3B, 6B, 3D, and 6D. The present investigation revealed the genetic relationship of historical APR donor lines, the novel knowledge on APR, as well as the new analytical methodologies to facilitate the applications of NAM design in crop genetics. Results shown in this study will aid the parental selection for hybridization in wheat breeding, and envision the future rust management breeding for addressing potential threat to wheat production and food security.
546 _aText in English
591 _bCIMMYT Informa: 1987 (March 23, 2017)
650 7 _aWheat
_gAGROVOC
_2
_91310
650 7 _91853
_aQuantitative Trait Loci
_2AGROVOC
650 7 _aRusts
_gAGROVOC
_2
_91251
650 7 _aFood security
_gAGROVOC
_2
_91118
650 7 _92084
_aChromosome mapping
_2AGROVOC
650 7 _91313
_aYields
_2AGROVOC
700 1 _9892
_aSukhwinder-Singh
_8INT3098
_gGenetic Resources Program
700 1 _9867
_aBhavani, S.
_gGlobal Wheat Program
_8INT2843
700 1 _aSingh, R.P.
_gGlobal Wheat Program
_8INT0610
_9825
700 1 _9922
_aSehgal, D.
_8INT3332
_gGlobal Wheat Program
700 1 _aBasnet, B.R.
_gForlmerly Global Wheat Program
_gExcellence in Breeding
_8INT3524
_9967
700 1 _9785
_aVikram, P.
_8I1705725
_gGenetic Resources Program
700 1 _9907
_aBurgueño, J.
_gGenetic Resources Program
_8INT3239
700 1 _aHuerta-Espino, J.
_gGlobal Wheat Program
_8CHUE01
_9397
773 0 _wu56875
_x1664-462X
_dSwitzerland : Frontiers
_tFrontiers in Plant Science
_gv. 7, no. 1674, p. 1-18
856 4 _uhttp://hdl.handle.net/10883/18128
_yOpen Access through DSpace
942 _2ddc
_cJA
_n0