000 | 04040nab|a22005057a|4500 | ||
---|---|---|---|
999 |
_c59907 _d59899 |
||
001 | 59907 | ||
003 | MX-TxCIM | ||
005 | 20240919021003.0 | ||
008 | 190115s2019||||gw |||p|op||||00||0|eng|d | ||
024 | 8 | _ahttps://doi.org/10.1007/s00122-018-3206-3 | |
040 | _aMX-TxCIM | ||
041 | _aeng | ||
100 | 1 |
_aJULIANA P. _8001710082 _gFormerly Global Wheat Program _gFormerly BISA _92690 |
|
245 | 1 |
_aIntegrating genomic-enabled prediction and high-throughput phenotyping in breeding for climate-resilient bread wheat _h[Electronic Resource] |
|
260 |
_aGermany : _bSpringer, _c2019. |
||
500 | _aPeer review | ||
500 | _aOpen Access | ||
520 | _aGenomic selection and high-throughput phenotyping (HTP) are promising tools to accelerate breeding gains for high-yielding and climate-resilient wheat varieties. Hence, our objective was to evaluate them for predicting grain yield (GY) in drought-stressed (DS) and late-sown heat-stressed (HS) environments of the International maize and wheat improvement center?s elite yield trial nurseries. We observed that the average genomic prediction accuracies using fivefold cross-validations were 0.50 and 0.51 in the DS and HS environments, respectively. However, when a different nursery/year was used to predict another nursery/year, the average genomic prediction accuracies in the DS and HS environments decreased to 0.18 and 0.23, respectively. While genomic predictions clearly outperformed pedigree-based predictions across nurseries, they were similar to pedigree-based predictions within nurseries due to small family sizes. In populations with some full-sibs in the training population, the genomic and pedigree-based prediction accuracies were on average 0.27 and 0.35 higher than the accuracies in populations with only one progeny per cross, indicating the importance of genetic relatedness between the training and validation populations for good predictions. We also evaluated the item-based collaborative filtering approach for multivariate prediction of GY using the green normalized difference vegetation index from HTP. This approach proved to be the best strategy for across-nursery predictions, with average accuracies of 0.56 and 0.62 in the DS and HS environments, respectively. We conclude that GY is a challenging trait for across-year predictions, but GS and HTP can be integrated in increasing the size of populations screened and evaluating unphenotyped large nurseries for stress?resilience within years. | ||
526 |
_aWC _cFP3 |
||
546 | _aText in English | ||
591 | _aGonzalez-Perez, L. : Not in IRS Staff list but CIMMYT Affiliation | ||
650 | 7 |
_2AGROVOC _91132 _aGenomics |
|
650 | 7 |
_2AGROVOC _93634 _aPhenotypes |
|
650 | 7 |
_aBreeding _gAGROVOC _2 _91029 |
|
650 | 7 |
_2AGROVOC _91048 _aClimatic factors |
|
650 | 7 |
_91265 _aSoft wheat _2AGROVOC |
|
650 | 7 |
_2AGROVOC _91045 _aClimate change |
|
650 | 7 |
_2AGROVOC _95030 _aResilience |
|
700 | 1 |
_aMontesinos-Lopez, O.A. _92700 |
|
700 | 1 |
_aCrossa, J. _gGenetic Resources Program _8CCJL01 _959 |
|
700 | 1 |
_aMondal, S. _gFormerly Global Wheat Program _8INT3211 _9904 |
|
700 | 1 |
_93850 _aGonzalez-Perez, L. |
|
700 | 1 |
_92092 _aPoland, J.A. |
|
700 | 1 |
_aHuerta-Espino, J. _gGlobal Wheat Program _8CHUE01 _9397 |
|
700 | 1 |
_92608 _aCrespo-Herrera, L.A. _gGlobal Wheat Program _8I1706538 |
|
700 | 1 |
_aVelu, G. _8INT2983 _9880 _gGlobal Wheat Program |
|
700 | 1 |
_9851 _aDreisigacker, S. _gGlobal Wheat Program _8INT2692 |
|
700 | 1 |
_aShrestha, S. _98259 |
|
700 | 1 |
_92703 _aPerez-Rodriguez, P. |
|
700 | 1 |
_aPinto Espinosa, F. _8I1707012 _gFormerly Global Wheat Program _94431 |
|
700 | 1 |
_aSingh, R.P. _gGlobal Wheat Program _8INT0610 _9825 |
|
773 | 0 |
_dGermany _gv. 132, no. 1, p. 177-194 _tTheoretical and Applied Genetics _wu444762 _x1432-2242 |
|
856 | 4 |
_uhttps://hdl.handle.net/10883/19787 _yOpen Access through DSpace |
|
942 |
_cJA _2ddc _n0 |