000 03077nab a22003857a 4500
999 _c59300
_d59292
001 59300
003 MX-TxCIM
005 20240919020949.0
008 180226s2017 mdu|||p|op||| 00| 0 eng d
024 8 _ahttps://doi.org/10.1534/g3.117.042341
040 _aMX-TxCIM
041 _aeng
100 1 _96505
_aBandeira e Sousa, M.
245 1 0 _aGenomic-enabled prediction in maize using kernel models with genotype x environment interaction
260 _aBethesda, Maryland, U.S. :
_bGenetics Society of America,
_c2017.
500 _aPeer review
500 _aOpen Access
520 _aMulti-environment trials are routinely conducted in plant breeding to select candidates for the next selection cycle. In this study, we compare the prediction accuracy of four developed genomic-enabled prediction models: (1) single-environment, main genotypic effect model (SM); (2) multi-environment, main genotypic effects model (MM); (3) multi-environment, single variance G×E deviation model (MDs); and (4) multi-environment, environment-specific variance G×E deviation model (MDe). Each of these four models were fitted using two kernel methods: a linear kernel Genomic Best Linear Unbiased Predictor, GBLUP (GB), and a nonlinear kernel Gaussian kernel (GK). The eight model-method combinations were applied to two extensive Brazilian maize data sets (HEL and USP data sets), having different numbers of maize hybrids evaluated in different environments for grain yield (GY), plant height (PH), and ear height (EH). Results show that the MDe and the MDs models fitted with the Gaussian kernel (MDe-GK, and MDs-GK) had the highest prediction accuracy. For GY in the HEL data set, the increase in prediction accuracy of SM-GK over SM-GB ranged from 9 to 32%. For the MM, MDs, and MDe models, the increase in prediction accuracy of GK over GB ranged from 9 to 49%. For GY in the USP data set, the increase in prediction accuracy of SM-GK over SM-GB ranged from 0 to 7%. For the MM, MDs, and MDe models, the increase in prediction accuracy of GK over GB ranged from 34 to 70%. For traits PH and EH, gains in prediction accuracy of models with GK compared to models with GB were smaller than those achieved in GY. Also, these gains in prediction accuracy decreased when a more difficult prediction problem was studied.
526 _aMCRP
_bFP2
546 _aText in English
650 7 _92701
_aForecasting
_2AGROVOC
650 7 _91132
_aGenomics
_2AGROVOC
650 7 _aMaize
_gAGROVOC
_2
_91173
650 7 _91133
_aGenotype environment interaction
_2AGROVOC
700 1 _94437
_aCuevas, J.
700 1 _96506
_aDe Oliveira Couto, E.G.
700 1 _92703
_aPerez-Rodriguez, P.
700 1 _91934
_aJarquín, D.
700 1 _96507
_aFritsche-Neto, R.
700 1 _9907
_aBurgueño, J.
_gGenetic Resources Program
_8INT3239
700 1 _aCrossa, J.
_gGenetic Resources Program
_8CCJL01
_959
773 0 _gv. 7, no, 6, p. 1995-2014
_tG3: Genes, Genomes, Genetics
_wu56922
_x2160-1836
856 4 _yOpen Access through DSpace
_uhttps://hdl.handle.net/10883/19328
942 _2ddc
_cJA
_n0