000 03048nab|a22003617a|4500
999 _c59490
_d59482
001 59490
003 MX-TxCIM
005 20240919020950.0
008 180425s2018||||xxu|||p|op||||00||0|eng|d
024 8 _ahttps://doi.org/10.1534/g3.117.300454
040 _aMX-TxCIM
041 _aeng
100 1 _94437
_aCuevas, J.
245 1 0 _aGenomic-enabled prediction Kernel models with random intercepts for multi-environment trials
_h[Electronic Resource]
260 _aBethesda, Md, U.S. :
_bGenetics Society of America,
_c2018.
500 _aPeer review
500 _aOpen Access
520 _aIn this study, we compared the prediction accuracy of the main genotypic effect model (MM) without G×E interactions, the multi-environment single variance G×E deviation model (MDs), and the multienvironment environment-specific variance G×E deviation model (MDe) where the random genetic effects of the lines are modeled with the markers (or pedigree). With the objective of further modeling the genetic residual of the lines, we incorporated the random intercepts of the lines (l) and generated another three models. Each of these 6 models were fitted with a linear kernel method (Genomic Best Linear Unbiased Predictor, GB) and a Gaussian Kernel (GK) method. We compared these 12 model-method combinations with another two multi-environment G×E interactions models with unstructured variance-covariances (MUC) using GB and GK kernels (4 model-method). Thus, we compared the genomic-enabled prediction accuracy of a total of 16 model-method combinations on two maize data sets with positive phenotypic correlations among environments, and on two wheat data sets with complex G×E that includes some negative and close to zero phenotypic correlations among environments. The two models (MDs and MDE with the random intercept of the lines and the GK method) were computationally efficient and gave high prediction accuracy in the two maize data sets. Regarding the more complex G×E wheat data sets, the prediction accuracy of the model-method combination with G×E, MDs and MDe, including the random intercepts of the lines with GK method had important savings in computing time as compared with the G×E interaction multi-environment models with unstructured variance-covariances but with lower genomic prediction accuracy.
546 _aText in English
650 7 _91168
_aKernels
_2AGROVOC
650 7 _aMaize
_gAGROVOC
_2
_91173
650 7 _91133
_aGenotype environment interaction
_2AGROVOC
650 7 _91132
_aGenomics
_2AGROVOC
700 1 _97519
_aGranato, I.
700 1 _96507
_aFritsche-Neto, R.
700 1 _aMontesinos-Lopez, O.A.
_92700
700 1 _9907
_aBurgueño, J.
_gGenetic Resources Program
_8INT3239
700 1 _96505
_aBandeira e Sousa, M.
700 1 _aCrossa, J.
_gGenetic Resources Program
_8CCJL01
_959
773 0 _tG3: Genes, Genomes, Genetics
_gv. 8, no. 4, p. 1347-1365
_dG3, 2018
_x2160-1836 (Online)
_wu56922
856 4 _yOpen Access through DSpace
_uhttps://hdl.handle.net/10883/19499
942 _cJA
_n0
_2ddc