|
|
Registro Completo |
Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
05/07/2019 |
Data da última atualização: |
09/06/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
LIMA L. P.; AZEVEDO, C. F.; RESENDE, M. D. V. de; SILVA, F. F. e; SUELA, M. M.; NASCIMENTO, M.; VIANA, J. M. S. |
Afiliação: |
Leísa Pires Lima, Universidade Federal de Viçosa; Camila Ferreira Azevedo, Universidade Federal de Viçosa; MARCOS DEON VILELA DE RESENDE, CNPF; Fabyano Fonseca e Silva, Universidade Federal de Viçosa; Matheus Massariol Suela, Universidade Federal de Viçosa; Moysés Nascimento, Universidade Federal de Viçosa; José Marcelo Soriano Viana, Universidade Federal de Viçosa. |
Título: |
New insights into genomic selection through population-based non-parametric prediction methods. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Scientia Agricicola, v. 76, n. 4, p. 290-298, July/Aug. 2019. |
DOI: |
10.1590/1678-992x-2017-0351 |
Idioma: |
Inglês |
Conteúdo: |
Genome-wide selection (GWS) is based on a large number of markers widely distributed throughout the genome. Genome-wide selection provides for the estimation of the effect of each molecular marker on the phenotype, thereby allowing for the capture of all genes
affecting the quantitative traits of interest. The main statistical tools applied to GWS are based
on random regression or dimensionality reduction methods. In this study a new non-parametric
method, called Delta-p was proposed, which was then compared to the Genomic Best Linear
Unbiased Predictor (G-BLUP) method. Furthermore, a new selection index combining the genetic
values obtained by the G-BLUP and Delta-p, named Delta-p/G-BLUP methods, was proposed.
The efficiency of the proposed methods was evaluated through both simulation and real studies. The simulated data consisted of eight scenarios comprising a combination of two levels of
heritability, two genetic architectures and two dominance status (absence and complete dominance). Each scenario was simulated ten times. All methods were applied to a real dataset of
Asian rice (Oryza sativa) aiming to increase the efficiency of a current breeding program. The
methods were compared as regards accuracy of prediction (simulation data) or predictive ability
(real dataset), bias and recovery of the true genomic heritability. The results indicated that the
proposed Delta-p/G-BLUP index outperformed the other methods in both prediction accuracy
and predictive ability. |
Palavras-Chave: |
Asian rice; Genetic gain; Genomic prediction. |
Thesagro: |
Arroz; Oryza Sativa. |
Thesaurus Nal: |
Selection index. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/199238/1/2019-M.Deon-SA-New-insights.pdf
|
Marc: |
LEADER 02306naa a2200277 a 4500 001 2110406 005 2020-06-09 008 2019 bl uuuu u00u1 u #d 024 7 $a10.1590/1678-992x-2017-0351$2DOI 100 1 $aLIMA L. P. 245 $aNew insights into genomic selection through population-based non-parametric prediction methods.$h[electronic resource] 260 $c2019 520 $aGenome-wide selection (GWS) is based on a large number of markers widely distributed throughout the genome. Genome-wide selection provides for the estimation of the effect of each molecular marker on the phenotype, thereby allowing for the capture of all genes affecting the quantitative traits of interest. The main statistical tools applied to GWS are based on random regression or dimensionality reduction methods. In this study a new non-parametric method, called Delta-p was proposed, which was then compared to the Genomic Best Linear Unbiased Predictor (G-BLUP) method. Furthermore, a new selection index combining the genetic values obtained by the G-BLUP and Delta-p, named Delta-p/G-BLUP methods, was proposed. The efficiency of the proposed methods was evaluated through both simulation and real studies. The simulated data consisted of eight scenarios comprising a combination of two levels of heritability, two genetic architectures and two dominance status (absence and complete dominance). Each scenario was simulated ten times. All methods were applied to a real dataset of Asian rice (Oryza sativa) aiming to increase the efficiency of a current breeding program. The methods were compared as regards accuracy of prediction (simulation data) or predictive ability (real dataset), bias and recovery of the true genomic heritability. The results indicated that the proposed Delta-p/G-BLUP index outperformed the other methods in both prediction accuracy and predictive ability. 650 $aSelection index 650 $aArroz 650 $aOryza Sativa 653 $aAsian rice 653 $aGenetic gain 653 $aGenomic prediction 700 1 $aAZEVEDO, C. F. 700 1 $aRESENDE, M. D. V. de 700 1 $aSILVA, F. F. e 700 1 $aSUELA, M. M. 700 1 $aNASCIMENTO, M. 700 1 $aVIANA, J. M. S. 773 $tScientia Agricicola$gv. 76, n. 4, p. 290-298, July/Aug. 2019.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Florestas (CNPF) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registros recuperados : 1 | |
1. | | LIMA L. P.; AZEVEDO, C. F.; RESENDE, M. D. V. de; SILVA, F. F. e; SUELA, M. M.; NASCIMENTO, M.; VIANA, J. M. S. New insights into genomic selection through population-based non-parametric prediction methods. Scientia Agricicola, v. 76, n. 4, p. 290-298, July/Aug. 2019.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Florestas. |
| |
Registros recuperados : 1 | |
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|