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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
03/12/2019 |
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Data da última atualização: |
03/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ANDRADE, L. R. B. de; SOUSA, M. B. e; OLIVEIRA, E. J. de; RESENDE, M. D. V. de; AZEVEDO, C. F. |
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Afiliação: |
Luciano Rogério Braatz de Andrade, UFV; Massaine Bandeira e Sousa, Universidade Federal do Recôncavo da Bahia; EDER JORGE DE OLIVEIRA, CNPMF; MARCOS DEON VILELA DE RESENDE, CNPF; Camila Ferreira Azevedo, UFV. |
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Título: |
Cassava yield traits predicted by genomic selection methods. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
PLoS One, v. 14, n. 11, e0224920, Nov. 2019. 22 p. |
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DOI: |
10.1371/journal.pone.0224920 |
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Idioma: |
Inglês |
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Conteúdo: |
Genomic selection (GS) has been used to optimize genetic gains when phenotypic selection is considered costly and difficult to measure. The objective of this work was to evaluate the efficiency and consistency of GS prediction for cassava yield traits (Manihot esculenta Crantz) using different methods, taking into account the effect of population structure. BLUPs and deregressed BLUPs were obtained for 888 cassava accessions and evaluated for fresh root yield, dry root yield and dry matter content in roots in 21 trials conducted from 2011 to 2016. The deregressed BLUPs obtained for the accessions from a 48K single nucleotide polymorphism dataset were used for genomic predictions based on the BayesB, BLASSO, RR-BLUP, G-BLUP and RKHS methods. The accessions? BLUPs were used in the validation step using four cross-validation strategies, taking into account population structure and different GS methods. Similar estimates of predictive ability and bias were identified for the different genomic selection methods in the first cross-validation strategy. Lower predictive ability was observed for fresh root yield (0.4569 ?RR-BLUP to 0.4756?RKHS) and dry root yield (0.4689 ?G-BLUP to 0.4818?RKHS) in comparison with dry matter content (0.5655 ? BLASSO to 0.5670 ?RKHS). However, the RKHS method exhibited higher efficiency and consistency in most of the validation scenarios in terms of prediction ability for fresh root yield and dry root yield. The correlations of the genomic estimated breeding values between the genomic selection methods were quite high (0.99?1.00), resulting in high coincidence of clone selection regardless of the genomic selection method. The deviance analyses within and between the validation clusters formed by the discriminant analysis of principal components were significant for all traits. Therefore, this study indicated that i) the prediction of dry matter content was more accurate compared to that of yield traits, possibly as a result of the smaller influence of non-additive genetic effects; ii) the RKHS method resulted in high and stable prediction ability in most of the validation scenarios; and iii) some kinship between the validation and training populations is desirable in order for genomic selection to succeed due to the significant effect of population structure on genomic selection predictions. MenosGenomic selection (GS) has been used to optimize genetic gains when phenotypic selection is considered costly and difficult to measure. The objective of this work was to evaluate the efficiency and consistency of GS prediction for cassava yield traits (Manihot esculenta Crantz) using different methods, taking into account the effect of population structure. BLUPs and deregressed BLUPs were obtained for 888 cassava accessions and evaluated for fresh root yield, dry root yield and dry matter content in roots in 21 trials conducted from 2011 to 2016. The deregressed BLUPs obtained for the accessions from a 48K single nucleotide polymorphism dataset were used for genomic predictions based on the BayesB, BLASSO, RR-BLUP, G-BLUP and RKHS methods. The accessions? BLUPs were used in the validation step using four cross-validation strategies, taking into account population structure and different GS methods. Similar estimates of predictive ability and bias were identified for the different genomic selection methods in the first cross-validation strategy. Lower predictive ability was observed for fresh root yield (0.4569 ?RR-BLUP to 0.4756?RKHS) and dry root yield (0.4689 ?G-BLUP to 0.4818?RKHS) in comparison with dry matter content (0.5655 ? BLASSO to 0.5670 ?RKHS). However, the RKHS method exhibited higher efficiency and consistency in most of the validation scenarios in terms of prediction ability for fresh root yield and dry root yield. The correlations of the genomic estimated br... Mostrar Tudo |
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Palavras-Chave: |
Genomic predictions; Heredity. |
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Thesagro: |
Mandioca; Melhoramento Genético Vegetal. |
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Thesaurus Nal: |
Cassava; Plant breeding. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/205981/1/2019-M.Deon-PO-Cassava.pdf
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Marc: |
LEADER 03091naa a2200253 a 4500
001 2115740
005 2019-12-03
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1371/journal.pone.0224920$2DOI
100 1 $aANDRADE, L. R. B. de
245 $aCassava yield traits predicted by genomic selection methods.$h[electronic resource]
260 $c2019
520 $aGenomic selection (GS) has been used to optimize genetic gains when phenotypic selection is considered costly and difficult to measure. The objective of this work was to evaluate the efficiency and consistency of GS prediction for cassava yield traits (Manihot esculenta Crantz) using different methods, taking into account the effect of population structure. BLUPs and deregressed BLUPs were obtained for 888 cassava accessions and evaluated for fresh root yield, dry root yield and dry matter content in roots in 21 trials conducted from 2011 to 2016. The deregressed BLUPs obtained for the accessions from a 48K single nucleotide polymorphism dataset were used for genomic predictions based on the BayesB, BLASSO, RR-BLUP, G-BLUP and RKHS methods. The accessions? BLUPs were used in the validation step using four cross-validation strategies, taking into account population structure and different GS methods. Similar estimates of predictive ability and bias were identified for the different genomic selection methods in the first cross-validation strategy. Lower predictive ability was observed for fresh root yield (0.4569 ?RR-BLUP to 0.4756?RKHS) and dry root yield (0.4689 ?G-BLUP to 0.4818?RKHS) in comparison with dry matter content (0.5655 ? BLASSO to 0.5670 ?RKHS). However, the RKHS method exhibited higher efficiency and consistency in most of the validation scenarios in terms of prediction ability for fresh root yield and dry root yield. The correlations of the genomic estimated breeding values between the genomic selection methods were quite high (0.99?1.00), resulting in high coincidence of clone selection regardless of the genomic selection method. The deviance analyses within and between the validation clusters formed by the discriminant analysis of principal components were significant for all traits. Therefore, this study indicated that i) the prediction of dry matter content was more accurate compared to that of yield traits, possibly as a result of the smaller influence of non-additive genetic effects; ii) the RKHS method resulted in high and stable prediction ability in most of the validation scenarios; and iii) some kinship between the validation and training populations is desirable in order for genomic selection to succeed due to the significant effect of population structure on genomic selection predictions.
650 $aCassava
650 $aPlant breeding
650 $aMandioca
650 $aMelhoramento Genético Vegetal
653 $aGenomic predictions
653 $aHeredity
700 1 $aSOUSA, M. B. e
700 1 $aOLIVEIRA, E. J. de
700 1 $aRESENDE, M. D. V. de
700 1 $aAZEVEDO, C. F.
773 $tPLoS One$gv. 14, n. 11, e0224920, Nov. 2019. 22 p.
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Registro original: |
Embrapa Florestas (CNPF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
05/12/2008 |
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Data da última atualização: |
05/12/2008 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
SANTOS, A. B. dos; REIS JÚNIOR, F. B. dos; LOPES, A. C.; MENDES, I. C.; SIMON, M. F.; FARIA, S. M. de; LOUREIRO, M. F.; GROSS, E.; ELLIOTT, G. N.; BONTEMPS, C. |
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Afiliação: |
Anderson B. dos Santos; Fábio Bueno dos Reis Júnior, CPAC; André A. C. Lopes; Iêda Carvalho Mendes, CPAC; Marcelo F. Simon, Embrapa Sede; Sérgio M. de Faria, CNPAB; Maria F. Loureiro, UFMT; Eduardo Gross, UESC; Geoffrey N. Elliott, University of Dundee; Cyril Bontemps, University of York. |
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Título: |
Avaliação da capacidade simbiótica de estirpes de "beta-rizóbios" isoladas de nódulos de diferentes espécies de Mimosa. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: SIMPÓSIO NACIONAL CERRADO, 9.; SIMPÓSIO INTERNACIONAL SAVANAS TROPICAIS, 2., 2008, Brasília, DF. Desafios e estratégias para o equilíbrio entre sociedade, agronegócio e recursos naturais: anais... Planaltina, DF: Embrapa Cerrados, 2008. 1 CD-ROM. |
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Idioma: |
Português |
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Palavras-Chave: |
Fixação biológica de nitrogênio. |
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Thesaurus NAL: |
Burkholderia. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00951naa a2200241 a 4500
001 1571295
005 2008-12-05
008 2008 bl uuuu u00u1 u #d
100 1 $aSANTOS, A. B. dos
245 $aAvaliação da capacidade simbiótica de estirpes de "beta-rizóbios" isoladas de nódulos de diferentes espécies de Mimosa.
260 $c2008
650 $aBurkholderia
653 $aFixação biológica de nitrogênio
700 1 $aREIS JÚNIOR, F. B. dos
700 1 $aLOPES, A. C.
700 1 $aMENDES, I. C.
700 1 $aSIMON, M. F.
700 1 $aFARIA, S. M. de
700 1 $aLOUREIRO, M. F.
700 1 $aGROSS, E.
700 1 $aELLIOTT, G. N.
700 1 $aBONTEMPS, C.
773 $tIn: SIMPÓSIO NACIONAL CERRADO, 9.; SIMPÓSIO INTERNACIONAL SAVANAS TROPICAIS, 2., 2008, Brasília, DF. Desafios e estratégias para o equilíbrio entre sociedade, agronegócio e recursos naturais: anais... Planaltina, DF: Embrapa Cerrados, 2008. 1 CD-ROM.
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