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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
09/01/2017 |
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Data da última atualização: |
17/02/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VENTURINI, M. T.; SANTOS, L. R.; VILDOSO, C. I. A.; SANTOS, V. da S.; OLIVEIRA, E. J. de. |
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Afiliação: |
M. T. Venturini, UFRB; L. R. SANTOS, UFRB; C. I. A. VILDOSO; VANDERLEI DA SILVA SANTOS, CNPMF; EDER JORGE DE OLIVEIRA, CNPMF. |
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Título: |
Variation in cassava germplasm for tolerance to post-harvest physiological deterioration. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Genetics and Molecular Research, V. 15,, n. 2, May, 2016. |
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ISSN: |
1676-5680 |
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DOI: |
gmr.15027818 |
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Idioma: |
Inglês |
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Conteúdo: |
Tolerant varieties can effectively control post-harvest physiological deterioration (PPD) of cassava, although knowledge on the genetic variability and inheritance of this trait is needed. The objective of this study was to estimate genetic parameters and identify sources of tolerance to PPD and their stability in cassava accessions. Roots from 418 cassava accessions, grown in four independent experiments, were evaluated for PPD tolerance 0, 2, 5, and 10 days post-harvest. Data were transformed into area under the PPD-progress curve (AUP-PPD) to quantify tolerance. Genetic parameters, stability (Si), adaptability (Ai), and the joint analysis of stability and adaptability (Zi) were obtained via residual maximum likelihood (REML) and best linear unbiased prediction (BLUP) methods. Variance in the genotype (G) x environment (E) interaction and genotypic variance were important for PPD tolerance. Individual broad-sense heritability (2gh= 0.38 ± 0.04) and average heritability in accessions (= 0.52) showed high genetic control of PPD tolerance. Genotypic correlation of AUP-PPD in different experiments was of medium magnitude ( =0.42), indicating significant G x E interaction. The predicted genotypic values o f G x E free of interaction (?ˆ + gˆi ) showed high variation. Of the 30 accessions with high Zi, 19 were common to ?ˆ + gˆi , Si, and Ai parameters. The genetic gain with selection of these 19 cassava accessions was -55.94, -466.86, -397.72, and -444.03% for i ?ˆ + gˆ , Si, Ai, and Zi, respectively, compared with the overall mean for each parameter. These results demonstrate the variability and potential of cassava germplasm to introduce PPD tolerance in commercial varieties. MenosTolerant varieties can effectively control post-harvest physiological deterioration (PPD) of cassava, although knowledge on the genetic variability and inheritance of this trait is needed. The objective of this study was to estimate genetic parameters and identify sources of tolerance to PPD and their stability in cassava accessions. Roots from 418 cassava accessions, grown in four independent experiments, were evaluated for PPD tolerance 0, 2, 5, and 10 days post-harvest. Data were transformed into area under the PPD-progress curve (AUP-PPD) to quantify tolerance. Genetic parameters, stability (Si), adaptability (Ai), and the joint analysis of stability and adaptability (Zi) were obtained via residual maximum likelihood (REML) and best linear unbiased prediction (BLUP) methods. Variance in the genotype (G) x environment (E) interaction and genotypic variance were important for PPD tolerance. Individual broad-sense heritability (2gh= 0.38 ± 0.04) and average heritability in accessions (= 0.52) showed high genetic control of PPD tolerance. Genotypic correlation of AUP-PPD in different experiments was of medium magnitude ( =0.42), indicating significant G x E interaction. The predicted genotypic values o f G x E free of interaction (?ˆ + gˆi ) showed high variation. Of the 30 accessions with high Zi, 19 were common to ?ˆ + gˆi , Si, and Ai parameters. The genetic gain with selection of these 19 cassava accessions was -55.94, -466.86, -397.72, and -444.03% for i ?ˆ + gˆ , Si, A... Mostrar Tudo |
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Thesagro: |
Mandioca; Melhoramento vegetal. |
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Thesaurus Nal: |
Cassava. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02384naa a2200229 a 4500
001 2060227
005 2017-02-17
008 2016 bl uuuu u00u1 u #d
022 $a1676-5680
024 7 $agmr.15027818$2DOI
100 1 $aVENTURINI, M. T.
245 $aVariation in cassava germplasm for tolerance to post-harvest physiological deterioration.$h[electronic resource]
260 $c2016
520 $aTolerant varieties can effectively control post-harvest physiological deterioration (PPD) of cassava, although knowledge on the genetic variability and inheritance of this trait is needed. The objective of this study was to estimate genetic parameters and identify sources of tolerance to PPD and their stability in cassava accessions. Roots from 418 cassava accessions, grown in four independent experiments, were evaluated for PPD tolerance 0, 2, 5, and 10 days post-harvest. Data were transformed into area under the PPD-progress curve (AUP-PPD) to quantify tolerance. Genetic parameters, stability (Si), adaptability (Ai), and the joint analysis of stability and adaptability (Zi) were obtained via residual maximum likelihood (REML) and best linear unbiased prediction (BLUP) methods. Variance in the genotype (G) x environment (E) interaction and genotypic variance were important for PPD tolerance. Individual broad-sense heritability (2gh= 0.38 ± 0.04) and average heritability in accessions (= 0.52) showed high genetic control of PPD tolerance. Genotypic correlation of AUP-PPD in different experiments was of medium magnitude ( =0.42), indicating significant G x E interaction. The predicted genotypic values o f G x E free of interaction (?ˆ + gˆi ) showed high variation. Of the 30 accessions with high Zi, 19 were common to ?ˆ + gˆi , Si, and Ai parameters. The genetic gain with selection of these 19 cassava accessions was -55.94, -466.86, -397.72, and -444.03% for i ?ˆ + gˆ , Si, Ai, and Zi, respectively, compared with the overall mean for each parameter. These results demonstrate the variability and potential of cassava germplasm to introduce PPD tolerance in commercial varieties.
650 $aCassava
650 $aMandioca
650 $aMelhoramento vegetal
700 1 $aSANTOS, L. R.
700 1 $aVILDOSO, C. I. A.
700 1 $aSANTOS, V. da S.
700 1 $aOLIVEIRA, E. J. de
773 $tGenetics and Molecular Research, V. 15,$gn. 2, May, 2016.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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| 2. |  | CARNEIRO, A. V.; YAMAGUCHI, L. C. T.; CARVALHO, G. R.; SPANIOL, C. M. O. Estruturação de Índice de Custo de Produção de Leite em Minas Gerais. In: WORKSHOP DE INICIAÇÃO CIENTÍFICA DA EMBRAPA GADO DE LEITE, 4., 2009, Juiz de Fora, MG. Anais... Juiz de Fora: Embrapa Gado de Leite, 2009. (Embrapa Gado de Leite. Documentos, 136.). 3 p.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 3. | | CARNEIRO, A. V.; YAMAGUCHI, L. C. T.; CARVALHO, G. R.; ZOCCAL, R.; SPANIOL, C. M. O. Índice de Custo de Produção de Leite da Embrapa Gado de Leite (ICPLeite/Embrapa) no período abril de 2006 a maio de 2009. In: WORKSHOP DE INICIAÇÃO CIENTÍFICA DA EMBRAPA GADO DE LEITE, 4., 2009, Juiz de Fora, MG. Anais... Juiz de Fora: Embrapa Gado de Leite, 2009. (Embrapa Gado de Leite. Documentos, 136.). 5 p. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 4. | | CARVALHO, G. R.; VEIRA, S. B. K.; DUARTE, M. M.; GUIMARÃES, T. F. A.; SPANIOL, C. M. O. Análise da concentração da produção mundial de leite entre 1992 e 2007. In: MINAS LEITE, 10., 2008, Juiz de Fora, MG. Sustentabilidade da produção de leite na agricultura familiar: anais. Juiz de Fora: Embrapa Gado de Leite, 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 5. | | NEVES, A. L. A.; PEREIRA, L. G. R.; SANTOS, R. D. dos; ARAUJO, G. G. L. de; CARNEIRO, A. V.; MORAES, S. A. de; SPANIOL, C. M. O.; ARAGÃO, A. S. L. de. Caracterização dos produtores e dos sistemas de produção de leite no perímetro irrigado de Petrolina/PE. Revista Brasileira de Saúde e Produção Animal, v. 12, n. 1, p. 209-223, 2011.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Gado de Leite; Embrapa Semiárido. |
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| Registros recuperados : 5 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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