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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. |
Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
10/11/2017 |
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Data da última atualização: |
10/11/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
VASCONCELOS, L. M.; BRITO, A. C.; CARMO, C. D.; OLIVEIRA, P. H. G. A.; OLIVEIRA, E. J. de. |
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Afiliação: |
L. M. VASCONCELOS, UFRB; A. C. BRITO; C. D. CARMO, UFRB; P. H. G. A. OLIVEIRA, UFRB; EDER JORGE DE OLIVEIRA, CNPMF. |
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Título: |
Phenotypic diversity of starch granules in cassava germplasm. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Genetics and Molecular Research, v. 16, n.2, April, 2017. |
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ISSN: |
1676-5680 |
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DOI: |
10.4238/gmr16029276 |
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Idioma: |
Inglês |
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Conteúdo: |
Demand for the development of cassava varieties with different native starches has guided the search for these characteristics in the germplasm of Manihot esculenta Crantz. Therefore, the objective of this study was to estimate the genetic diversity of cassava accessions for root and starch granule characteristics to guide the future industrial application of this species. Starches from 56 accessions were evaluated for the number of granules in 1 g of starch (NTG), area (AG, ?m2), length (LG, ?m), width (WG, ?m), starch granule roundness (Round), dry matter content in the roots (DMC, %), pulp color (PulCo), and cyanogenic compounds (HCN). Images captured by light microscopy were used to determine the average phenotypic values, and these were further analyzed by principal component analysis (PCA) considering mixed data (quantitative and qualitative). Significant differences between the cassava accessions for all traits measured revealed wide variability in starch granule characteristics. Four diversity groups with better fitness for the classification of cassava accessions based on PulCo were identified, in comparison with HCN. Accessions with differential starch characteristics were identified, and crossings for the generation of segregating populations in order to obtain table and industry varieties have been proposed. |
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Thesagro: |
Mandioca. |
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Thesaurus NAL: |
Cassava. |
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Categoria do assunto: |
-- |
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Marc: |
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022 $a1676-5680
024 7 $a10.4238/gmr16029276$2DOI
100 1 $aVASCONCELOS, L. M.
245 $aPhenotypic diversity of starch granules in cassava germplasm.$h[electronic resource]
260 $c2017
520 $aDemand for the development of cassava varieties with different native starches has guided the search for these characteristics in the germplasm of Manihot esculenta Crantz. Therefore, the objective of this study was to estimate the genetic diversity of cassava accessions for root and starch granule characteristics to guide the future industrial application of this species. Starches from 56 accessions were evaluated for the number of granules in 1 g of starch (NTG), area (AG, ?m2), length (LG, ?m), width (WG, ?m), starch granule roundness (Round), dry matter content in the roots (DMC, %), pulp color (PulCo), and cyanogenic compounds (HCN). Images captured by light microscopy were used to determine the average phenotypic values, and these were further analyzed by principal component analysis (PCA) considering mixed data (quantitative and qualitative). Significant differences between the cassava accessions for all traits measured revealed wide variability in starch granule characteristics. Four diversity groups with better fitness for the classification of cassava accessions based on PulCo were identified, in comparison with HCN. Accessions with differential starch characteristics were identified, and crossings for the generation of segregating populations in order to obtain table and industry varieties have been proposed.
650 $aCassava
650 $aMandioca
700 1 $aBRITO, A. C.
700 1 $aCARMO, C. D.
700 1 $aOLIVEIRA, P. H. G. A.
700 1 $aOLIVEIRA, E. J. de
773 $tGenetics and Molecular Research$gv. 16, n.2, April, 2017.
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