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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
10/02/2015 |
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Data da última atualização: |
08/03/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, E. J. de; SANTANA, F. A.; OLIVEIRA, L. A. de; SANTOS, V. da S. |
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Afiliação: |
EDER JORGE DE OLIVEIRA, CNPMF; FERNANDA ALVES SANTANA, UFRB; LUCIANA ALVES DE OLIVEIRA, CNPMF; VANDERLEI DA SILVA SANTOS, CNPMF. |
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Título: |
Genotypic variation of traits related to quality of cassava roots using affinity propagation algorithm. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Scientia Agricola, v.72, n.1, p.53-61, January/February 2015. |
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ISSN: |
0103-9016 |
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DOI: |
10.1590/0103-9016-2014-0043 |
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Idioma: |
Inglês |
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Conteúdo: |
The conservation, sustainable evaluation and use of cassava (Manihot esculenta Crantz) genetic resources are essential to the development of new commercial varieties. This study aimed to evaluate the quality of cassava roots and to estimate genetic ariation and clustering in cassava germplasm using the Affinity Propagation algorithm (AP), which is based on the concept of "message passing" between data points. AP finds "exemplars" of each group and members of the input set representative of clusters. The genotypic data of 474 cassava accessions were evaluated over a period of two years for starch yield (StYi), root dry matter (DMC), amylose content (AML), and the level of cyanogenic compounds (CyC). The AP algorithm enabled the formation of nine diversity groups, whose number reflects the high genetic diversity of this germplasm. A high homogeneity of genetic distances was observed within all the groups, except for two groups in which there was a partial overlap caused mainly by a high variation of the CyC trait. In addition, no relationship between the genetic structure and CyC (sweet and bitter cassava) was observed. Analysis of variance of the nine clusters confirmed the presence of differences between the groups. Thus, the results of this study can be used in future breeding programs (hybridization or selection) to introduce new genetic variability into commercial cultivars to avoid problems related to low genetic variation and to improve the quality of cassava roots. Keywords: germplasm, amylose content, cyanogenic compounds, yield MenosThe conservation, sustainable evaluation and use of cassava (Manihot esculenta Crantz) genetic resources are essential to the development of new commercial varieties. This study aimed to evaluate the quality of cassava roots and to estimate genetic ariation and clustering in cassava germplasm using the Affinity Propagation algorithm (AP), which is based on the concept of "message passing" between data points. AP finds "exemplars" of each group and members of the input set representative of clusters. The genotypic data of 474 cassava accessions were evaluated over a period of two years for starch yield (StYi), root dry matter (DMC), amylose content (AML), and the level of cyanogenic compounds (CyC). The AP algorithm enabled the formation of nine diversity groups, whose number reflects the high genetic diversity of this germplasm. A high homogeneity of genetic distances was observed within all the groups, except for two groups in which there was a partial overlap caused mainly by a high variation of the CyC trait. In addition, no relationship between the genetic structure and CyC (sweet and bitter cassava) was observed. Analysis of variance of the nine clusters confirmed the presence of differences between the groups. Thus, the results of this study can be used in future breeding programs (hybridization or selection) to introduce new genetic variability into commercial cultivars to avoid problems related to low genetic variation and to improve the quality of cassava roots. Key... Mostrar Tudo |
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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: |
LEADER 02177naa a2200205 a 4500
001 2008378
005 2016-03-08
008 2015 bl uuuu u00u1 u #d
022 $a0103-9016
024 7 $a10.1590/0103-9016-2014-0043$2DOI
100 1 $aOLIVEIRA, E. J. de
245 $aGenotypic variation of traits related to quality of cassava roots using affinity propagation algorithm.
260 $c2015
520 $aThe conservation, sustainable evaluation and use of cassava (Manihot esculenta Crantz) genetic resources are essential to the development of new commercial varieties. This study aimed to evaluate the quality of cassava roots and to estimate genetic ariation and clustering in cassava germplasm using the Affinity Propagation algorithm (AP), which is based on the concept of "message passing" between data points. AP finds "exemplars" of each group and members of the input set representative of clusters. The genotypic data of 474 cassava accessions were evaluated over a period of two years for starch yield (StYi), root dry matter (DMC), amylose content (AML), and the level of cyanogenic compounds (CyC). The AP algorithm enabled the formation of nine diversity groups, whose number reflects the high genetic diversity of this germplasm. A high homogeneity of genetic distances was observed within all the groups, except for two groups in which there was a partial overlap caused mainly by a high variation of the CyC trait. In addition, no relationship between the genetic structure and CyC (sweet and bitter cassava) was observed. Analysis of variance of the nine clusters confirmed the presence of differences between the groups. Thus, the results of this study can be used in future breeding programs (hybridization or selection) to introduce new genetic variability into commercial cultivars to avoid problems related to low genetic variation and to improve the quality of cassava roots. Keywords: germplasm, amylose content, cyanogenic compounds, yield
650 $aCassava
650 $aMandioca
700 1 $aSANTANA, F. A.
700 1 $aOLIVEIRA, L. A. de
700 1 $aSANTOS, V. da S.
773 $tScientia Agricola$gv.72, n.1, p.53-61, January/February 2015.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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| Registros recuperados : 17 | |
| 3. |  | LIMA, R. Y. M.; BRIENZA JUNIOR, S.; SOUSA, V. G. de. Recuperação de áreas degradadas com base em sistemas produtivos de paricá (Schizolobium parahyba var. amazonicum (Huber X Ducke) Barneby: projeção de cenários. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA, 20.; SEMINÁRIO DE PÓS-GRADUAÇÃO DA EMBRAPA AMAZÔNIA ORIENTAL, 4., 2016, Belém, PA. Anais. Belém, PA: Embrapa Amazônia Oriental, 2016. p. 357-361.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 8. | | COUTINHO, C. H. O.; BRIENZA JUNIOR, S.; MICHELOTTI, F.; FIGUEIREDO, R. B. de; KAHWAGE, C.; SOUSA, V. G. de. Um modelo agroecológico aplicado a agricultura familiar da Amazônia Oriental brasileira: o enriquecimento da capoeira. In: CONGRESSO BRASILEIRO DE AGROECOLOGIA, 3.; SEMINÁRIO ESTADUAL DE AGROECOLOGIA, 3., 2005, Florianópolis. A sociedade construindo conhecimentos para a vida: anais. Florianópolis: Associação Brasileira de Agroecologia, 2005. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 10. | | BRASIL, E. C.; AGUIAR, S. H. S.; BRIENZA JUNIOR, S.; SOUSA, V. G. de; GAMA, M. A. P.; DANTAS, R. C. R. Adubação fosfatada e nitrogenada no desenvolvimento de plantas de paricá em um Latossolo Amarelo distrófico do nordeste do Pará. In: ENCONTRO DE CIÊNCIA DO SOLO DA AMAZÔNIA ORIENTAL, 2., 2016, Capanema. [Anais]. [Belém, PA: UFRA], 2016.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 11. | | BRASIL, E. C.; AGUIAR, S. H. da S.; COSTA, A. S. da; SOUSA, V. G. de; BRIENZA JUNIOR, S.; GAMA, M. A. P. Aplicação combinada de fosfato reativo e solúvel no desenvolvimento inicial do Paricá (Schizolobium parahyba var. amazonicum). In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 35., 2015, Natal. O solo e suas múltiplas funções: anais. Natal: Sociedade Brasileira de Ciência do Solo, 2015.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 12. | | BRASIL, E. C.; COSTA, A. S. da; BRIENZA JUNIOR, S.; SOUSA, V. G. de; GAMA, M. A. P.; AGUIAR, S. H. S. Comportamento do paricá submetido à adubação fosfatada e nitrogenada em um Latossolo Amarelo distrófico do sudeste paraense. In: ENCONTRO DE CIÊNCIA DO SOLO DA AMAZÔNIA ORIENTAL, 2., 2016, Capanema. [Anais]. [Belém, PA: UFRA], 2016.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 15. | | OCHOA-COUTINHO, C. H.; BRIENZA JUNIOR, S.; BASTOS, A. P. V.; SILVA, J. A. de F. e; SOUSA, V. G. de. Floristic composition of soil seed bank in forest plantations in the Eastern Amazon, Pará, Brazil. In: INTERNATIONAL RESEARCH ON FOOD SECURITY, NATURAL RESOURCE MANAGEMENT AND RURAL DEVELOPMENT, 2012, Göttingen; Kassel. Resilience of agricultural systems against crises: book of abstracts. Witzenhausen: Verlag, 2012. p. 256.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 16. | | BRIENZA JUNIOR, S.; YARED, J. A. G.; SOUSA, V. G. de; NARDUCCI, T. S.; SALOMÃO, R. de P.; MARTORANO, L. G. Tachigali vulgaris na Amazônia: retrospectiva de pesquisas com plantios experimentais. In: WORKSHOP ONLINE FLORESTAS DE TACHIGALI VULGARIS, 1., 2021, Colombo. Anais. Colombo: Embrapa Florestas, 2022. p. 59-73. (Embrapa Florestas. Documentos, 377).| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 17 | |
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