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 | Acesso ao texto completo restrito à biblioteca da Embrapa Arroz e Feijão. Para informações adicionais entre em contato com cnpaf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
03/02/2014 |
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Data da última atualização: |
03/02/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BLAIR, M. W.; BRONDANI, R. V. P.; DÍAZ, L. M.; DEL PELOSO, M. J. |
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Afiliação: |
MATTHEW W. BLAIR, CORNELL UNIVERSITY; ROSANA PEREIRA VIANELLO, CNPAF; LUCY M. DÍAZ, CIMMYT; MARIA JOSE DEL PELOSO, CNPAF. |
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Título: |
Diversity and population structure of common bean from Brazil. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Crop Science, Madison, v. 53, n. 5, p. 1983-1993, Sep./Oct. 2013. |
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DOI: |
10.2135/cropsci2012.09.0516 |
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Idioma: |
Inglês |
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Conteúdo: |
Brazil is arguably the world´s largest bean producing country and the crop is an important cultural and nutritional component of food in this part of South America. Common bean (Phaseolus vulgaris L.) is cultivated in almost all Brazilian states by small and large producers in diverse production systems and holds great economic and social standing. The goal of this study was to evaluate a collection of 362 common bean landraces and cultivars from Brazil to determine the genetic diversity found in different regions of the country. We performed principal component and population structure analyses so as to understand the subgroups and races found in Brazil. The optimum number of subgroups in the Brazilian germplasm was found to be K = 5 and at this level, the Mesoamerican genepool was subdivided into four subgroups, which remained separate from the Andean subgroup (A1). The M2 and M3 subgroups presented high diversity and high levels of allele mixing between genepools. Subgroup and genepool identities were confirmed by morphological traits such as seed size and phaseolin protein types. Allele switching between the genepools was common for growth habits and phaseolin. The association of the subgroups with commercial classes of Brazilian beans (Carioca, Preto, Rosinha, and Roxinho Mesoamerican types or Jalo and Roxo Andean types) is discussed as is the potential for specific subraces among the germplasm in Brazil. |
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Palavras-Chave: |
Diversidade genética. |
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Thesagro: |
Feijão; Genética molecular; Germoplasma; Melhoramento genético vegetal; Phaseolus vulgaris; Variação genética. |
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Thesaurus Nal: |
Genetic variation. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02233naa a2200265 a 4500
001 1978315
005 2014-02-03
008 2013 bl uuuu u00u1 u #d
024 7 $a10.2135/cropsci2012.09.0516$2DOI
100 1 $aBLAIR, M. W.
245 $aDiversity and population structure of common bean from Brazil.$h[electronic resource]
260 $c2013
520 $aBrazil is arguably the world´s largest bean producing country and the crop is an important cultural and nutritional component of food in this part of South America. Common bean (Phaseolus vulgaris L.) is cultivated in almost all Brazilian states by small and large producers in diverse production systems and holds great economic and social standing. The goal of this study was to evaluate a collection of 362 common bean landraces and cultivars from Brazil to determine the genetic diversity found in different regions of the country. We performed principal component and population structure analyses so as to understand the subgroups and races found in Brazil. The optimum number of subgroups in the Brazilian germplasm was found to be K = 5 and at this level, the Mesoamerican genepool was subdivided into four subgroups, which remained separate from the Andean subgroup (A1). The M2 and M3 subgroups presented high diversity and high levels of allele mixing between genepools. Subgroup and genepool identities were confirmed by morphological traits such as seed size and phaseolin protein types. Allele switching between the genepools was common for growth habits and phaseolin. The association of the subgroups with commercial classes of Brazilian beans (Carioca, Preto, Rosinha, and Roxinho Mesoamerican types or Jalo and Roxo Andean types) is discussed as is the potential for specific subraces among the germplasm in Brazil.
650 $aGenetic variation
650 $aFeijão
650 $aGenética molecular
650 $aGermoplasma
650 $aMelhoramento genético vegetal
650 $aPhaseolus vulgaris
650 $aVariação genética
653 $aDiversidade genética
700 1 $aBRONDANI, R. V. P.
700 1 $aDÍAZ, L. M.
700 1 $aDEL PELOSO, M. J.
773 $tCrop Science, Madison$gv. 53, n. 5, p. 1983-1993, Sep./Oct. 2013.
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