Variability of nodulation traits in Andean and Mesoamerican common bean gene pools
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/24558 |
Resumo: | The objective of this work was to evaluate the genotypic diversity for nodulation in common bean (Phaseolus vulgaris) genotypes of Andean and Mesoamerican gene pools present in the core collections of Embrapa, in Brazil. Evaluations were carried out in two stages: the first one with 879 genotypes, taking the cultivar 'Ouro Negro' as reference; and the second one with 116 genotypes with greater nodulation, to identify those showing stability in nodulation in the two stages. Rhizobium strains were inoculated in pre-germinated common bean seed. Plants received weekly a nutrient solution without N, and nodulation was evaluated 35 days after planting. The percentage of genotypes that exceeded the reference cultivar was 22% for number of nodules, 46% for nodule dry weight, and 33% for one nodule dry weight. The combined analysis of data from the two evaluation phases showed wide differences among genotypes, and significant interactions between genotypes and stages. By the orthogonal contrasts analysis, the Mesoamerican genotypes showed a greater nodulation than the Andean ones. In both stages, twenty-six more stable genotypes were identified, most of them belonging to the Mesoamerican gene pool. There is a large variability in nodulation traits among the common bean genotypes present in the core germplasm collections of Embrapa, which suggests that there are genotypes with improved nodulation. |
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Variability of nodulation traits in Andean and Mesoamerican common bean gene poolsVariabilidade das características de nodulação em feijoeiro-comum dos conjuntos gênicos andino e mesoamericanoPhaseolus vulgaris; biological nitrogen fixation; diversity; germplasm bankPhaseolus vulgaris; fixação biológica de nitrogênio; diversidade; banco de germoplasmaThe objective of this work was to evaluate the genotypic diversity for nodulation in common bean (Phaseolus vulgaris) genotypes of Andean and Mesoamerican gene pools present in the core collections of Embrapa, in Brazil. Evaluations were carried out in two stages: the first one with 879 genotypes, taking the cultivar 'Ouro Negro' as reference; and the second one with 116 genotypes with greater nodulation, to identify those showing stability in nodulation in the two stages. Rhizobium strains were inoculated in pre-germinated common bean seed. Plants received weekly a nutrient solution without N, and nodulation was evaluated 35 days after planting. The percentage of genotypes that exceeded the reference cultivar was 22% for number of nodules, 46% for nodule dry weight, and 33% for one nodule dry weight. The combined analysis of data from the two evaluation phases showed wide differences among genotypes, and significant interactions between genotypes and stages. By the orthogonal contrasts analysis, the Mesoamerican genotypes showed a greater nodulation than the Andean ones. In both stages, twenty-six more stable genotypes were identified, most of them belonging to the Mesoamerican gene pool. There is a large variability in nodulation traits among the common bean genotypes present in the core germplasm collections of Embrapa, which suggests that there are genotypes with improved nodulation.O objetivo deste trabalho foi avaliar a diversidade genotípica quanto à nodulação em genótipos de feijoeiro-comum (Phaseolus vulgaris) pertencentes aos conjuntos gênicos andino e mesoamericano presentes nas coleções nucleares da Embrapa, no Brasil. As avaliações foram realizadas em dois estágios: o primeiro com 879 genótipos, tendo-se a cultivar 'Ouro Negro' como referência; e o segundo, com 116 genótipos de maior nodulação, para identificar aqueles com estabilidade de nodulação nos dois estágios. Estirpes de Rhizobium foram inoculadas em sementes de feijão pré-germinadas. As plantas receberam, semanalmente, uma solução nutritiva isenta de N, e a nodulação foi avaliada 35 dias após o plantio. O percentual de genótipos que superaram a cultivar-referência foi de: 22%, quanto ao número de nódulos; 46%, quanto à massa de matéria seca de nódulos; e 33%, quanto à massa de matéria seca de um nódulo. A análise conjunta dos dados das duas fases de avaliação identificou amplas diferenças entre genótipos e interações significativas entre genótipos e estágios. Na análise de contrastes ortogonais, os genótipos mesoamericanos apresentaram maior nodulação do que os andinos. Foram identificados 26 genótipos mais estáveis nos dois estágios, a maioria deles pertencente ao conjunto gênico mesoamericano. Há uma ampla variabilidade em caracteres relacionados à nodulação entre os genótipos de feijoeiro presentes nas coleções nucleares da Embrapa, o que é indício de que há genótipos com maior nodulação.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraEmpresa Brasileira de Pesquisa Agropecuária (Embrapa, Protocol No. 21161.000167/2016-73)Knupp, Adriano MoreiraFerreira, Enderson Petrônio de BritoAraújo, Adelson Paulo2017-05-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/24558Pesquisa Agropecuaria Brasileira; v.52, n.4, abr. 2017; 252-260Pesquisa Agropecuária Brasileira; v.52, n.4, abr. 2017; 252-2601678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/24558/13734https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/24558/16411Direitos autorais 2017 Pesquisa Agropecuária Brasileirainfo:eu-repo/semantics/openAccess2017-05-08T12:18:29Zoai:ojs.seer.sct.embrapa.br:article/24558Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2017-05-08T12:18:29Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Variability of nodulation traits in Andean and Mesoamerican common bean gene pools Variabilidade das características de nodulação em feijoeiro-comum dos conjuntos gênicos andino e mesoamericano |
title |
Variability of nodulation traits in Andean and Mesoamerican common bean gene pools |
spellingShingle |
Variability of nodulation traits in Andean and Mesoamerican common bean gene pools Knupp, Adriano Moreira Phaseolus vulgaris; biological nitrogen fixation; diversity; germplasm bank Phaseolus vulgaris; fixação biológica de nitrogênio; diversidade; banco de germoplasma |
title_short |
Variability of nodulation traits in Andean and Mesoamerican common bean gene pools |
title_full |
Variability of nodulation traits in Andean and Mesoamerican common bean gene pools |
title_fullStr |
Variability of nodulation traits in Andean and Mesoamerican common bean gene pools |
title_full_unstemmed |
Variability of nodulation traits in Andean and Mesoamerican common bean gene pools |
title_sort |
Variability of nodulation traits in Andean and Mesoamerican common bean gene pools |
author |
Knupp, Adriano Moreira |
author_facet |
Knupp, Adriano Moreira Ferreira, Enderson Petrônio de Brito Araújo, Adelson Paulo |
author_role |
author |
author2 |
Ferreira, Enderson Petrônio de Brito Araújo, Adelson Paulo |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa, Protocol No. 21161.000167/2016-73) |
dc.contributor.author.fl_str_mv |
Knupp, Adriano Moreira Ferreira, Enderson Petrônio de Brito Araújo, Adelson Paulo |
dc.subject.por.fl_str_mv |
Phaseolus vulgaris; biological nitrogen fixation; diversity; germplasm bank Phaseolus vulgaris; fixação biológica de nitrogênio; diversidade; banco de germoplasma |
topic |
Phaseolus vulgaris; biological nitrogen fixation; diversity; germplasm bank Phaseolus vulgaris; fixação biológica de nitrogênio; diversidade; banco de germoplasma |
description |
The objective of this work was to evaluate the genotypic diversity for nodulation in common bean (Phaseolus vulgaris) genotypes of Andean and Mesoamerican gene pools present in the core collections of Embrapa, in Brazil. Evaluations were carried out in two stages: the first one with 879 genotypes, taking the cultivar 'Ouro Negro' as reference; and the second one with 116 genotypes with greater nodulation, to identify those showing stability in nodulation in the two stages. Rhizobium strains were inoculated in pre-germinated common bean seed. Plants received weekly a nutrient solution without N, and nodulation was evaluated 35 days after planting. The percentage of genotypes that exceeded the reference cultivar was 22% for number of nodules, 46% for nodule dry weight, and 33% for one nodule dry weight. The combined analysis of data from the two evaluation phases showed wide differences among genotypes, and significant interactions between genotypes and stages. By the orthogonal contrasts analysis, the Mesoamerican genotypes showed a greater nodulation than the Andean ones. In both stages, twenty-six more stable genotypes were identified, most of them belonging to the Mesoamerican gene pool. There is a large variability in nodulation traits among the common bean genotypes present in the core germplasm collections of Embrapa, which suggests that there are genotypes with improved nodulation. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-05-08 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/24558 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/24558 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/24558/13734 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/24558/16411 |
dc.rights.driver.fl_str_mv |
Direitos autorais 2017 Pesquisa Agropecuária Brasileira info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Direitos autorais 2017 Pesquisa Agropecuária Brasileira |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.52, n.4, abr. 2017; 252-260 Pesquisa Agropecuária Brasileira; v.52, n.4, abr. 2017; 252-260 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416672946683904 |