Clustering of progress curves of late blight for tomato genotypes from interspecific crosses
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/8556 |
Resumo: | The objective of this work was to estimate the progress curves of late blight in tomato genotypes, and to identify tomato genotype groups resistant to this disease. Twenty-five hybrid tomatoes, originated from crosses between four fresh market cultivars, one access from the Banco de Germoplasma de Hortaliças (BGH) of Universidade Federal de Viçosa (UFV), and five F8 lines (Solanum lycopersicum x Solanum habrochaites), selected as late blight resistance source, were evaluated. Plants were inoculated with a sporangium mixture of Phytophthora infestans, and then, six evaluations for late blight severity were carried out every three days. The exponential model was fitted to the data of late blight severity percentage, and the obtained parameter estimates – initial incidence of disease (yo )and progress rate of disease (r) – were submitted to the multivariate analysis of variance (Manova). The means of these estimates, obtained for each genotype, were submitted to the cluster analysis. An optimal number of eight distinct groups was observed, which made it possible to identify the genotypes belonging both to the resistant and susceptible groups. The experimental hybrids Ikram x 73 A, Nemo-Netta x 133 A, Ikram x 163 A and Nemo-Netta x 163 A showed the smaller rate of disease progress and, therefore, higher late blight resistance. |
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Clustering of progress curves of late blight for tomato genotypes from interspecific crossesAgrupamento de curvas de progresso de requeima, em tomateiro originado de cruzamento interespecíficoPhytophtora infestans; Solanum; cluster analysis; plant breeding; genetic resistancePhytophtora infestans; Solanum; análise de grupo; melhoramento genético; resistência genéticaThe objective of this work was to estimate the progress curves of late blight in tomato genotypes, and to identify tomato genotype groups resistant to this disease. Twenty-five hybrid tomatoes, originated from crosses between four fresh market cultivars, one access from the Banco de Germoplasma de Hortaliças (BGH) of Universidade Federal de Viçosa (UFV), and five F8 lines (Solanum lycopersicum x Solanum habrochaites), selected as late blight resistance source, were evaluated. Plants were inoculated with a sporangium mixture of Phytophthora infestans, and then, six evaluations for late blight severity were carried out every three days. The exponential model was fitted to the data of late blight severity percentage, and the obtained parameter estimates – initial incidence of disease (yo )and progress rate of disease (r) – were submitted to the multivariate analysis of variance (Manova). The means of these estimates, obtained for each genotype, were submitted to the cluster analysis. An optimal number of eight distinct groups was observed, which made it possible to identify the genotypes belonging both to the resistant and susceptible groups. The experimental hybrids Ikram x 73 A, Nemo-Netta x 133 A, Ikram x 163 A and Nemo-Netta x 163 A showed the smaller rate of disease progress and, therefore, higher late blight resistance.O objetivo deste trabalho foi estimar curvas de progresso de requeima, em genótipos de tomateiro, e identificar grupos de genótipos resistentes à doença. Foram avaliados 25 híbridos de tomateiro, originados de cruzamentos entre quatro variedades comerciais, um acesso do Banco de Germoplasma de Hortaliças (BGH), da Universidade Federal de Viçosa (UFV), e cinco linhagens F8 (Solanum lycopersicum x Solanum habrochaites), estas últimas selecionadas como fonte de resistência à requeima. As plantas foram inoculadas com uma mistura de esporângios de Phytophthora infestans e, em seguida, foram realizadas seis avaliações quanto à severidade de requeima, a intervalos de três dias. Ajustou-se o modelo exponencial aos dados de percentagem de severidade de requeima, e as estimativas obtidas quanto à incidência inicial da doença (yo) e taxa de progresso da doença (r) foram submetidas à análise de variância multivariada (Manova). As médias dessas estimativas, para cada genótipo, foram submetidas à análise de agrupamento. Observou-se um número ótimo de oito grupos distintos, o que possibilitou identificar genótipos resistentes e suscetíveis. Os híbridos experimentais Ikram x 73 A, Nemo-Netta x 133 A, Ikram x 163 A e Nemo-Netta x 163 A apresentaram a menor taxa de progresso de requeima e, portanto, maior resistência à doença.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFiorini, Cibelle Vilela AndradeSilva, Derly José Henriques daSilva, Fabyano Fonseca eMizubuti, Eduardo Seiti GomideAlves, Daniel PedrosaCardoso, Tiago de Sá2011-01-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/8556Pesquisa Agropecuaria Brasileira; v.45, n.10, out. 2010; 1095-1101Pesquisa Agropecuária Brasileira; v.45, n.10, out. 2010; 1095-11011678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/8556/6115https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/8556/4298https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/8556/4299info:eu-repo/semantics/openAccess2014-11-11T17:47:40Zoai:ojs.seer.sct.embrapa.br:article/8556Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-11-11T17:47:40Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Clustering of progress curves of late blight for tomato genotypes from interspecific crosses Agrupamento de curvas de progresso de requeima, em tomateiro originado de cruzamento interespecífico |
title |
Clustering of progress curves of late blight for tomato genotypes from interspecific crosses |
spellingShingle |
Clustering of progress curves of late blight for tomato genotypes from interspecific crosses Fiorini, Cibelle Vilela Andrade Phytophtora infestans; Solanum; cluster analysis; plant breeding; genetic resistance Phytophtora infestans; Solanum; análise de grupo; melhoramento genético; resistência genética |
title_short |
Clustering of progress curves of late blight for tomato genotypes from interspecific crosses |
title_full |
Clustering of progress curves of late blight for tomato genotypes from interspecific crosses |
title_fullStr |
Clustering of progress curves of late blight for tomato genotypes from interspecific crosses |
title_full_unstemmed |
Clustering of progress curves of late blight for tomato genotypes from interspecific crosses |
title_sort |
Clustering of progress curves of late blight for tomato genotypes from interspecific crosses |
author |
Fiorini, Cibelle Vilela Andrade |
author_facet |
Fiorini, Cibelle Vilela Andrade Silva, Derly José Henriques da Silva, Fabyano Fonseca e Mizubuti, Eduardo Seiti Gomide Alves, Daniel Pedrosa Cardoso, Tiago de Sá |
author_role |
author |
author2 |
Silva, Derly José Henriques da Silva, Fabyano Fonseca e Mizubuti, Eduardo Seiti Gomide Alves, Daniel Pedrosa Cardoso, Tiago de Sá |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Fiorini, Cibelle Vilela Andrade Silva, Derly José Henriques da Silva, Fabyano Fonseca e Mizubuti, Eduardo Seiti Gomide Alves, Daniel Pedrosa Cardoso, Tiago de Sá |
dc.subject.por.fl_str_mv |
Phytophtora infestans; Solanum; cluster analysis; plant breeding; genetic resistance Phytophtora infestans; Solanum; análise de grupo; melhoramento genético; resistência genética |
topic |
Phytophtora infestans; Solanum; cluster analysis; plant breeding; genetic resistance Phytophtora infestans; Solanum; análise de grupo; melhoramento genético; resistência genética |
description |
The objective of this work was to estimate the progress curves of late blight in tomato genotypes, and to identify tomato genotype groups resistant to this disease. Twenty-five hybrid tomatoes, originated from crosses between four fresh market cultivars, one access from the Banco de Germoplasma de Hortaliças (BGH) of Universidade Federal de Viçosa (UFV), and five F8 lines (Solanum lycopersicum x Solanum habrochaites), selected as late blight resistance source, were evaluated. Plants were inoculated with a sporangium mixture of Phytophthora infestans, and then, six evaluations for late blight severity were carried out every three days. The exponential model was fitted to the data of late blight severity percentage, and the obtained parameter estimates – initial incidence of disease (yo )and progress rate of disease (r) – were submitted to the multivariate analysis of variance (Manova). The means of these estimates, obtained for each genotype, were submitted to the cluster analysis. An optimal number of eight distinct groups was observed, which made it possible to identify the genotypes belonging both to the resistant and susceptible groups. The experimental hybrids Ikram x 73 A, Nemo-Netta x 133 A, Ikram x 163 A and Nemo-Netta x 163 A showed the smaller rate of disease progress and, therefore, higher late blight resistance. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-01-27 |
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/8556 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/8556 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/8556/6115 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/8556/4298 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/8556/4299 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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.45, n.10, out. 2010; 1095-1101 Pesquisa Agropecuária Brasileira; v.45, n.10, out. 2010; 1095-1101 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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1793416701083123712 |