Inheritance of coffee leaf rust resistance in Timor Hybrid UFV 443-03

Detalhes bibliográficos
Autor(a) principal: Capucho, Alexandre Sandri
Data de Publicação: 2010
Outros Autores: Caixeta, Eveline Teixeira, Zambolim, Eunize Maciel, Zambolim, Laércio
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/1513
Resumo: The aim of this work was to characterize the resistance inheritance of the Timor Hybrid UFV 443-03 to coffee leaf rust (Hemileia vastatrix). For this, the race II and pathotype 001 of coffee leaf rust were inoculated in 246 F2 plants, 115 susceptible backcrossing (BCS) plants, and 87 resistant backcrossing (BCR) plants, derived from the crossing between the susceptible genotype 'Catuaí Amarelo' IAC 64 and the resistance source Timor Hybrid UFV 443-03. For both inoculums, the 'Catuaí Amarelo' IAC 64 was susceptible, while the Timor Hybrid, the plant representing F1 generation, and the BCR plants were resistant. The F2 plants inoculated with race II presented two significant segregation ratios: 15:1 and 61:3. The resistance inheritance was verified by the inoculation of the BCS plants, which segregated at a 3:1 ratio, an expected pattern for the inheritance controlled by two genes, whereas the segregation hypothesis of 7:1 for three genes was rejected. Two independent and dominant genes confer the genetic resistance of Timor Hybrid UFV 443-03 to race II and pathotype 001 of H. vastatrix.
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spelling Inheritance of coffee leaf rust resistance in Timor Hybrid UFV 443-03Herança da resistência do Híbrido de Timor UFV 443-03 à ferrugem-do-cafeeiroCoffea arabica; Hemileia vastatrix; genetic inheritance; diseases resistance; vertical resistanceCoffea arabica; Hemileia vastatrix; herança genética; resistência a doenças; resistência verticalThe aim of this work was to characterize the resistance inheritance of the Timor Hybrid UFV 443-03 to coffee leaf rust (Hemileia vastatrix). For this, the race II and pathotype 001 of coffee leaf rust were inoculated in 246 F2 plants, 115 susceptible backcrossing (BCS) plants, and 87 resistant backcrossing (BCR) plants, derived from the crossing between the susceptible genotype 'Catuaí Amarelo' IAC 64 and the resistance source Timor Hybrid UFV 443-03. For both inoculums, the 'Catuaí Amarelo' IAC 64 was susceptible, while the Timor Hybrid, the plant representing F1 generation, and the BCR plants were resistant. The F2 plants inoculated with race II presented two significant segregation ratios: 15:1 and 61:3. The resistance inheritance was verified by the inoculation of the BCS plants, which segregated at a 3:1 ratio, an expected pattern for the inheritance controlled by two genes, whereas the segregation hypothesis of 7:1 for three genes was rejected. Two independent and dominant genes confer the genetic resistance of Timor Hybrid UFV 443-03 to race II and pathotype 001 of H. vastatrix.O objetivo deste trabalho foi caracterizar a herança da resistência do Híbrido de Timor UFV 443-03 à ferrugem-do-cafeeiro (Hemileia vastatrix). Para isso, a raça II e o patótipo 001 de ferrugem foram inoculados em 246 plantas da população F2, 115 plantas do retrocruzamento suscetível (RCS) e 87 plantas do retrocruzamento resistente (RCR), originadas do cruzamento entre o genótipo suscetível cv. Catuaí Amarelo IAC 64 e a fonte de resistência Híbrido de Timor UFV 443-03. Para ambos os inóculos, a cv. Catuaí Amarelo IAC 64 foi suscetível, enquanto o Híbrido de Timor UFV 443-03, a planta representante da geração F1 e as plantas do RCR foram resistentes. As plantas F2, quando inoculadas com a raça II, apresentaram dois padrões de segregação significativos: 15:1 e 61:3. A herança da resistência foi confirmada pela inoculação das plantas do RCS, que segregaram na proporção de 3:1, padrão esperado para herança condicionada por dois genes. A hipótese de segregação 7:1 para três genes foi rejeitada. Resultados semelhantes foram obtidos para o patótipo 001. Dois genes dominantes e independentes conferem a resistência genética do Híbrido de Timor UFV 443-03 à raça II e ao patótipo 001 de H. vastatrix.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraFundação de Amparo à Pesquisa do Estado de Minas GeraisConsórcio Brasileiro de Pesquisa e Desenvolvimento do CaféCapucho, Alexandre SandriCaixeta, Eveline TeixeiraZambolim, Eunize MacielZambolim, Laércio2010-11-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/1513Pesquisa Agropecuaria Brasileira; v.44, n.3, mar. 2009; 276-282Pesquisa Agropecuária Brasileira; v.44, n.3, mar. 2009; 276-2821678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/1513/5677info:eu-repo/semantics/openAccess2014-12-10T15:58:55Zoai:ojs.seer.sct.embrapa.br:article/1513Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-12-10T15:58:55Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Inheritance of coffee leaf rust resistance in Timor Hybrid UFV 443-03
Herança da resistência do Híbrido de Timor UFV 443-03 à ferrugem-do-cafeeiro
title Inheritance of coffee leaf rust resistance in Timor Hybrid UFV 443-03
spellingShingle Inheritance of coffee leaf rust resistance in Timor Hybrid UFV 443-03
Capucho, Alexandre Sandri
Coffea arabica; Hemileia vastatrix; genetic inheritance; diseases resistance; vertical resistance
Coffea arabica; Hemileia vastatrix; herança genética; resistência a doenças; resistência vertical
title_short Inheritance of coffee leaf rust resistance in Timor Hybrid UFV 443-03
title_full Inheritance of coffee leaf rust resistance in Timor Hybrid UFV 443-03
title_fullStr Inheritance of coffee leaf rust resistance in Timor Hybrid UFV 443-03
title_full_unstemmed Inheritance of coffee leaf rust resistance in Timor Hybrid UFV 443-03
title_sort Inheritance of coffee leaf rust resistance in Timor Hybrid UFV 443-03
author Capucho, Alexandre Sandri
author_facet Capucho, Alexandre Sandri
Caixeta, Eveline Teixeira
Zambolim, Eunize Maciel
Zambolim, Laércio
author_role author
author2 Caixeta, Eveline Teixeira
Zambolim, Eunize Maciel
Zambolim, Laércio
author2_role author
author
author
dc.contributor.none.fl_str_mv
Fundação de Amparo à Pesquisa do Estado de Minas Gerais
Consórcio Brasileiro de Pesquisa e Desenvolvimento do Café
dc.contributor.author.fl_str_mv Capucho, Alexandre Sandri
Caixeta, Eveline Teixeira
Zambolim, Eunize Maciel
Zambolim, Laércio
dc.subject.por.fl_str_mv Coffea arabica; Hemileia vastatrix; genetic inheritance; diseases resistance; vertical resistance
Coffea arabica; Hemileia vastatrix; herança genética; resistência a doenças; resistência vertical
topic Coffea arabica; Hemileia vastatrix; genetic inheritance; diseases resistance; vertical resistance
Coffea arabica; Hemileia vastatrix; herança genética; resistência a doenças; resistência vertical
description The aim of this work was to characterize the resistance inheritance of the Timor Hybrid UFV 443-03 to coffee leaf rust (Hemileia vastatrix). For this, the race II and pathotype 001 of coffee leaf rust were inoculated in 246 F2 plants, 115 susceptible backcrossing (BCS) plants, and 87 resistant backcrossing (BCR) plants, derived from the crossing between the susceptible genotype 'Catuaí Amarelo' IAC 64 and the resistance source Timor Hybrid UFV 443-03. For both inoculums, the 'Catuaí Amarelo' IAC 64 was susceptible, while the Timor Hybrid, the plant representing F1 generation, and the BCR plants were resistant. The F2 plants inoculated with race II presented two significant segregation ratios: 15:1 and 61:3. The resistance inheritance was verified by the inoculation of the BCS plants, which segregated at a 3:1 ratio, an expected pattern for the inheritance controlled by two genes, whereas the segregation hypothesis of 7:1 for three genes was rejected. Two independent and dominant genes confer the genetic resistance of Timor Hybrid UFV 443-03 to race II and pathotype 001 of H. vastatrix.
publishDate 2010
dc.date.none.fl_str_mv 2010-11-09
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/1513
url https://seer.sct.embrapa.br/index.php/pab/article/view/1513
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/1513/5677
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.44, n.3, mar. 2009; 276-282
Pesquisa Agropecuária Brasileira; v.44, n.3, mar. 2009; 276-282
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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