Heterosis and combining ability in bell pepper lines with resistance to multiple pathogens

Detalhes bibliográficos
Autor(a) principal: Nogueira, Danilo Gustavo
Data de Publicação: 2018
Outros Autores: Carvalho, Regis de Castro, Maluf, Wilson Roberto, Nogueira, Douglas Willian, Ticona-Benavente, César Augusto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/35140
Resumo: The aim of this study was to develop bell pepper hybrids with resistance to multiple pathogens and make inferences in regard to components of heterosis in hybrids obtained from lines presumed to be resistant to Pepper yellow mosaic virus (PepYMV), Phytophthora capsici, or Meloidogyne incognita. The studies were carried out in a greenhouse. We used ten lines, thirty experimental hybrids, and seven controls (Konan-R, Magali-R, Martha-R, Stephany, Mallorca, Magnata Super, and Criollo de Morelos-334). For all experiments, a randomized block design was used with three replications (with plots composed of 16 plants). For evaluation of the reactions to P. capsici and to PepYMV, the percentages of asymptomatic plants were considered. For evaluation of the reactions to M. incognita, the reproduction index and the reproduction factor of the nematode were calculated. The additive gene effects were important for all the traits evaluated, and for percentage of plants resistant to PepYMV and P. capsici, the non-additive effects were also important. The alleles that control resistance to PepYMV, to P. capsici, and to M. incognita have a degree of dominance near 1, in absolute value, which indicates a favorable situation for obtaining hybrids that accumulate multiple resistance to these pathogens.
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spelling Heterosis and combining ability in bell pepper lines with resistance to multiple pathogensHeterose e capacidade combinatória em linhagens de pimentão com resistência a múltiplos patógenosCapsicum annuumDisease resistancePlant breedingResistência a doençasMelhoramento de plantasThe aim of this study was to develop bell pepper hybrids with resistance to multiple pathogens and make inferences in regard to components of heterosis in hybrids obtained from lines presumed to be resistant to Pepper yellow mosaic virus (PepYMV), Phytophthora capsici, or Meloidogyne incognita. The studies were carried out in a greenhouse. We used ten lines, thirty experimental hybrids, and seven controls (Konan-R, Magali-R, Martha-R, Stephany, Mallorca, Magnata Super, and Criollo de Morelos-334). For all experiments, a randomized block design was used with three replications (with plots composed of 16 plants). For evaluation of the reactions to P. capsici and to PepYMV, the percentages of asymptomatic plants were considered. For evaluation of the reactions to M. incognita, the reproduction index and the reproduction factor of the nematode were calculated. The additive gene effects were important for all the traits evaluated, and for percentage of plants resistant to PepYMV and P. capsici, the non-additive effects were also important. The alleles that control resistance to PepYMV, to P. capsici, and to M. incognita have a degree of dominance near 1, in absolute value, which indicates a favorable situation for obtaining hybrids that accumulate multiple resistance to these pathogens.O objetivo deste trabalho foi desenvolver híbridos de pimentão com resistência a múltiplos patógenos e inferir sobre os componentes da heterose em híbridos obtidos a partir de linhagens presumivelmente resistentes ao Pepper yellow mosaic virus (PepYMV), Phytophthora capsici ou Meloidogyne incognita. Os trabalhos foram realizados em casa de vegetação. Foram utilizadas dez linhagens, trinta híbridos experimentais, e sete testemunhas comerciais (Konan-R, Magali-R, Martha-R, Stephany, Mallorca, Magnata Super e Criollo de Morelos-334). Em todos os experimentos, utilizou-se o delineamento em blocos casualizados, com três repetições (com parcelas de 16 plantas). Na avaliação das reações a P. capsici e ao PepYMV, foram consideradas as percentagens de plantas sem sintomas. Na avaliação das reações a M. incognita, foram calculados o índice de reprodução e o fator de reprodução do nematoide. Os efeitos gênicos aditivos foram importantes para todos os caracteres avaliados e, para percentagem de plantas resistentes a PepYMV e P. capsici, os efeitos gênicos não-aditivos foram também importantes. Os alelos que controlam resistência a PepYMV, a P. capsici e a M. incognita possuem grau de dominância próximo de 1, em valor absoluto, o que indica uma situação favorável à obtenção de híbridos com resistência múltipla a estes patógenos.Universidade Federal do Ceará (UFC)2019-07-01T19:47:17Z2019-07-01T19:47:17Z2018-03info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfNOGUEIRA, D. G. et al. Heterosis and combining ability in bell pepper lines with resistance to multiple pathogens. Revista Ciência Agronômica, Fortaleza, v. 49, n. 1, p. 93-102, Jan./Mar. 2018. DOI: 10.5935/1806-6690.20180011.http://repositorio.ufla.br/jspui/handle/1/35140Revista Ciência Agronômicareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessNogueira, Danilo GustavoCarvalho, Regis de CastroMaluf, Wilson RobertoNogueira, Douglas WillianTicona-Benavente, César Augustoeng2023-05-26T18:45:01Zoai:localhost:1/35140Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-26T18:45:01Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Heterosis and combining ability in bell pepper lines with resistance to multiple pathogens
Heterose e capacidade combinatória em linhagens de pimentão com resistência a múltiplos patógenos
title Heterosis and combining ability in bell pepper lines with resistance to multiple pathogens
spellingShingle Heterosis and combining ability in bell pepper lines with resistance to multiple pathogens
Nogueira, Danilo Gustavo
Capsicum annuum
Disease resistance
Plant breeding
Resistência a doenças
Melhoramento de plantas
title_short Heterosis and combining ability in bell pepper lines with resistance to multiple pathogens
title_full Heterosis and combining ability in bell pepper lines with resistance to multiple pathogens
title_fullStr Heterosis and combining ability in bell pepper lines with resistance to multiple pathogens
title_full_unstemmed Heterosis and combining ability in bell pepper lines with resistance to multiple pathogens
title_sort Heterosis and combining ability in bell pepper lines with resistance to multiple pathogens
author Nogueira, Danilo Gustavo
author_facet Nogueira, Danilo Gustavo
Carvalho, Regis de Castro
Maluf, Wilson Roberto
Nogueira, Douglas Willian
Ticona-Benavente, César Augusto
author_role author
author2 Carvalho, Regis de Castro
Maluf, Wilson Roberto
Nogueira, Douglas Willian
Ticona-Benavente, César Augusto
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Nogueira, Danilo Gustavo
Carvalho, Regis de Castro
Maluf, Wilson Roberto
Nogueira, Douglas Willian
Ticona-Benavente, César Augusto
dc.subject.por.fl_str_mv Capsicum annuum
Disease resistance
Plant breeding
Resistência a doenças
Melhoramento de plantas
topic Capsicum annuum
Disease resistance
Plant breeding
Resistência a doenças
Melhoramento de plantas
description The aim of this study was to develop bell pepper hybrids with resistance to multiple pathogens and make inferences in regard to components of heterosis in hybrids obtained from lines presumed to be resistant to Pepper yellow mosaic virus (PepYMV), Phytophthora capsici, or Meloidogyne incognita. The studies were carried out in a greenhouse. We used ten lines, thirty experimental hybrids, and seven controls (Konan-R, Magali-R, Martha-R, Stephany, Mallorca, Magnata Super, and Criollo de Morelos-334). For all experiments, a randomized block design was used with three replications (with plots composed of 16 plants). For evaluation of the reactions to P. capsici and to PepYMV, the percentages of asymptomatic plants were considered. For evaluation of the reactions to M. incognita, the reproduction index and the reproduction factor of the nematode were calculated. The additive gene effects were important for all the traits evaluated, and for percentage of plants resistant to PepYMV and P. capsici, the non-additive effects were also important. The alleles that control resistance to PepYMV, to P. capsici, and to M. incognita have a degree of dominance near 1, in absolute value, which indicates a favorable situation for obtaining hybrids that accumulate multiple resistance to these pathogens.
publishDate 2018
dc.date.none.fl_str_mv 2018-03
2019-07-01T19:47:17Z
2019-07-01T19:47:17Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv NOGUEIRA, D. G. et al. Heterosis and combining ability in bell pepper lines with resistance to multiple pathogens. Revista Ciência Agronômica, Fortaleza, v. 49, n. 1, p. 93-102, Jan./Mar. 2018. DOI: 10.5935/1806-6690.20180011.
http://repositorio.ufla.br/jspui/handle/1/35140
identifier_str_mv NOGUEIRA, D. G. et al. Heterosis and combining ability in bell pepper lines with resistance to multiple pathogens. Revista Ciência Agronômica, Fortaleza, v. 49, n. 1, p. 93-102, Jan./Mar. 2018. DOI: 10.5935/1806-6690.20180011.
url http://repositorio.ufla.br/jspui/handle/1/35140
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal do Ceará (UFC)
publisher.none.fl_str_mv Universidade Federal do Ceará (UFC)
dc.source.none.fl_str_mv Revista Ciência Agronômica
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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