Selection of maize inbred lines and gene expression for resistance to ear rot
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/30291 |
Resumo: | In recent years, there has been a large incidence of fungi causing “ear rot” in maize in Brazil, the main fungus being Fusarium verticillioides. The most efficient and competitive alternative for control of this disease consists of using maize hybrids resistant to this pathogen. Thus, the aims of this study were to analyze the genetic variability of maize inbred lines in regard to resistance to ear rot to observe if there is a maternal effect to resistance to ear rot, to study genetic control of the traits evaluated in hybrids originating from inbred lines of the maize breeding program at the Agriculture Department of Universidade Federal de Lavras (Lavras, MG, Brazil), and characterize the gene expression pattern related to the plant defense mechanism against F. verticillioides. High genetic availability was observed for resistance to this disease among the inbred lines evaluated. Considering combined diallel analysis, it was observed that the mean square of general combining ability (GCA) was not significant for the characteristic under study. However, specific combining ability (SCA) was significant, which indicates the predominance of non-additive effects involved in control of the characteristic for the population evaluated. A maternal effect was not observed for the characteristic of ear rot resistance in this study. Inbred lines 22, 58, and 91 showed potential for use in breeding programs aiming at resistance to F. verticillioides. Only two genes, LOX8 and Hsp82, had a satisfactory result that was able to be related to a plant defense mechanism when there is ear rot infection, though expression of these genes was observed in only one susceptible genotype. Thus, the genes LOX8 and Hsp82 are potential molecular markers for selection of maize inbred lines resistant to F. verticillioides. |
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Selection of maize inbred lines and gene expression for resistance to ear rotDiallelRT-qPCRGenetic variabilitySpecific combining ability (SCA)General combining ability (GCA)In recent years, there has been a large incidence of fungi causing “ear rot” in maize in Brazil, the main fungus being Fusarium verticillioides. The most efficient and competitive alternative for control of this disease consists of using maize hybrids resistant to this pathogen. Thus, the aims of this study were to analyze the genetic variability of maize inbred lines in regard to resistance to ear rot to observe if there is a maternal effect to resistance to ear rot, to study genetic control of the traits evaluated in hybrids originating from inbred lines of the maize breeding program at the Agriculture Department of Universidade Federal de Lavras (Lavras, MG, Brazil), and characterize the gene expression pattern related to the plant defense mechanism against F. verticillioides. High genetic availability was observed for resistance to this disease among the inbred lines evaluated. Considering combined diallel analysis, it was observed that the mean square of general combining ability (GCA) was not significant for the characteristic under study. However, specific combining ability (SCA) was significant, which indicates the predominance of non-additive effects involved in control of the characteristic for the population evaluated. A maternal effect was not observed for the characteristic of ear rot resistance in this study. Inbred lines 22, 58, and 91 showed potential for use in breeding programs aiming at resistance to F. verticillioides. Only two genes, LOX8 and Hsp82, had a satisfactory result that was able to be related to a plant defense mechanism when there is ear rot infection, though expression of these genes was observed in only one susceptible genotype. Thus, the genes LOX8 and Hsp82 are potential molecular markers for selection of maize inbred lines resistant to F. verticillioides.Fundação de Pesquisas Científicas de Ribeirão Preto (FUNPEC-RP)2018-08-30T17:34:18Z2018-08-30T17:34:18Z2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfPEREIRA, G. S. et al. Selection of maize inbred lines and gene expression for resistance to ear rot. Genetics and Molecular Research, Ribeirão Preto, v. 16, n. 3, 2017.http://repositorio.ufla.br/jspui/handle/1/30291Genetics and Molecular Researchreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-ShareAlike 4.0 Internationalhttp://creativecommons.org/licenses/by-sa/4.0/info:eu-repo/semantics/openAccessPereira, G. S.Von Pinho, R. G.Von Pinho, Édila Vilela de ResendePires, L. P. M.Bernardo Junior, L. A. Y.Pereira, J. L. A.Melo, M. P.eng2023-05-26T18:42:32Zoai:localhost:1/30291Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-26T18:42:32Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Selection of maize inbred lines and gene expression for resistance to ear rot |
title |
Selection of maize inbred lines and gene expression for resistance to ear rot |
spellingShingle |
Selection of maize inbred lines and gene expression for resistance to ear rot Pereira, G. S. Diallel RT-qPCR Genetic variability Specific combining ability (SCA) General combining ability (GCA) |
title_short |
Selection of maize inbred lines and gene expression for resistance to ear rot |
title_full |
Selection of maize inbred lines and gene expression for resistance to ear rot |
title_fullStr |
Selection of maize inbred lines and gene expression for resistance to ear rot |
title_full_unstemmed |
Selection of maize inbred lines and gene expression for resistance to ear rot |
title_sort |
Selection of maize inbred lines and gene expression for resistance to ear rot |
author |
Pereira, G. S. |
author_facet |
Pereira, G. S. Von Pinho, R. G. Von Pinho, Édila Vilela de Resende Pires, L. P. M. Bernardo Junior, L. A. Y. Pereira, J. L. A. Melo, M. P. |
author_role |
author |
author2 |
Von Pinho, R. G. Von Pinho, Édila Vilela de Resende Pires, L. P. M. Bernardo Junior, L. A. Y. Pereira, J. L. A. Melo, M. P. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Pereira, G. S. Von Pinho, R. G. Von Pinho, Édila Vilela de Resende Pires, L. P. M. Bernardo Junior, L. A. Y. Pereira, J. L. A. Melo, M. P. |
dc.subject.por.fl_str_mv |
Diallel RT-qPCR Genetic variability Specific combining ability (SCA) General combining ability (GCA) |
topic |
Diallel RT-qPCR Genetic variability Specific combining ability (SCA) General combining ability (GCA) |
description |
In recent years, there has been a large incidence of fungi causing “ear rot” in maize in Brazil, the main fungus being Fusarium verticillioides. The most efficient and competitive alternative for control of this disease consists of using maize hybrids resistant to this pathogen. Thus, the aims of this study were to analyze the genetic variability of maize inbred lines in regard to resistance to ear rot to observe if there is a maternal effect to resistance to ear rot, to study genetic control of the traits evaluated in hybrids originating from inbred lines of the maize breeding program at the Agriculture Department of Universidade Federal de Lavras (Lavras, MG, Brazil), and characterize the gene expression pattern related to the plant defense mechanism against F. verticillioides. High genetic availability was observed for resistance to this disease among the inbred lines evaluated. Considering combined diallel analysis, it was observed that the mean square of general combining ability (GCA) was not significant for the characteristic under study. However, specific combining ability (SCA) was significant, which indicates the predominance of non-additive effects involved in control of the characteristic for the population evaluated. A maternal effect was not observed for the characteristic of ear rot resistance in this study. Inbred lines 22, 58, and 91 showed potential for use in breeding programs aiming at resistance to F. verticillioides. Only two genes, LOX8 and Hsp82, had a satisfactory result that was able to be related to a plant defense mechanism when there is ear rot infection, though expression of these genes was observed in only one susceptible genotype. Thus, the genes LOX8 and Hsp82 are potential molecular markers for selection of maize inbred lines resistant to F. verticillioides. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 2018-08-30T17:34:18Z 2018-08-30T17:34:18Z |
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 |
PEREIRA, G. S. et al. Selection of maize inbred lines and gene expression for resistance to ear rot. Genetics and Molecular Research, Ribeirão Preto, v. 16, n. 3, 2017. http://repositorio.ufla.br/jspui/handle/1/30291 |
identifier_str_mv |
PEREIRA, G. S. et al. Selection of maize inbred lines and gene expression for resistance to ear rot. Genetics and Molecular Research, Ribeirão Preto, v. 16, n. 3, 2017. |
url |
http://repositorio.ufla.br/jspui/handle/1/30291 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution-ShareAlike 4.0 International http://creativecommons.org/licenses/by-sa/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-ShareAlike 4.0 International http://creativecommons.org/licenses/by-sa/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Fundação de Pesquisas Científicas de Ribeirão Preto (FUNPEC-RP) |
publisher.none.fl_str_mv |
Fundação de Pesquisas Científicas de Ribeirão Preto (FUNPEC-RP) |
dc.source.none.fl_str_mv |
Genetics and Molecular Research 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 |
_version_ |
1807835161325207552 |