Pathway analyses in wheat genotypes under waterlogging stress

Detalhes bibliográficos
Autor(a) principal: Kavalco, Sydney Antonio Frehner
Data de Publicação: 2014
Outros Autores: Figueiredo, Ricardo, Groli, Eder Licieri, Zimmer, Cristiano Mathias, Baretta, Diego, Tessmann, Elisane Weber, Magalhães Júnior, Ariano Martins de, Oliveira, Antonio Costa de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Semina. Ciências Agrárias (Online)
Texto Completo: https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12966
Resumo: Indirect selection can be considered an interesting strategy for plant breeding, especially when an easily measurable/high heritability trait is highly correlated with a target trait which has a lower heritability in segregating populations. The objective of this study was to obtain estimates of phenotypic, genotypic and environmental correlations and to evaluate the partition of genotypic correlations in direct and indirect effects of agronomic variables on the GY variable, through the analysis of two cultivated environments in fifteen wheat segregating populations. The agronomic traits grain yield per plant (GY), number of grains per ear (NGE), grain weight per ear (GWE), thousand grain weight (TGW), number of fertile tillers (NFT), days from emergence to flowering (DEF), days from flowering to maturity (DFM), total development cycle (CYC), and percentage of lodging (LODG), were evaluated in F4 populations under two cropping systems (with and without flooding). In all populations, by means of simple correlations, the selection of more productive plants can be accomplished by indirect selection for NGE, GWE and NFT. Through path analysis, it was possible to identify an indirect effect on GY by NGE. Also, the effect of GWE, NFT, CYC and DEF on the correlation between other characters (NGE x GY, GY x WTG, DFM x GY, GY x CYC and GY x LODG), emphasizing that the NGE, GWE, NFT, DEF and CYC are the main characters to consider for increasing grain yield in wheat.
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spelling Pathway analyses in wheat genotypes under waterlogging stressAnálise de trilha em genótipos de trigo submetidos ao estresse por encharcamentoTriticum aestivum L.Indirect selectionPlant breedingCharacters correlation.Triticum aestivum L.Seleção indiretaMelhoramento de plantasCorrelação entre caracteres.Melhoramento VegetalIndirect selection can be considered an interesting strategy for plant breeding, especially when an easily measurable/high heritability trait is highly correlated with a target trait which has a lower heritability in segregating populations. The objective of this study was to obtain estimates of phenotypic, genotypic and environmental correlations and to evaluate the partition of genotypic correlations in direct and indirect effects of agronomic variables on the GY variable, through the analysis of two cultivated environments in fifteen wheat segregating populations. The agronomic traits grain yield per plant (GY), number of grains per ear (NGE), grain weight per ear (GWE), thousand grain weight (TGW), number of fertile tillers (NFT), days from emergence to flowering (DEF), days from flowering to maturity (DFM), total development cycle (CYC), and percentage of lodging (LODG), were evaluated in F4 populations under two cropping systems (with and without flooding). In all populations, by means of simple correlations, the selection of more productive plants can be accomplished by indirect selection for NGE, GWE and NFT. Through path analysis, it was possible to identify an indirect effect on GY by NGE. Also, the effect of GWE, NFT, CYC and DEF on the correlation between other characters (NGE x GY, GY x WTG, DFM x GY, GY x CYC and GY x LODG), emphasizing that the NGE, GWE, NFT, DEF and CYC are the main characters to consider for increasing grain yield in wheat.A seleção indireta pode ser considerada uma estratégia interessante para o melhoramento de plantas, especialmente quando um caráter de fácil mensuração ou de maior herdabilidade estiver altamente correlacionado com um caráter de interesse, que apresente menor herdabilidade em populações segregantes. Os objetivos deste trabalho consistiram em obter estimativas de coeficientes de correlação fenotípica, genotípica e ambientais e avaliar os desdobramentos das correlações genotípicas em efeitos diretos e indiretos de variáveis agronômicas sobre o rendimento de grãos por meio da análise de dois ambientes de cultivo em quinze populações segregantes de trigo. Os caracteres agronômicos rendimento de grãos por planta (RG), número de grãos por espiga (NGE), peso dos grãos por espiga (PGE), massa de mil grãos (MMG), número de afilhos férteis (NAF), dias da emergência ao florescimento (DEF), dias do florescimento à maturação (DFM), ciclo total de desenvolvimento (CICLO), e acamamento (ACAM), foram avaliados em quinze populações segregantes F4 de trigo sob dois sistemas de cultivo (com e sem encharcamento). Em todas as populações avaliadas, por meio das correlações simples, a seleção de plantas mais produtivas pode ser realizada pela seleção indireta sobre NGE, PGE e NAF. Mediante a análise de trilha foi possível identificar o efeito indireto do caráter NGE sobre RG. Assim como o efeito do PGE, do NAF, do DEF e de CICLO como causadores da formação da correlação entre outros caracteres (NGE x RG, MMG x RG, de DFM x RG, de CICLO x RG e de ACAM x RG), enfatizando que o NGE, o PGE, o NAF, o DEF e que o CICLO são os principais caracteres a serem considerados para aumentar a produtividade de grãos em trigo.UEL2014-08-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Empírica de Campoapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/1296610.5433/1679-0359.2014v35n4p1683Semina: Ciências Agrárias; Vol. 35 No. 4 (2014); 1683-1696Semina: Ciências Agrárias; v. 35 n. 4 (2014); 1683-16961679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12966/pdf_362Copyright (c) 2014 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessKavalco, Sydney Antonio FrehnerFigueiredo, RicardoGroli, Eder LicieriZimmer, Cristiano MathiasBaretta, DiegoTessmann, Elisane WeberMagalhães Júnior, Ariano Martins deOliveira, Antonio Costa de2023-01-16T12:16:52Zoai:ojs.pkp.sfu.ca:article/12966Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2023-01-16T12:16:52Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false
dc.title.none.fl_str_mv Pathway analyses in wheat genotypes under waterlogging stress
Análise de trilha em genótipos de trigo submetidos ao estresse por encharcamento
title Pathway analyses in wheat genotypes under waterlogging stress
spellingShingle Pathway analyses in wheat genotypes under waterlogging stress
Kavalco, Sydney Antonio Frehner
Triticum aestivum L.
Indirect selection
Plant breeding
Characters correlation.
Triticum aestivum L.
Seleção indireta
Melhoramento de plantas
Correlação entre caracteres.
Melhoramento Vegetal
title_short Pathway analyses in wheat genotypes under waterlogging stress
title_full Pathway analyses in wheat genotypes under waterlogging stress
title_fullStr Pathway analyses in wheat genotypes under waterlogging stress
title_full_unstemmed Pathway analyses in wheat genotypes under waterlogging stress
title_sort Pathway analyses in wheat genotypes under waterlogging stress
author Kavalco, Sydney Antonio Frehner
author_facet Kavalco, Sydney Antonio Frehner
Figueiredo, Ricardo
Groli, Eder Licieri
Zimmer, Cristiano Mathias
Baretta, Diego
Tessmann, Elisane Weber
Magalhães Júnior, Ariano Martins de
Oliveira, Antonio Costa de
author_role author
author2 Figueiredo, Ricardo
Groli, Eder Licieri
Zimmer, Cristiano Mathias
Baretta, Diego
Tessmann, Elisane Weber
Magalhães Júnior, Ariano Martins de
Oliveira, Antonio Costa de
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Kavalco, Sydney Antonio Frehner
Figueiredo, Ricardo
Groli, Eder Licieri
Zimmer, Cristiano Mathias
Baretta, Diego
Tessmann, Elisane Weber
Magalhães Júnior, Ariano Martins de
Oliveira, Antonio Costa de
dc.subject.por.fl_str_mv Triticum aestivum L.
Indirect selection
Plant breeding
Characters correlation.
Triticum aestivum L.
Seleção indireta
Melhoramento de plantas
Correlação entre caracteres.
Melhoramento Vegetal
topic Triticum aestivum L.
Indirect selection
Plant breeding
Characters correlation.
Triticum aestivum L.
Seleção indireta
Melhoramento de plantas
Correlação entre caracteres.
Melhoramento Vegetal
description Indirect selection can be considered an interesting strategy for plant breeding, especially when an easily measurable/high heritability trait is highly correlated with a target trait which has a lower heritability in segregating populations. The objective of this study was to obtain estimates of phenotypic, genotypic and environmental correlations and to evaluate the partition of genotypic correlations in direct and indirect effects of agronomic variables on the GY variable, through the analysis of two cultivated environments in fifteen wheat segregating populations. The agronomic traits grain yield per plant (GY), number of grains per ear (NGE), grain weight per ear (GWE), thousand grain weight (TGW), number of fertile tillers (NFT), days from emergence to flowering (DEF), days from flowering to maturity (DFM), total development cycle (CYC), and percentage of lodging (LODG), were evaluated in F4 populations under two cropping systems (with and without flooding). In all populations, by means of simple correlations, the selection of more productive plants can be accomplished by indirect selection for NGE, GWE and NFT. Through path analysis, it was possible to identify an indirect effect on GY by NGE. Also, the effect of GWE, NFT, CYC and DEF on the correlation between other characters (NGE x GY, GY x WTG, DFM x GY, GY x CYC and GY x LODG), emphasizing that the NGE, GWE, NFT, DEF and CYC are the main characters to consider for increasing grain yield in wheat.
publishDate 2014
dc.date.none.fl_str_mv 2014-08-27
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa Empírica de Campo
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12966
10.5433/1679-0359.2014v35n4p1683
url https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12966
identifier_str_mv 10.5433/1679-0359.2014v35n4p1683
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/12966/pdf_362
dc.rights.driver.fl_str_mv Copyright (c) 2014 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2014 Semina: Ciências Agrárias
http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv UEL
publisher.none.fl_str_mv UEL
dc.source.none.fl_str_mv Semina: Ciências Agrárias; Vol. 35 No. 4 (2014); 1683-1696
Semina: Ciências Agrárias; v. 35 n. 4 (2014); 1683-1696
1679-0359
1676-546X
reponame:Semina. Ciências Agrárias (Online)
instname:Universidade Estadual de Londrina (UEL)
instacron:UEL
instname_str Universidade Estadual de Londrina (UEL)
instacron_str UEL
institution UEL
reponame_str Semina. Ciências Agrárias (Online)
collection Semina. Ciências Agrárias (Online)
repository.name.fl_str_mv Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)
repository.mail.fl_str_mv semina.agrarias@uel.br
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