Genetic divergence and BLUP selection index for fiber traits in cotton accessions

Detalhes bibliográficos
Autor(a) principal: Resende, Maria Aparecida Vilela de
Data de Publicação: 2014
Outros Autores: Freitas, Joelson André de, Lanza, Marcelo Abreu, Resende, Marcos Deon Vilela de, Azevedo, Camila Ferreira
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/26957
Resumo: Technological cotton fiber traits are essential for the quality and remuneration of its products. This study aimed to estimate the genetic divergence among cotton accessions and assort the best ones, based in a selection index combining all the important traits. A total of 248 cotton accessions were evaluated using multivariate analysis (Mahalanobis distance and Tocher grouping) and a selection index based in average rank via mixed models (REML/BLUP). The Tocher grouping analysis enabled the structuring of the accessions population by allocating them into 14 divergent groups. Selective accuracies were high for all traits, ranging from 0.89 to 0.94, indicating a favorable scenario for selection. Genetic correlations among the six traits were moderate to low, making impossible the breeding of a trait, via indirect selection, in another. The simultaneous selection for fiber traits, concerning the Mulamba and Mock selection index, showed to be promising. The best accessions for the six traits were simultaneously the 4S180, C96480, Giza75, 196Lasani11, Brown Egyptian, Early Fluff 316, C268-80 and 207MG-82607.
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spelling Genetic divergence and BLUP selection index for fiber traits in cotton accessionsDivergência genética e índice de seleção via BLUP em acessos de algodoeiro para características tecnológicas da fibraGossypium hirsutum L.cotton breedingmultivariate analysis.Gossypium hirsutum L.melhoramento de algodãoanálise multivariada.Technological cotton fiber traits are essential for the quality and remuneration of its products. This study aimed to estimate the genetic divergence among cotton accessions and assort the best ones, based in a selection index combining all the important traits. A total of 248 cotton accessions were evaluated using multivariate analysis (Mahalanobis distance and Tocher grouping) and a selection index based in average rank via mixed models (REML/BLUP). The Tocher grouping analysis enabled the structuring of the accessions population by allocating them into 14 divergent groups. Selective accuracies were high for all traits, ranging from 0.89 to 0.94, indicating a favorable scenario for selection. Genetic correlations among the six traits were moderate to low, making impossible the breeding of a trait, via indirect selection, in another. The simultaneous selection for fiber traits, concerning the Mulamba and Mock selection index, showed to be promising. The best accessions for the six traits were simultaneously the 4S180, C96480, Giza75, 196Lasani11, Brown Egyptian, Early Fluff 316, C268-80 and 207MG-82607.As características tecnológicas da fibra do algodoeiro são determinantes da qualidade de seus produtos e de sua remuneração. Este trabalho objetivou estimar a divergência genética entre acessos de algodoeiro e ordenar os melhores, com base em um índice de seleção combinando todas essas características de interesse. Foram avaliados 248 acessos de algodoeiro, empregando-se análise multivariada (distância de Mahalanobis e agrupamento de Tocher) e índice de seleção baseado em rank médio via metodologia de modelos mistos (REML/BLUP). A análise de agrupamento de Tocher permitiu a estruturação populacional dos acessos, resumindo-os em 14 grupos divergentes. As acurácias seletivas foram altas para todas as características avaliadas, variando de 0,89 a 0,94, indicando situação favorável à seleção. As correlações entre as seis variáveis apresentaram magnitudes moderadas a baixas, não sendo possível o melhoramento de uma característica, via seleção indireta, em outra. A seleção simultânea para as características de fibra, com base no índice de seleção de Mulamba e Mock, mostrou-se promissora. Os melhores acessos para as seis variáveis, simultaneamente, foram 4S180, C96480, Giza75, 196Lasani11, Brown Egyptian, Early Fluff 316, C268-80 e 207MG-82607.Escola de Agronomia - Universidade Federal de Goiás2014-10-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Experimental; Métodos Quantitativosapplication/pdfhttps://revistas.ufg.br/pat/article/view/26957Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 44, n. 3, Jul./Sep. 2014; 334-340Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 44, n. 3, jul./set. 2014; 334-340Pesquisa Agropecuária Tropical; v. 44, n. 3, jul./set. 2014; 334-3401983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/26957/17153Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessResende, Maria Aparecida Vilela deFreitas, Joelson André deLanza, Marcelo AbreuResende, Marcos Deon Vilela deAzevedo, Camila Ferreira2020-07-10T16:38:52Zoai:ojs.revistas.ufg.br:article/26957Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:56:05.043492Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv Genetic divergence and BLUP selection index for fiber traits in cotton accessions
Divergência genética e índice de seleção via BLUP em acessos de algodoeiro para características tecnológicas da fibra
title Genetic divergence and BLUP selection index for fiber traits in cotton accessions
spellingShingle Genetic divergence and BLUP selection index for fiber traits in cotton accessions
Resende, Maria Aparecida Vilela de
Gossypium hirsutum L.
cotton breeding
multivariate analysis.
Gossypium hirsutum L.
melhoramento de algodão
análise multivariada.
title_short Genetic divergence and BLUP selection index for fiber traits in cotton accessions
title_full Genetic divergence and BLUP selection index for fiber traits in cotton accessions
title_fullStr Genetic divergence and BLUP selection index for fiber traits in cotton accessions
title_full_unstemmed Genetic divergence and BLUP selection index for fiber traits in cotton accessions
title_sort Genetic divergence and BLUP selection index for fiber traits in cotton accessions
author Resende, Maria Aparecida Vilela de
author_facet Resende, Maria Aparecida Vilela de
Freitas, Joelson André de
Lanza, Marcelo Abreu
Resende, Marcos Deon Vilela de
Azevedo, Camila Ferreira
author_role author
author2 Freitas, Joelson André de
Lanza, Marcelo Abreu
Resende, Marcos Deon Vilela de
Azevedo, Camila Ferreira
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Resende, Maria Aparecida Vilela de
Freitas, Joelson André de
Lanza, Marcelo Abreu
Resende, Marcos Deon Vilela de
Azevedo, Camila Ferreira
dc.subject.por.fl_str_mv Gossypium hirsutum L.
cotton breeding
multivariate analysis.
Gossypium hirsutum L.
melhoramento de algodão
análise multivariada.
topic Gossypium hirsutum L.
cotton breeding
multivariate analysis.
Gossypium hirsutum L.
melhoramento de algodão
análise multivariada.
description Technological cotton fiber traits are essential for the quality and remuneration of its products. This study aimed to estimate the genetic divergence among cotton accessions and assort the best ones, based in a selection index combining all the important traits. A total of 248 cotton accessions were evaluated using multivariate analysis (Mahalanobis distance and Tocher grouping) and a selection index based in average rank via mixed models (REML/BLUP). The Tocher grouping analysis enabled the structuring of the accessions population by allocating them into 14 divergent groups. Selective accuracies were high for all traits, ranging from 0.89 to 0.94, indicating a favorable scenario for selection. Genetic correlations among the six traits were moderate to low, making impossible the breeding of a trait, via indirect selection, in another. The simultaneous selection for fiber traits, concerning the Mulamba and Mock selection index, showed to be promising. The best accessions for the six traits were simultaneously the 4S180, C96480, Giza75, 196Lasani11, Brown Egyptian, Early Fluff 316, C268-80 and 207MG-82607.
publishDate 2014
dc.date.none.fl_str_mv 2014-10-02
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa Experimental; Métodos Quantitativos
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/26957
url https://revistas.ufg.br/pat/article/view/26957
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/26957/17153
dc.rights.driver.fl_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 44, n. 3, Jul./Sep. 2014; 334-340
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 44, n. 3, jul./set. 2014; 334-340
Pesquisa Agropecuária Tropical; v. 44, n. 3, jul./set. 2014; 334-340
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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