Interação de genótipos de Pinus taeda L. com locais no sul-sudeste do Brasil

Detalhes bibliográficos
Autor(a) principal: Paludzyszyn Filho, Estefano
Data de Publicação: 2015
Outros Autores: Mora, Admir Lopes, Maestri, Romualdo
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/14096
Resumo: Genotype x environment interactions of stem volume were investigated by assessing the variation in 46 open-pollinated loblolly pine (Pinus taeda L.) families from first-generation cloned seed orchard in four genetic trials in the south and south-east Brazil. They were used to obtain least squares and restricted maximum likelihood (REML) estimates of variance components. Familie-by-trial interaction effects were evaluated by adjusting the mixed univariate model that contained data of two and four places tested by the likelihood ratio test. Breeding values from local data (univarate procedure) and predicted to the others sites (multivariate procedure) were obtained from best linear unbiased prediction (BLUP). The adjusted and average (obtained from local and predicted to other sites) breeding values were used to select parents and trees. The interaction effects and the adjusting of the mixed models were statistically significant, respectively, by F test and by likelihood ratio test. The loss of potential gain, sustained by not selecting the best families by site was 3.2%. For parents, the loss in mean productivity by indirect selection was respectively 2.3%. In the individual tree selection for seedling seed orchard, no loss of potential gain was observed when selection was carried by average genetic breeding values. For clonal seed orchard with the selection of ten more greater genetic breeding values trees, the interaction cause a inflation of 2% in the average productivity. In this case, the selection by average breeding values was the best procedure and may prove to be a useful tool, in selection stem volume, when genotype x environment interaction is significant.
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spelling Interação de genótipos de Pinus taeda L. com locais no sul-sudeste do BrasilGenotype by environment interactions in Pinus taeda L. in south and south-east BrazilInteração genótipo x AmbienteMelhoramentoValores genéticosMáxima verossimilhança restritaMelhor predição imparcial linearREMLBLUPRestricted maximum likelihood (REML)Best linear unbiased prediction (BLUP)Interaction genotype x EnvironmentGenotype x Environment interactionGenetic breedingBreeding valuesGenotype x environment interactions of stem volume were investigated by assessing the variation in 46 open-pollinated loblolly pine (Pinus taeda L.) families from first-generation cloned seed orchard in four genetic trials in the south and south-east Brazil. They were used to obtain least squares and restricted maximum likelihood (REML) estimates of variance components. Familie-by-trial interaction effects were evaluated by adjusting the mixed univariate model that contained data of two and four places tested by the likelihood ratio test. Breeding values from local data (univarate procedure) and predicted to the others sites (multivariate procedure) were obtained from best linear unbiased prediction (BLUP). The adjusted and average (obtained from local and predicted to other sites) breeding values were used to select parents and trees. The interaction effects and the adjusting of the mixed models were statistically significant, respectively, by F test and by likelihood ratio test. The loss of potential gain, sustained by not selecting the best families by site was 3.2%. For parents, the loss in mean productivity by indirect selection was respectively 2.3%. In the individual tree selection for seedling seed orchard, no loss of potential gain was observed when selection was carried by average genetic breeding values. For clonal seed orchard with the selection of ten more greater genetic breeding values trees, the interaction cause a inflation of 2% in the average productivity. In this case, the selection by average breeding values was the best procedure and may prove to be a useful tool, in selection stem volume, when genotype x environment interaction is significant.A importância da resposta relativa diferenciada de progênies e de árvores por locais em Pinus taeda L. na perda de potencial genético pela seleção foi estudada no caráter volume de madeira total do tronco, em 46 progênies de meio-irmãos, em quatro locais no sul-sudeste do Brasil. As progênies foram dispostas em nove parcelas lineares, com seis plantas espaçadas em 3 m x 2 m. As análises de variância foram realizadas por local, em conjunto e por locais, dois a dois. As componentes de variância foram estimadas a partir dessas análises e por máxima verossimilhança restrita (REML). Nesse método, foram ajustados modelos estatísticos mistos para a interação das progênies x locais e preditos os valores genéticos aditivos (VG's) pela “melhor predição linear não viciada” (BLUP). A interação foi significativa nas análises de variância conjunta e por locais, dois a dois. O ajuste de modelos mistos também foi significativo pelo teste da razão de verossimilhança. A perda do potencial genético na seleção de progênies com base nas estimativas por REML foi de 3,2%. Na seleção de genitores, a per-da na resposta média, pela seleção por VG’s médios, em vez de VG’s por locais, foi de 2,3%. Na seleção de árvores para pomares de sementes por mudas não ocorreu redução na resposta média. Para pomar clonal de dez árvores, a interação superestimou a resposta média esperada em 2%. Nessa ação de melhoramento, a seleção pelo VG médio incrementou a resposta média em 3%. Esse valor foi considerado, como a perda de potencial genético, pela não seleção pelo VG médio, quando a interação progênies x locais e/ou, o ajuste de modelos são significativos. Sugere-se, o uso do valor genético médio na seleção individual, para maximizar a resposta média esperada.Universidade Federal de Lavras (UFLA)2015-09-152017-08-01T20:13:37Z2017-08-01T20:13:37Z2017-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfPALUDZYSZYN FILHO, E.; MORA, A. L.; MAESTRI, R. Interação de genótipos de Pinus taeda L. com locais no sul-sudeste do Brasil. CERNE, [S.l.], v. 7, n. 1, p. 90-100, 2001.http://repositorio.ufla.br/jspui/handle/1/140962317-63420104-7760reponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAporhttp://www.cerne.ufla.br/site/index.php/CERNE/article/view/368/311Copyright (c) 2015 CERNEAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessPaludzyszyn Filho, EstefanoMora, Admir LopesMaestri, Romualdo2022-03-31T12:40:49Zoai:localhost:1/14096Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2022-03-31T12:40:49Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Interação de genótipos de Pinus taeda L. com locais no sul-sudeste do Brasil
Genotype by environment interactions in Pinus taeda L. in south and south-east Brazil
title Interação de genótipos de Pinus taeda L. com locais no sul-sudeste do Brasil
spellingShingle Interação de genótipos de Pinus taeda L. com locais no sul-sudeste do Brasil
Paludzyszyn Filho, Estefano
Interação genótipo x Ambiente
Melhoramento
Valores genéticos
Máxima verossimilhança restrita
Melhor predição imparcial linear
REML
BLUP
Restricted maximum likelihood (REML)
Best linear unbiased prediction (BLUP)
Interaction genotype x Environment
Genotype x Environment interaction
Genetic breeding
Breeding values
title_short Interação de genótipos de Pinus taeda L. com locais no sul-sudeste do Brasil
title_full Interação de genótipos de Pinus taeda L. com locais no sul-sudeste do Brasil
title_fullStr Interação de genótipos de Pinus taeda L. com locais no sul-sudeste do Brasil
title_full_unstemmed Interação de genótipos de Pinus taeda L. com locais no sul-sudeste do Brasil
title_sort Interação de genótipos de Pinus taeda L. com locais no sul-sudeste do Brasil
author Paludzyszyn Filho, Estefano
author_facet Paludzyszyn Filho, Estefano
Mora, Admir Lopes
Maestri, Romualdo
author_role author
author2 Mora, Admir Lopes
Maestri, Romualdo
author2_role author
author
dc.contributor.author.fl_str_mv Paludzyszyn Filho, Estefano
Mora, Admir Lopes
Maestri, Romualdo
dc.subject.por.fl_str_mv Interação genótipo x Ambiente
Melhoramento
Valores genéticos
Máxima verossimilhança restrita
Melhor predição imparcial linear
REML
BLUP
Restricted maximum likelihood (REML)
Best linear unbiased prediction (BLUP)
Interaction genotype x Environment
Genotype x Environment interaction
Genetic breeding
Breeding values
topic Interação genótipo x Ambiente
Melhoramento
Valores genéticos
Máxima verossimilhança restrita
Melhor predição imparcial linear
REML
BLUP
Restricted maximum likelihood (REML)
Best linear unbiased prediction (BLUP)
Interaction genotype x Environment
Genotype x Environment interaction
Genetic breeding
Breeding values
description Genotype x environment interactions of stem volume were investigated by assessing the variation in 46 open-pollinated loblolly pine (Pinus taeda L.) families from first-generation cloned seed orchard in four genetic trials in the south and south-east Brazil. They were used to obtain least squares and restricted maximum likelihood (REML) estimates of variance components. Familie-by-trial interaction effects were evaluated by adjusting the mixed univariate model that contained data of two and four places tested by the likelihood ratio test. Breeding values from local data (univarate procedure) and predicted to the others sites (multivariate procedure) were obtained from best linear unbiased prediction (BLUP). The adjusted and average (obtained from local and predicted to other sites) breeding values were used to select parents and trees. The interaction effects and the adjusting of the mixed models were statistically significant, respectively, by F test and by likelihood ratio test. The loss of potential gain, sustained by not selecting the best families by site was 3.2%. For parents, the loss in mean productivity by indirect selection was respectively 2.3%. In the individual tree selection for seedling seed orchard, no loss of potential gain was observed when selection was carried by average genetic breeding values. For clonal seed orchard with the selection of ten more greater genetic breeding values trees, the interaction cause a inflation of 2% in the average productivity. In this case, the selection by average breeding values was the best procedure and may prove to be a useful tool, in selection stem volume, when genotype x environment interaction is significant.
publishDate 2015
dc.date.none.fl_str_mv 2015-09-15
2017-08-01T20:13:37Z
2017-08-01T20:13:37Z
2017-08-01
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 PALUDZYSZYN FILHO, E.; MORA, A. L.; MAESTRI, R. Interação de genótipos de Pinus taeda L. com locais no sul-sudeste do Brasil. CERNE, [S.l.], v. 7, n. 1, p. 90-100, 2001.
http://repositorio.ufla.br/jspui/handle/1/14096
identifier_str_mv PALUDZYSZYN FILHO, E.; MORA, A. L.; MAESTRI, R. Interação de genótipos de Pinus taeda L. com locais no sul-sudeste do Brasil. CERNE, [S.l.], v. 7, n. 1, p. 90-100, 2001.
url http://repositorio.ufla.br/jspui/handle/1/14096
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.cerne.ufla.br/site/index.php/CERNE/article/view/368/311
dc.rights.driver.fl_str_mv Copyright (c) 2015 CERNE
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2015 CERNE
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidade Federal de Lavras (UFLA)
publisher.none.fl_str_mv Universidade Federal de Lavras (UFLA)
dc.source.none.fl_str_mv 2317-6342
0104-7760
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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