Expected gains with selection from the simultaneous selection of different quantitative traits in progenies of Eucalyptus camaldulensis DEHNH
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.18671/scifor.v47n124.09 http://hdl.handle.net/11449/198456 |
Resumo: | This study aimed to compare the gains obtained with three selection indices and direct and indirect selection applied to the individual genetic values in progeny tests of E. camaldulensis, at the age of six; for shape of stem, diameter at chest height and total height of the trees. The tests were implanted in a randomized complete block design, with 133 progenies and 3.0 m x 1.8 m spacing. Trial 1 (EXP 1) was composed of experimental plots of 5 plants and four replications and in Trial 2 (EXP 2) single tree plot and 20 replicates were used. Estimates of variance components and genetic parameters were obtained using the REML/BLUP method. Selection of individuals was performed based on the individual additive genetic values, through direct and indirect selection of characters and in parallel through the indices of selection of the sum of ranks, expected genetic gains and the sum of Z. The selection indices, in comparison to direct and indirect selection, provide more balanced gains. The index of the sum of ranks and index Z were those that provided greater genetic gains with simultaneous selection in EXP1 (12,74%) and EXP 2 (20,82%), respectively. The selection index Z and sum of ranks were those that presented the most similar results among the selection methods tested in the individual selection by the additive genetic value. EXP 2, because it presents higher values for estimated heritability, provided greater gains with selection. |
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Expected gains with selection from the simultaneous selection of different quantitative traits in progenies of Eucalyptus camaldulensis DEHNHGanhos esperados com a seleção a partir da seleção simultânea de diferentes caracteres quantitativos em progênies de Eucalyptus camaldulensis DEHNHDirect selectionProgeny testSelection indexThis study aimed to compare the gains obtained with three selection indices and direct and indirect selection applied to the individual genetic values in progeny tests of E. camaldulensis, at the age of six; for shape of stem, diameter at chest height and total height of the trees. The tests were implanted in a randomized complete block design, with 133 progenies and 3.0 m x 1.8 m spacing. Trial 1 (EXP 1) was composed of experimental plots of 5 plants and four replications and in Trial 2 (EXP 2) single tree plot and 20 replicates were used. Estimates of variance components and genetic parameters were obtained using the REML/BLUP method. Selection of individuals was performed based on the individual additive genetic values, through direct and indirect selection of characters and in parallel through the indices of selection of the sum of ranks, expected genetic gains and the sum of Z. The selection indices, in comparison to direct and indirect selection, provide more balanced gains. The index of the sum of ranks and index Z were those that provided greater genetic gains with simultaneous selection in EXP1 (12,74%) and EXP 2 (20,82%), respectively. The selection index Z and sum of ranks were those that presented the most similar results among the selection methods tested in the individual selection by the additive genetic value. EXP 2, because it presents higher values for estimated heritability, provided greater gains with selection.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundação de Apoio ao Ensino, Pesquisa e Extensão de ItajubáFaculdade de Ciências Agrárias e Veterinárias - FCAV Universidade Estadual Paulista “Júlio de Mesquita Filho” - UnespFaculdade de Engenharia do Campus de Ilha de Solteira - FEIS Universidade Estadual Paulista “Júlio de Mesquita Filho” - Unesp.Faculdade de Ciências Agrárias e Veterinárias - FCAV Universidade Estadual Paulista “Júlio de Mesquita Filho” - UnespFaculdade de Engenharia do Campus de Ilha de Solteira - FEIS Universidade Estadual Paulista “Júlio de Mesquita Filho” - Unesp.Universidade Estadual Paulista (Unesp)de Medeiros Silva, William [UNESP]de Moraes, Luiz Teixeira [UNESP]da Silva Gonzaga, Janete Motta [UNESP]Pupin, Silvelise [UNESP]Pavan, Bruno Ettore [UNESP]2020-12-12T01:13:23Z2020-12-12T01:13:23Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article678-685http://dx.doi.org/10.18671/scifor.v47n124.09Scientia Forestalis/Forest Sciences, v. 47, n. 124, p. 678-685, 2019.1413-9324http://hdl.handle.net/11449/19845610.18671/scifor.v47n124.092-s2.0-85078543627Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporScientia Forestalis/Forest Sciencesinfo:eu-repo/semantics/openAccess2021-10-22T12:11:21Zoai:repositorio.unesp.br:11449/198456Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T12:11:21Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Expected gains with selection from the simultaneous selection of different quantitative traits in progenies of Eucalyptus camaldulensis DEHNH Ganhos esperados com a seleção a partir da seleção simultânea de diferentes caracteres quantitativos em progênies de Eucalyptus camaldulensis DEHNH |
title |
Expected gains with selection from the simultaneous selection of different quantitative traits in progenies of Eucalyptus camaldulensis DEHNH |
spellingShingle |
Expected gains with selection from the simultaneous selection of different quantitative traits in progenies of Eucalyptus camaldulensis DEHNH de Medeiros Silva, William [UNESP] Direct selection Progeny test Selection index |
title_short |
Expected gains with selection from the simultaneous selection of different quantitative traits in progenies of Eucalyptus camaldulensis DEHNH |
title_full |
Expected gains with selection from the simultaneous selection of different quantitative traits in progenies of Eucalyptus camaldulensis DEHNH |
title_fullStr |
Expected gains with selection from the simultaneous selection of different quantitative traits in progenies of Eucalyptus camaldulensis DEHNH |
title_full_unstemmed |
Expected gains with selection from the simultaneous selection of different quantitative traits in progenies of Eucalyptus camaldulensis DEHNH |
title_sort |
Expected gains with selection from the simultaneous selection of different quantitative traits in progenies of Eucalyptus camaldulensis DEHNH |
author |
de Medeiros Silva, William [UNESP] |
author_facet |
de Medeiros Silva, William [UNESP] de Moraes, Luiz Teixeira [UNESP] da Silva Gonzaga, Janete Motta [UNESP] Pupin, Silvelise [UNESP] Pavan, Bruno Ettore [UNESP] |
author_role |
author |
author2 |
de Moraes, Luiz Teixeira [UNESP] da Silva Gonzaga, Janete Motta [UNESP] Pupin, Silvelise [UNESP] Pavan, Bruno Ettore [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
de Medeiros Silva, William [UNESP] de Moraes, Luiz Teixeira [UNESP] da Silva Gonzaga, Janete Motta [UNESP] Pupin, Silvelise [UNESP] Pavan, Bruno Ettore [UNESP] |
dc.subject.por.fl_str_mv |
Direct selection Progeny test Selection index |
topic |
Direct selection Progeny test Selection index |
description |
This study aimed to compare the gains obtained with three selection indices and direct and indirect selection applied to the individual genetic values in progeny tests of E. camaldulensis, at the age of six; for shape of stem, diameter at chest height and total height of the trees. The tests were implanted in a randomized complete block design, with 133 progenies and 3.0 m x 1.8 m spacing. Trial 1 (EXP 1) was composed of experimental plots of 5 plants and four replications and in Trial 2 (EXP 2) single tree plot and 20 replicates were used. Estimates of variance components and genetic parameters were obtained using the REML/BLUP method. Selection of individuals was performed based on the individual additive genetic values, through direct and indirect selection of characters and in parallel through the indices of selection of the sum of ranks, expected genetic gains and the sum of Z. The selection indices, in comparison to direct and indirect selection, provide more balanced gains. The index of the sum of ranks and index Z were those that provided greater genetic gains with simultaneous selection in EXP1 (12,74%) and EXP 2 (20,82%), respectively. The selection index Z and sum of ranks were those that presented the most similar results among the selection methods tested in the individual selection by the additive genetic value. EXP 2, because it presents higher values for estimated heritability, provided greater gains with selection. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 2020-12-12T01:13:23Z 2020-12-12T01:13:23Z |
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 |
http://dx.doi.org/10.18671/scifor.v47n124.09 Scientia Forestalis/Forest Sciences, v. 47, n. 124, p. 678-685, 2019. 1413-9324 http://hdl.handle.net/11449/198456 10.18671/scifor.v47n124.09 2-s2.0-85078543627 |
url |
http://dx.doi.org/10.18671/scifor.v47n124.09 http://hdl.handle.net/11449/198456 |
identifier_str_mv |
Scientia Forestalis/Forest Sciences, v. 47, n. 124, p. 678-685, 2019. 1413-9324 10.18671/scifor.v47n124.09 2-s2.0-85078543627 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Scientia Forestalis/Forest Sciences |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
678-685 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803045953228242944 |