Publicação
Genetic parameters for growth, wood density and pulp yield in Eucalyptus globulus
| Resumo: | Genetic variation and co-variation among the key pulpwood selection traits for Eucalyptus globulus were estimated for a range of sites in Portugal, with the aim of improving genetic parameters used to predict breeding values and correlated response to selection. The trials comprised clonally replicated full-sib families (eight trials) and unrelated clones (17 trials), and exhibited varying levels of pedigree connectivity. The traits studied were stem diameter at breast height, Pilodyn penetration (an indirect measure of wood basic density) and near infrared reflectance predicted pulp yield. Univariate and multivariate linear mixed models were fitted within and across sites, and estimates of additive genetic, total genetic, environmental and phenotypic variances and covariances were obtained. All traits studied exhibited significant levels of additive genetic variation. The average estimated within-site narrowsense heritability was 0.19±0.03 for diameter and 0.29± 0.03 for Pilodyn penetration, and the pooled estimate for predicted pulp yield was 0.42±0.14. When they could be tested, dominance and epistatic effects were generally not statistically significant, although broad-sense heritability estimates were slightly higher than narrow-sense heritability estimates. Averaged across trials, positive additive (0.64±0.08), total genetic (0.58±0.04), environmental (0.38±0.03) and phenotypic (0.43±0.02) correlation estimates were consistently obtained between diameter and Pilodyn penetration. This data argues for at least some form of pleiotropic relationship between these two traits and that selection for fast growth will adversely affect wood density in this population. Estimates of the across-site genetic correlations for diameter and Pilodyn penetration were high, indicating that the genotype by environment interaction is low across the range of sites tested. This result supports the use of single aggregated selection criteria for growth and wood density across planting environments in Portugal, as opposed to having to select for performance in different environments |
|---|---|
| Autores principais: | Silva, João Costa e |
| Outros Autores: | Borralho, Nuno M.G.; Araújo, José A.; Vaillancourt, René E.; Potts, Brad M. |
| Assunto: | Eucalyptus globulus additive genetic variance dominance epistasis heritability genetic correlation linear mixed models |
| Ano: | 2009 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório da Universidade de Lisboa |
| _version_ | 1866810300552970240 |
|---|---|
| author | Silva, João Costa e |
| author2 | Borralho, Nuno M.G. Araújo, José A. Vaillancourt, René E. Potts, Brad M. |
| author2_role | author author author author |
| author_facet | Silva, João Costa e Borralho, Nuno M.G. Araújo, José A. Vaillancourt, René E. Potts, Brad M. |
| author_role | author |
| contributor_name_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Silva, João Costa e\"},{\"Person.name\":\"Borralho, Nuno M.G.\"},{\"Person.name\":\"Araújo, José A.\"},{\"Person.name\":\"Vaillancourt, René E.\"},{\"Person.name\":\"Potts, Brad M.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| datacite.creators.creator.creatorName.fl_str_mv | Silva, João Costa e Borralho, Nuno M.G. Araújo, José A. Vaillancourt, René E. Potts, Brad M. |
| datacite.date.Accepted.fl_str_mv | 2009-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2015-07-23T15:27:44Z |
| datacite.date.embargoed.fl_str_mv | 2015-07-23T15:27:44Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Eucalyptus globulus additive genetic variance dominance epistasis heritability genetic correlation linear mixed models |
| datacite.titles.title.fl_str_mv | Genetic parameters for growth, wood density and pulp yield in Eucalyptus globulus |
| dc.contributor.none.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| dc.creator.none.fl_str_mv | Silva, João Costa e Borralho, Nuno M.G. Araújo, José A. Vaillancourt, René E. Potts, Brad M. |
| dc.date.Accepted.fl_str_mv | 2009-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2015-07-23T15:27:44Z |
| dc.date.embargoed.fl_str_mv | 2015-07-23T15:27:44Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.5/9052 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Springer |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Eucalyptus globulus additive genetic variance dominance epistasis heritability genetic correlation linear mixed models |
| dc.title.fl_str_mv | Genetic parameters for growth, wood density and pulp yield in Eucalyptus globulus |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Genetic variation and co-variation among the key pulpwood selection traits for Eucalyptus globulus were estimated for a range of sites in Portugal, with the aim of improving genetic parameters used to predict breeding values and correlated response to selection. The trials comprised clonally replicated full-sib families (eight trials) and unrelated clones (17 trials), and exhibited varying levels of pedigree connectivity. The traits studied were stem diameter at breast height, Pilodyn penetration (an indirect measure of wood basic density) and near infrared reflectance predicted pulp yield. Univariate and multivariate linear mixed models were fitted within and across sites, and estimates of additive genetic, total genetic, environmental and phenotypic variances and covariances were obtained. All traits studied exhibited significant levels of additive genetic variation. The average estimated within-site narrowsense heritability was 0.19±0.03 for diameter and 0.29± 0.03 for Pilodyn penetration, and the pooled estimate for predicted pulp yield was 0.42±0.14. When they could be tested, dominance and epistatic effects were generally not statistically significant, although broad-sense heritability estimates were slightly higher than narrow-sense heritability estimates. Averaged across trials, positive additive (0.64±0.08), total genetic (0.58±0.04), environmental (0.38±0.03) and phenotypic (0.43±0.02) correlation estimates were consistently obtained between diameter and Pilodyn penetration. This data argues for at least some form of pleiotropic relationship between these two traits and that selection for fast growth will adversely affect wood density in this population. Estimates of the across-site genetic correlations for diameter and Pilodyn penetration were high, indicating that the genotype by environment interaction is low across the range of sites tested. This result supports the use of single aggregated selection criteria for growth and wood density across planting environments in Portugal, as opposed to having to select for performance in different environments |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ulisboa.pt/bitstreams/6519684a-8ae8-4984-8931-a72e31c2e2e5/download |
| id | ul_3f9c19cf817969a91ce61dd2430dc4e3 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10400.5/9052 |
| instacron_str | ul |
| institution | Universidade de Lisboa |
| instname_str | Universidade de Lisboa |
| language | eng |
| network_acronym_str | ul |
| network_name_str | Repositório da Universidade de Lisboa |
| oai_identifier_str | oai:repositorio.ulisboa.pt:10400.5/9052 |
| organization_str_mv | urn:organizationAcronym:ul |
| person_str_mv | Silva, João Costa e Borralho, Nuno M.G. Araújo, José A. Vaillancourt, René E. Potts, Brad M. |
| publishDate | 2009 |
| publisher.none.fl_str_mv | Springer |
| reponame_str | Repositório da Universidade de Lisboa |
| repository_id_str | urn:repositoryAcronym:ul |
| service_str_mv | urn:repositoryAcronym:ul |
| spelling | engSpringerporGenetic variation and co-variation among the key pulpwood selection traits for Eucalyptus globulus were estimated for a range of sites in Portugal, with the aim of improving genetic parameters used to predict breeding values and correlated response to selection. The trials comprised clonally replicated full-sib families (eight trials) and unrelated clones (17 trials), and exhibited varying levels of pedigree connectivity. The traits studied were stem diameter at breast height, Pilodyn penetration (an indirect measure of wood basic density) and near infrared reflectance predicted pulp yield. Univariate and multivariate linear mixed models were fitted within and across sites, and estimates of additive genetic, total genetic, environmental and phenotypic variances and covariances were obtained. All traits studied exhibited significant levels of additive genetic variation. The average estimated within-site narrowsense heritability was 0.19±0.03 for diameter and 0.29± 0.03 for Pilodyn penetration, and the pooled estimate for predicted pulp yield was 0.42±0.14. When they could be tested, dominance and epistatic effects were generally not statistically significant, although broad-sense heritability estimates were slightly higher than narrow-sense heritability estimates. Averaged across trials, positive additive (0.64±0.08), total genetic (0.58±0.04), environmental (0.38±0.03) and phenotypic (0.43±0.02) correlation estimates were consistently obtained between diameter and Pilodyn penetration. This data argues for at least some form of pleiotropic relationship between these two traits and that selection for fast growth will adversely affect wood density in this population. Estimates of the across-site genetic correlations for diameter and Pilodyn penetration were high, indicating that the genotype by environment interaction is low across the range of sites tested. This result supports the use of single aggregated selection criteria for growth and wood density across planting environments in Portugal, as opposed to having to select for performance in different environmentsapplication/pdfporGenetic parameters for growth, wood density and pulp yield in Eucalyptus globulusSilva, João Costa eBorralho, Nuno M.G.Araújo, José A.Vaillancourt, René E.Potts, Brad M.HostingInstitutionOrganizationalRepositório Científico de Acesso Aberto da ULisboae-mailmailto:repositorio@reitoria.ulisboa.ptrepositorio@reitoria.ulisboa.ptDOIIsPartOf10.1007/s11295-008-0174-92015-07-23T15:27:44Z20092009-01-01T00:00:00ZHandlehttp://hdl.handle.net/10400.5/9052http://purl.org/coar/access_right/c_abf2open accessEucalyptus globulusadditive genetic variancedominanceepistasisheritabilitygenetic correlationlinear mixed models258545 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorio.ulisboa.pt/bitstreams/6519684a-8ae8-4984-8931-a72e31c2e2e5/downloadTree Genetics & Genomes |
| spellingShingle | Genetic parameters for growth, wood density and pulp yield in Eucalyptus globulus Silva, João Costa e Eucalyptus globulus additive genetic variance dominance epistasis heritability genetic correlation linear mixed models |
| status | SINGLETON |
| subject.fl_str_mv | Eucalyptus globulus additive genetic variance dominance epistasis heritability genetic correlation linear mixed models |
| title | Genetic parameters for growth, wood density and pulp yield in Eucalyptus globulus |
| title_full | Genetic parameters for growth, wood density and pulp yield in Eucalyptus globulus |
| title_fullStr | Genetic parameters for growth, wood density and pulp yield in Eucalyptus globulus |
| title_full_unstemmed | Genetic parameters for growth, wood density and pulp yield in Eucalyptus globulus |
| title_short | Genetic parameters for growth, wood density and pulp yield in Eucalyptus globulus |
| title_sort | Genetic parameters for growth, wood density and pulp yield in Eucalyptus globulus |
| topic | Eucalyptus globulus additive genetic variance dominance epistasis heritability genetic correlation linear mixed models |
| topic_facet | Eucalyptus globulus additive genetic variance dominance epistasis heritability genetic correlation linear mixed models |
| url | http://hdl.handle.net/10400.5/9052 |
| visible | 1 |