Improving Genetic Analysis of Corymbia citriodora subsp. variegata with Single- and Multiple-Trait Spatial-Competition Models

Environmental heterogeneity and/or genetic and environmental competition were quantified on two growth traits, diameter at breast height and total height, and wood density in a progeny trial of Corymbia citriodora subsp. variegata. Three single-trait mixed models with random spatial and/or competiti...

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Autores principales: Hernandez, Mariano Agustín, Lopez, Juan Adolfo, Cappa, Eduardo Pablo
Formato: Artículo
Lenguaje:Inglés
Publicado: Oxford Academic Press 2019
Materias:
Acceso en línea:http://hdl.handle.net/20.500.12123/6470
https://academic.oup.com/forestscience/article-abstract/65/5/570/5556922
https://doi.org/10.1093/forsci/fxz020
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author Hernandez, Mariano Agustín
Lopez, Juan Adolfo
Cappa, Eduardo Pablo
author_browse Cappa, Eduardo Pablo
Hernandez, Mariano Agustín
Lopez, Juan Adolfo
author_facet Hernandez, Mariano Agustín
Lopez, Juan Adolfo
Cappa, Eduardo Pablo
author_sort Hernandez, Mariano Agustín
collection INTA Digital
description Environmental heterogeneity and/or genetic and environmental competition were quantified on two growth traits, diameter at breast height and total height, and wood density in a progeny trial of Corymbia citriodora subsp. variegata. Three single-trait mixed models with random spatial and/or competition effects were compared to a standard analysis by analyzing fit, dispersion parameters, accuracy of breeding values, genetic gains, and ranking of trees. In addition, a multiple-trait spatial-competition model was fitted to estimate correlations among direct and indirect additive genetic effects, and to explore relations between traits. Single-trait analyses with spatial and/or competition effects outperformed the standard model. However, the performance of these models depended on the sensitivity of each trait to detect each effect. Direct–indirect genetic correlations from the multiple-trait spatial-competition model showed inverse and strong relations among growth traits and wood density, suggesting that growth traits can be affected by competition and environmental heterogeneity, but also wood density might be influenced by these effects. The approach proposed was useful to improve the genetic analysis of the species as well as to gain an understanding of the genetic relations between traits under the influence of environmental heterogeneity and competition.
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institution Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina)
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spelling INTA64702025-07-04T17:53:25Z Improving Genetic Analysis of Corymbia citriodora subsp. variegata with Single- and Multiple-Trait Spatial-Competition Models Hernandez, Mariano Agustín Lopez, Juan Adolfo Cappa, Eduardo Pablo Argentina Correlación Genética Genetic Correlation Wood Density Indirect Genetic Effects Two-dimensional Surface Efectos Genéticos Indirectos Superficie Bidimensional Densidad de Madera Corymbia citriodora subsp. variegata Environmental heterogeneity and/or genetic and environmental competition were quantified on two growth traits, diameter at breast height and total height, and wood density in a progeny trial of Corymbia citriodora subsp. variegata. Three single-trait mixed models with random spatial and/or competition effects were compared to a standard analysis by analyzing fit, dispersion parameters, accuracy of breeding values, genetic gains, and ranking of trees. In addition, a multiple-trait spatial-competition model was fitted to estimate correlations among direct and indirect additive genetic effects, and to explore relations between traits. Single-trait analyses with spatial and/or competition effects outperformed the standard model. However, the performance of these models depended on the sensitivity of each trait to detect each effect. Direct–indirect genetic correlations from the multiple-trait spatial-competition model showed inverse and strong relations among growth traits and wood density, suggesting that growth traits can be affected by competition and environmental heterogeneity, but also wood density might be influenced by these effects. The approach proposed was useful to improve the genetic analysis of the species as well as to gain an understanding of the genetic relations between traits under the influence of environmental heterogeneity and competition. Fil: Hernández, Mariano Agustín. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bella Vista; Argentina Fil: López, Juan Adolfo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bella Vista; Argentina Fil: Cappa, Eduardo Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2019-12-09T10:57:10Z 2019-12-09T10:57:10Z 2019-08-30 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/6470 https://academic.oup.com/forestscience/article-abstract/65/5/570/5556922 1938-3738 0015-749X https://doi.org/10.1093/forsci/fxz020 eng info:eu-repo/semantics/restrictedAccess application/pdf Oxford Academic Press Forest Science 65 (5) : 570-580 (October 2019)
spellingShingle Argentina
Correlación Genética
Genetic Correlation
Wood Density
Indirect Genetic Effects
Two-dimensional Surface
Efectos Genéticos Indirectos
Superficie Bidimensional
Densidad de Madera
Corymbia citriodora subsp. variegata
Hernandez, Mariano Agustín
Lopez, Juan Adolfo
Cappa, Eduardo Pablo
Improving Genetic Analysis of Corymbia citriodora subsp. variegata with Single- and Multiple-Trait Spatial-Competition Models
title Improving Genetic Analysis of Corymbia citriodora subsp. variegata with Single- and Multiple-Trait Spatial-Competition Models
title_full Improving Genetic Analysis of Corymbia citriodora subsp. variegata with Single- and Multiple-Trait Spatial-Competition Models
title_fullStr Improving Genetic Analysis of Corymbia citriodora subsp. variegata with Single- and Multiple-Trait Spatial-Competition Models
title_full_unstemmed Improving Genetic Analysis of Corymbia citriodora subsp. variegata with Single- and Multiple-Trait Spatial-Competition Models
title_short Improving Genetic Analysis of Corymbia citriodora subsp. variegata with Single- and Multiple-Trait Spatial-Competition Models
title_sort improving genetic analysis of corymbia citriodora subsp variegata with single and multiple trait spatial competition models
topic Argentina
Correlación Genética
Genetic Correlation
Wood Density
Indirect Genetic Effects
Two-dimensional Surface
Efectos Genéticos Indirectos
Superficie Bidimensional
Densidad de Madera
Corymbia citriodora subsp. variegata
url http://hdl.handle.net/20.500.12123/6470
https://academic.oup.com/forestscience/article-abstract/65/5/570/5556922
https://doi.org/10.1093/forsci/fxz020
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