Genetic parameters for growth, stem straightness, and branch quality for Pinus elliottii var. elliottii × Pinus caribaea var. hondurensis F1 Hybrid in Argentina
Genetic parameters for growth, stem straightness, and branch quality were estimated in five progeny trials of Pinus elliottii var. elliottii (PEE) × Pinus caribaea var. hondurensis (PCH) F1 hybrid measured at ages three, five, and seven years. The trials comprised 133 full-sib families from the tree...
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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Oxford University Press
2019
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| Acceso en línea: | https://academic.oup.com/forestscience/article-abstract/64/6/577/5036543?redirectedFrom=fulltext http://hdl.handle.net/20.500.12123/4521 http://doi.org/10.1093/forsci/fxy021 |
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| author | Belaber, Ector Gauchat, Maria Elena Reis, Hugo D. Borralho, Nuno M. Cappa, Eduardo Pablo |
| author_browse | Belaber, Ector Borralho, Nuno M. Cappa, Eduardo Pablo Gauchat, Maria Elena Reis, Hugo D. |
| author_facet | Belaber, Ector Gauchat, Maria Elena Reis, Hugo D. Borralho, Nuno M. Cappa, Eduardo Pablo |
| author_sort | Belaber, Ector |
| collection | INTA Digital |
| description | Genetic parameters for growth, stem straightness, and branch quality were estimated in five progeny trials of Pinus elliottii var. elliottii (PEE) × Pinus caribaea var. hondurensis (PCH) F1 hybrid measured at ages three, five, and seven years. The trials comprised 133 full-sib families from the tree breeding program initiated by the National Institute of Agricultural Technology. Single-site analyses showed that the average individual-tree narrow- and broad-sense heritability estimates were respectively 0.24 and 0.53 for diameter and 0.34 and 0.47 for total height. Average estimated heritabilities were low to moderate for stem straightness (< 0.18), branch diameter (< 0.26), and branch angle (from 0.28 to 0.33). Bivariate analyses showed that the estimated additive and family genetic correlations between diameter and height were consistently high and positive (> 0.84). However, genetic correlations between growth variables and stem straightness, branch diameter, and branch angle were not significant in general. The average estimated additive genetic correlation between sites was high for growth trait and stem straightness (> 0.70), while for branch diameter and angle, the correlations between sites ranged from 0.19 to 0.99. The implications of these results for genetic improvement strategies based on PEE × PCH F1 hybrid in Argentina are discussed. |
| format | info:ar-repo/semantics/artículo |
| id | INTA4521 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Oxford University Press |
| publisherStr | Oxford University Press |
| record_format | dspace |
| spelling | INTA45212019-03-06T12:49:54Z Genetic parameters for growth, stem straightness, and branch quality for Pinus elliottii var. elliottii × Pinus caribaea var. hondurensis F1 Hybrid in Argentina Belaber, Ector Gauchat, Maria Elena Reis, Hugo D. Borralho, Nuno M. Cappa, Eduardo Pablo Heritability Heredabilidad Hybrid Pine Additive Genetic Correlation Genotype-environment Interaction Tree Breeding Pino Híbrido Correlación Genética Aditiva Interacción Genotipo-ambiente Mejoramiento de Arboles Argentina Genetic parameters for growth, stem straightness, and branch quality were estimated in five progeny trials of Pinus elliottii var. elliottii (PEE) × Pinus caribaea var. hondurensis (PCH) F1 hybrid measured at ages three, five, and seven years. The trials comprised 133 full-sib families from the tree breeding program initiated by the National Institute of Agricultural Technology. Single-site analyses showed that the average individual-tree narrow- and broad-sense heritability estimates were respectively 0.24 and 0.53 for diameter and 0.34 and 0.47 for total height. Average estimated heritabilities were low to moderate for stem straightness (< 0.18), branch diameter (< 0.26), and branch angle (from 0.28 to 0.33). Bivariate analyses showed that the estimated additive and family genetic correlations between diameter and height were consistently high and positive (> 0.84). However, genetic correlations between growth variables and stem straightness, branch diameter, and branch angle were not significant in general. The average estimated additive genetic correlation between sites was high for growth trait and stem straightness (> 0.70), while for branch diameter and angle, the correlations between sites ranged from 0.19 to 0.99. The implications of these results for genetic improvement strategies based on PEE × PCH F1 hybrid in Argentina are discussed. Fil: Belaber, Ector C. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Montecarlo; Argentina Fil: Gauchat, Maria Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Montecarlo; Argentina Fil: Reis, Hugo M. PINDO S.A.; Argentina Fil: Borralho, Nuno M. Cartaxo; Portugal. Universidade Técnica de Lisboa. Instituto Superior de Agronomia. Centro de Estudos Florestais; Portugal Fil: Cappa, Eduardo Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2019-02-28T17:18:45Z 2019-02-28T17:18:45Z 2018-11 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://academic.oup.com/forestscience/article-abstract/64/6/577/5036543?redirectedFrom=fulltext http://hdl.handle.net/20.500.12123/4521 0015-749X http://doi.org/10.1093/forsci/fxy021 eng info:eu-repo/semantics/restrictedAccess application/pdf Argentina (nation) Oxford University Press Forest science 64 (6) : 595-608. (20 November 2018) |
| spellingShingle | Heritability Heredabilidad Hybrid Pine Additive Genetic Correlation Genotype-environment Interaction Tree Breeding Pino Híbrido Correlación Genética Aditiva Interacción Genotipo-ambiente Mejoramiento de Arboles Argentina Belaber, Ector Gauchat, Maria Elena Reis, Hugo D. Borralho, Nuno M. Cappa, Eduardo Pablo Genetic parameters for growth, stem straightness, and branch quality for Pinus elliottii var. elliottii × Pinus caribaea var. hondurensis F1 Hybrid in Argentina |
| title | Genetic parameters for growth, stem straightness, and branch quality for Pinus elliottii var. elliottii × Pinus caribaea var. hondurensis F1 Hybrid in Argentina |
| title_full | Genetic parameters for growth, stem straightness, and branch quality for Pinus elliottii var. elliottii × Pinus caribaea var. hondurensis F1 Hybrid in Argentina |
| title_fullStr | Genetic parameters for growth, stem straightness, and branch quality for Pinus elliottii var. elliottii × Pinus caribaea var. hondurensis F1 Hybrid in Argentina |
| title_full_unstemmed | Genetic parameters for growth, stem straightness, and branch quality for Pinus elliottii var. elliottii × Pinus caribaea var. hondurensis F1 Hybrid in Argentina |
| title_short | Genetic parameters for growth, stem straightness, and branch quality for Pinus elliottii var. elliottii × Pinus caribaea var. hondurensis F1 Hybrid in Argentina |
| title_sort | genetic parameters for growth stem straightness and branch quality for pinus elliottii var elliottii pinus caribaea var hondurensis f1 hybrid in argentina |
| topic | Heritability Heredabilidad Hybrid Pine Additive Genetic Correlation Genotype-environment Interaction Tree Breeding Pino Híbrido Correlación Genética Aditiva Interacción Genotipo-ambiente Mejoramiento de Arboles Argentina |
| url | https://academic.oup.com/forestscience/article-abstract/64/6/577/5036543?redirectedFrom=fulltext http://hdl.handle.net/20.500.12123/4521 http://doi.org/10.1093/forsci/fxy021 |
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