Genetic parameters for wood quality, growth and branching traits in Pinus patula
Determining genetic parameters for economically important traits related with productivity and wood quality is required to establish the most appropriate breeding strategy in forest trees. In this study, the heritability and genetic and phenotypic correlations of traits related with wood quality (ba...
| Huvudupphovsmän: | , , , , |
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| Materialtyp: | Online |
| Språk: | spa |
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Instituto de Ecología, A.C.
2018
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| Länkar: | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2421595 |
| _version_ | 1799769342135500800 |
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| author | Escobar-Sandoval, Margarita Concepción Vargas-Hernández, J. Jesús López-Upton, Javier Espinosa-Zaragoza, Saúl Borja-de la Rosa, Amparo |
| author_facet | Escobar-Sandoval, Margarita Concepción Vargas-Hernández, J. Jesús López-Upton, Javier Espinosa-Zaragoza, Saúl Borja-de la Rosa, Amparo |
| author_sort | Escobar-Sandoval, Margarita Concepción |
| collection | MYB |
| description | Determining genetic parameters for economically important traits related with productivity and wood quality is required to establish the most appropriate breeding strategy in forest trees. In this study, the heritability and genetic and phenotypic correlations of traits related with wood quality (basic wood density and tracheid length), growth (total stem height, diameter and volume) and branching (branch number, diameter and angle, and number of whorls) were estimated in eight-years-old, open-pollinated progenies of Pinus patula. A broad genetic variation was found for most traits, but genetic control was low to moderate in them (≤ 0.10 h2i ≤ 0.25), except for tracheid length and branch number, which did not show significant (P > 0.05) genetic variation. The correlation structure showed a favorable relationship for most traits, with genetic correlations between -0.23 and 0.98 and phenotypic correlations between 0.02 and 0.93. Results suggest that it is possible to use some of these traits as selection criteria either independently or combined to increase growth and wood quality without causing negative collateral effects on the other economically important traits. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1595 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2018 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-15952022-11-29T23:00:30Z Genetic parameters for wood quality, growth and branching traits in Pinus patula Parámetros genéticos de calidad de madera, crecimiento y ramificación en Pinus patula Escobar-Sandoval, Margarita Concepción Vargas-Hernández, J. Jesús López-Upton, Javier Espinosa-Zaragoza, Saúl Borja-de la Rosa, Amparo branch angle genetic correlation wood density heritability genetic variation ángulo de ramas correlación genética densidad de la madera heredabilidad variación genética Determining genetic parameters for economically important traits related with productivity and wood quality is required to establish the most appropriate breeding strategy in forest trees. In this study, the heritability and genetic and phenotypic correlations of traits related with wood quality (basic wood density and tracheid length), growth (total stem height, diameter and volume) and branching (branch number, diameter and angle, and number of whorls) were estimated in eight-years-old, open-pollinated progenies of Pinus patula. A broad genetic variation was found for most traits, but genetic control was low to moderate in them (≤ 0.10 h2i ≤ 0.25), except for tracheid length and branch number, which did not show significant (P > 0.05) genetic variation. The correlation structure showed a favorable relationship for most traits, with genetic correlations between -0.23 and 0.98 and phenotypic correlations between 0.02 and 0.93. Results suggest that it is possible to use some of these traits as selection criteria either independently or combined to increase growth and wood quality without causing negative collateral effects on the other economically important traits. La determinación de parámetros genéticos en características de valor económico relacionadas con la productividad y calidad de la madera es importante para definir la estrategia más adecuada de mejora genética en especies forestales. En este trabajo se estimó la heredabilidad y las correlaciones genéticas y fenotípicas de características asociadas con la calidad de la madera (densidad de la madera, longitud de traqueidas), el crecimiento (altura total, diámetro normal y volumen del tronco) y la ramificación (número, diámetro y ángulo de ramas, y número de verticilos) en progenies de Pinus patula de ocho años de edad, obtenidas de polinización libre. Se encontró una variabilidad genética amplia en la mayoría de las características, pero el control genético fue de bajo a moderado en ellas (≤ 0.10 h2i ≤ 0.25), excepto para longitud de traqueidas y numero de ramas, en las que no se encontró una variación genética significativa (P > 0.05). La estructura de correlaciones mostró una relación favorable en la mayoría de las características, con correlaciones genéticas que variaron de -0.23 a 0.98 y fenotípicas de 0.02 a 0.93. Los resultados muestran que es posible utilizar algunas características como criterios de selección de manera independiente o combinada para aumentar el crecimiento y calidad de la madera sin ocasionar efectos colaterales negativos en las otras características de importancia económica. Instituto de Ecología, A.C. 2018-06-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf application/xml https://myb.ojs.inecol.mx/index.php/myb/article/view/e2421595 10.21829/myb.2018.2421595 Madera y Bosques; Vol. 24 No. 2 (2018): Summer 2018 On line first Madera y Bosques; Vol. 24 Núm. 2 (2018): Verano 2018 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/e2421595/1772 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2421595/1801 Derechos de autor 2018 Madera y Bosques |
| spellingShingle | Escobar-Sandoval, Margarita Concepción Vargas-Hernández, J. Jesús López-Upton, Javier Espinosa-Zaragoza, Saúl Borja-de la Rosa, Amparo Genetic parameters for wood quality, growth and branching traits in Pinus patula |
| title | Genetic parameters for wood quality, growth and branching traits in Pinus patula |
| title_full | Genetic parameters for wood quality, growth and branching traits in Pinus patula |
| title_fullStr | Genetic parameters for wood quality, growth and branching traits in Pinus patula |
| title_full_unstemmed | Genetic parameters for wood quality, growth and branching traits in Pinus patula |
| title_short | Genetic parameters for wood quality, growth and branching traits in Pinus patula |
| title_sort | genetic parameters for wood quality, growth and branching traits in pinus patula |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2421595 |
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