Genetic parameters and genotype-environment interaction in clonal trials of Cedrela odorata L.
To increase the productivity of commercial plantations, it is necessary to carry out genetic improvement activities, for which it is necessary to estimate genetic parameters. In Mexico, superior growth clones of Cedrela odorata L. have been generated that require evaluation under various environment...
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| Formaat: | Online |
| Taal: | spa |
| Gepubliceerd in: |
Instituto de Ecología, A.C.
2022
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| Online toegang: | https://myb.ojs.inecol.mx/index.php/myb/article/view/2318 |
| _version_ | 1799769424531554304 |
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| author | Olvera-Moreno, Susana López-Upton , Javier Sánchez-Monsalvo, Vicente Jiménez-Casas , Marcos |
| author_facet | Olvera-Moreno, Susana López-Upton , Javier Sánchez-Monsalvo, Vicente Jiménez-Casas , Marcos |
| author_sort | Olvera-Moreno, Susana |
| collection | MYB |
| description | To increase the productivity of commercial plantations, it is necessary to carry out genetic improvement activities, for which it is necessary to estimate genetic parameters. In Mexico, superior growth clones of Cedrela odorata L. have been generated that require evaluation under various environmental conditions. The objective was to estimate heritability, genetic and phenotypic correlation and genotype-environment interaction of 14 morphological and growth characters of C. odorata in two clonal trials at seven years. Clones were grafted at the age of four months. Ninety clones planted in two different environments, Isla, Veracruz and San Francisco, Campeche, were evaluated. In Isla 12 heritability values were higher. The highest heritabilities at both sites were estimated for petiolule length, volume, and stem diameter. Phenotypic and genetic correlations between growth traits were high and positive, but between growth traits and stem, crown, and leaf traits, they were low to moderate. The volume used as selection criterion would not negatively affect the response of any of the variables evaluated. Despite the environmental differences, high stability was determined in the behavior of the selected clones, except for four higher volume interactive clones in San Francisco. With the exclusion of three of the most interactive clones for volume, the genotype-environment interaction of this characteristic is almost totally reduced. Thus, to avoid genetic loss, it is suggested to use these clones only in Campeche sites, and the other superior ones in both sites. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-2318 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2022 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-23182022-11-29T22:14:11Z Genetic parameters and genotype-environment interaction in clonal trials of Cedrela odorata L. Parámetros genéticos e interacción genotipo-ambiente en ensayos clonales de Cedrela odorata L. Olvera-Moreno, Susana López-Upton , Javier Sánchez-Monsalvo, Vicente Jiménez-Casas , Marcos clones control genético correlación genética ecovalencia estabilidad genética heredabilidad clones genetic control genetic correlation ecovalence genetic stability heritability To increase the productivity of commercial plantations, it is necessary to carry out genetic improvement activities, for which it is necessary to estimate genetic parameters. In Mexico, superior growth clones of Cedrela odorata L. have been generated that require evaluation under various environmental conditions. The objective was to estimate heritability, genetic and phenotypic correlation and genotype-environment interaction of 14 morphological and growth characters of C. odorata in two clonal trials at seven years. Clones were grafted at the age of four months. Ninety clones planted in two different environments, Isla, Veracruz and San Francisco, Campeche, were evaluated. In Isla 12 heritability values were higher. The highest heritabilities at both sites were estimated for petiolule length, volume, and stem diameter. Phenotypic and genetic correlations between growth traits were high and positive, but between growth traits and stem, crown, and leaf traits, they were low to moderate. The volume used as selection criterion would not negatively affect the response of any of the variables evaluated. Despite the environmental differences, high stability was determined in the behavior of the selected clones, except for four higher volume interactive clones in San Francisco. With the exclusion of three of the most interactive clones for volume, the genotype-environment interaction of this characteristic is almost totally reduced. Thus, to avoid genetic loss, it is suggested to use these clones only in Campeche sites, and the other superior ones in both sites. Para aumentar la productividad de las plantaciones comerciales es necesario realizar actividades de mejoramiento genético, para lo cual se necesita estimar parámetros genéticos. En México se han generado clones de crecimiento superior de Cedrela odorata L. que requieren evaluación en diversas condiciones ambientales. El objetivo de este estudio fue estimar heredabilidad, correlación genética y fenotípica e interacción genotipo-ambiente de 14 caracteres morfológicos y de crecimiento de Cedrela odorata L. en dos ensayos clonales a siete años. Los clones se formaron por injertos a la edad de cuatro meses. Se evaluaron 90 clones plantados en dos ambientes diferentes: Isla, Veracruz y San Francisco, Campeche. En Isla, 12 valores de heredabilidad resultaron mayores. Las heredabilidades más altas en ambos sitios se estimaron para la longitud del peciolulo, volumen y diámetro del fuste. Las correlaciones fenotípicas y genéticas entre las características de crecimiento fueron altas y positivas, mientras que entre las de crecimiento y las de fuste, copa y hojas fueron de bajas a moderadas. El volumen usado como criterio de selección no afectaría negativamente la respuesta de ninguna de las variables evaluadas. Pese a las diferencias ambientales se determinó estabilidad alta en el comportamiento de los clones seleccionados, excepto por cuatro clones interactivos de volumen superior en San Francisco. Con la exclusión de tres de los clones más interactivos para volumen se reduce casi totalmente la interacción genotipo-ambiente de esta característica. Para evitar pérdida genética se sugiere usar estos clones solamente en sitios de Campeche, y los demás superiores en ambos sitios. Instituto de Ecología, A.C. 2022-07-20 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf text/xml https://myb.ojs.inecol.mx/index.php/myb/article/view/2318 10.21829/myb.2022.2812318 Madera y Bosques; Vol. 28 No. 1 (2022): Spring 2022; e2812318 Madera y Bosques; Vol. 28 Núm. 1 (2022): Primavera 2022; e2812318 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/2318/2378 https://myb.ojs.inecol.mx/index.php/myb/article/view/2318/2392 10.21829/myb.2019.252726 10.21829/myb.2019.252791 http://creativecommons.org/licenses/by-nc-sa/4.0 |
| spellingShingle | Olvera-Moreno, Susana López-Upton , Javier Sánchez-Monsalvo, Vicente Jiménez-Casas , Marcos Genetic parameters and genotype-environment interaction in clonal trials of Cedrela odorata L. |
| title | Genetic parameters and genotype-environment interaction in clonal trials of Cedrela odorata L. |
| title_full | Genetic parameters and genotype-environment interaction in clonal trials of Cedrela odorata L. |
| title_fullStr | Genetic parameters and genotype-environment interaction in clonal trials of Cedrela odorata L. |
| title_full_unstemmed | Genetic parameters and genotype-environment interaction in clonal trials of Cedrela odorata L. |
| title_short | Genetic parameters and genotype-environment interaction in clonal trials of Cedrela odorata L. |
| title_sort | genetic parameters and genotype-environment interaction in clonal trials of cedrela odorata l. |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/2318 |
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