Analysis of genetic diversity in two plantations of Pinus caribaea var. hondurensis = Análise da diversidade genética em dois plantios de Pinus caribaea var. hondurensis
Forest tree breeding activities in plantations with exotic species implies several instances of material selection where genetic variation can be affected. The objective of the work was to verify the genetic variability present in two plantations of Pinus caribaea var. hondurensis by microsatellite...
| Autores principales: | , , , , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
Universidade Federal de Santa María (UFSM), Brasil
2022
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/13493 https://periodicos.ufsm.br/cienciaflorestal/article/view/40930 https://doi.org/10.5902/1980509840930 |
| Sumario: | Forest tree breeding activities in plantations with exotic species implies several instances of material selection where genetic variation can be affected. The objective of the work was to verify the genetic variability present in two plantations of Pinus caribaea var. hondurensis by microsatellite markers, initially designed for Pinus taeda. Thus, 299 individuals were analyzed using eight polymorphic microsatellite markers. The results indicate that both plantations have adequate levels of genetic diversity that are representative of the Pinus genus. Through the Bayesian method, it was possible to detect two different population genetic structure(K = 2) between both plantations analyzed. In conclusion, this study suggests that microsatellites markers are useful tools to monitor genetic variation in genetic breeding programs. The genetic diversity estimated in both plantations is similar and typical for Pinus plantations, and as expected, there was a slight decrease in genetic variability in the commercial plantation in comparation with the base plantation. |
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