Publicación: Caracterización genética de Pinus maximinoi (H.E. Moore) en el noroccidente de Guatemala utilizando marcadores moleculares
| dc.contributor.advisor | Zamora Jerez, Alejandra | |
| dc.contributor.author | Pinzón Colón, Johan Ariel | |
| dc.contributor.jury | Morales Santiago, Miguel | |
| dc.contributor.jury | Miguel Ros, Floridalma | |
| dc.contributor.jury | Zamora Jerez, Alejandra | |
| dc.date.accessioned | 2026-07-06T15:28:26Z | |
| dc.date.issued | 2026 | |
| dc.description | Formato PDF digital — 57 páginas — incluye gráficos, tablas y referencias bibliográficas. | |
| dc.description.abstract | Pinus maximinoi es una especie forestal con alta importancia económica, ecológica y cultural en Guatemala debido a su rápido crecimiento, adaptabilidad y uso en programas de reforestación y producción maderable. Sin embargo, existe poca información sobre su diversidad genética, lo que representa un desafío para su manejo y conservación a largo plazo. Este estudio tuvo como objetivo caracterizar la diversidad genética de poblaciones silvestres y manejadas de P. maximinoi en la región VII del INAB, específicamente en Huehuetenango y Quiché, mediante el uso de marcadores moleculares microsatélites. Se colectaron muestras de acículas en cuatro poblaciones y se compararon tres protocolos de extracción de ADN, seleccionando el método modificado por el Laboratorio de Protección Vegetal de UVG por presentar mejores concentraciones y purezas. Se utilizaron seis microsatélites funcionales para los análisis, cuyos electroferogramas fueron procesados en R. Los resultados indicaron una diversidad genética moderada (Na = 6.65, He = 0.785), pero con déficit de heterocigotos y coeficientes de fijación elevados en las poblaciones, lo que sugiere posible endogamia o flujo genético limitado. La diferenciación entre poblaciones fue baja a moderada (Fst entre 0.087–0.113), indicando similitud genética general. Se recomienda promover conectividad, manejo genético y estrategias de conservación para prevenir erosión genética futura. | spa |
| dc.description.abstract | Pinus maximinoi is a forest tree species of considerable economic, ecological, and cultural importance in Guatemala due to its rapid growth, adaptability, and widespread use in reforestation programs and timber production. However, limited information is available regarding its genetic diversity, posing challenges for its long-term management and conservation. This study aimed to characterize the genetic diversity of wild and managed populations of P. maximinoi in INAB Region VII, specifically in the departments of Huehuetenango and Quiché, using microsatellite molecular markers. Needle samples were collected from four populations, and three DNA extraction protocols were compared. The modified protocol developed by the UVG Plant Protection Laboratory was selected because it produced higher DNA concentrations and greater purity. Six functional microsatellite markers were used for the genetic analyses, and the resulting electropherograms were processed using R. The results revealed moderate genetic diversity (Na = 6.65, He = 0.785), accompanied by a deficit of heterozygotes and high fixation coefficients across populations, suggesting possible inbreeding or restricted gene flow. Genetic differentiation among populations was low to moderate (F<sub>ST</sub> = 0.087–0.113), indicating overall genetic similarity. These findings highlight the importance of promoting habitat connectivity, implementing genetic management practices, and developing conservation strategies to prevent future genetic erosion in P. maximinoi populations. | eng |
| dc.description.degreelevel | Pregrado | |
| dc.description.degreename | Licenciado en Biología | |
| dc.format.extent | 57 p. | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.uri | https://repositorio.uvg.edu.gt/handle/123456789/6618 | |
| dc.language.iso | spa | |
| dc.publisher | Universidad del Valle de Guatemala | |
| dc.publisher.branch | Campus Central | |
| dc.publisher.faculty | Facultad de Ciencias y Humanidades | |
| dc.publisher.place | Guatemala | |
| dc.publisher.program | Licenciatura en Biología | |
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| dc.rights.accessrights | info:eu-repo/semantics/openAccess | |
| dc.rights.coar | http://purl.org/coar/access_right/c_abf2 | |
| dc.rights.license | Atribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0) | |
| dc.rights.uri | https://creativecommons.org/licenses/by-nc-nd/4.0/ | |
| dc.subject.armarc | Pinos | |
| dc.subject.armarc | Biotecnología | |
| dc.subject.armarc | Genética forestal | |
| dc.subject.armarc | Ingeniería forestal | |
| dc.subject.armarc | Genetic diversity -- Guatemala | |
| dc.subject.armarc | Microsatellites (Genetics) -- Guatemala | |
| dc.subject.armarc | Conservación de los recursos genéticos | |
| dc.subject.armarc | Recursos genéticos forestales -- Conservación -- Guatemala | |
| dc.subject.ddc | 570 - Biología::575 - Partes específicas de y sistemas fisiológicos en plantas | |
| dc.subject.ods | ODS 15: Vida de ecosistemas terrestres. Proteger, restablecer y promover el uso sostenible de los ecosistemas terrestres, gestionar sosteniblemente los bosques, luchar contra la desertificación, detener e invertir la degradación de las tierras y detener la pérdida de biodiversidad | |
| dc.title | Caracterización genética de Pinus maximinoi (H.E. Moore) en el noroccidente de Guatemala utilizando marcadores moleculares | spa |
| dc.title.translated | Genetic characterization of Pinus maximinoi (H.E. Moore) in northwestern Guatemala using molecular markers | |
| dc.type | Trabajo de grado - Pregrado | |
| dc.type.coar | http://purl.org/coar/resource_type/c_7a1f | |
| dc.type.coarversion | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
| dc.type.content | Text | |
| dc.type.driver | info:eu-repo/semantics/bachelorThesis | |
| dc.type.version | info:eu-repo/semantics/publishedVersion | |
| dc.type.visibility | Public Thesis | |
| dspace.entity.type | Publication |
