Genetic diversity of Oreomunnea mexicana (Juglandaceae), a relict species of the Sierra Juárez cloud forest, Oaxaca
Oreomunnea mexicana is relict and threatened species; it constitutes a dominant tree element in the foggy forest of the Sierra Juárez, Oaxaca. The species is emblematic and is incorporated into the worldview of the inhabitants of the region, where, in addition, it performs very important ecological...
| Main Authors: | , , , , , , , , |
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| Format: | Online |
| Language: | spa |
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Instituto de Ecología, A.C.
2020
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| Online Access: | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2621941 |
| _version_ | 1799769384749629440 |
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| author | Pascual-Mendoza, Sunem Clark-Tapia, Ricardo Campos, Jorge E. Monsalvo-Reyes, Alejandro Luna-Krauletz, María Delfina Pacheco-Cruz, Nelly Gorgonio-Ramírez, Montserrat Naranjo-Luna, Francisco Alfonso-Corrado, Cecilia |
| author_facet | Pascual-Mendoza, Sunem Clark-Tapia, Ricardo Campos, Jorge E. Monsalvo-Reyes, Alejandro Luna-Krauletz, María Delfina Pacheco-Cruz, Nelly Gorgonio-Ramírez, Montserrat Naranjo-Luna, Francisco Alfonso-Corrado, Cecilia |
| author_sort | Pascual-Mendoza, Sunem |
| collection | MYB |
| description | Oreomunnea mexicana is relict and threatened species; it constitutes a dominant tree element in the foggy forest of the Sierra Juárez, Oaxaca. The species is emblematic and is incorporated into the worldview of the inhabitants of the region, where, in addition, it performs very important ecological functions and ecosystem services. The aim of the present work was to analyze the diversity and genetic structure, as well as to evaluate the spatial genetic structure on a fine scale using molecular markers for in situ conservation activities. Dominant markers called inter simple sequence repeat were used with which individuals from nine populations (25 per population) and 120 individuals from a plot of 400 m2 were analyzed. The results showed high levels of genetic diversity (He = 0.405 ± 0003) and moderate levels of gene flow (Nm = 2.25) and low genetic differentiation (P < 0.001; 8%). The fine spatial genetic structure showed a random distribution, while the kinship analysis exhibited high genetic similarity among the analyzed individuals. High levels of diversity suggest that the species is not genetically degraded, however, due to its fragmented distribution and high environmental vulnerability, it is suggested for its conservation in situ, priority should be given for immediate protection to the populations of El Relámpago (due to its great genetic diversity), the Panteon and the Orquidiario due to its low genetic diversity and the high vulnerability due to anthropic and environmental disturbance. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1941 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2020 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-19412022-11-29T22:37:43Z Genetic diversity of Oreomunnea mexicana (Juglandaceae), a relict species of the Sierra Juárez cloud forest, Oaxaca Diversidad genética de Oreomunnea mexicana (Juglandaceae), relicta del bosque de niebla de Sierra Juárez, Oaxaca. México Pascual-Mendoza, Sunem Clark-Tapia, Ricardo Campos, Jorge E. Monsalvo-Reyes, Alejandro Luna-Krauletz, María Delfina Pacheco-Cruz, Nelly Gorgonio-Ramírez, Montserrat Naranjo-Luna, Francisco Alfonso-Corrado, Cecilia conservation spatial genetic structure fragmented molecular marker population conservación estructura genética espacial fragmentación marcador molecular poblaciones Oreomunnea mexicana is relict and threatened species; it constitutes a dominant tree element in the foggy forest of the Sierra Juárez, Oaxaca. The species is emblematic and is incorporated into the worldview of the inhabitants of the region, where, in addition, it performs very important ecological functions and ecosystem services. The aim of the present work was to analyze the diversity and genetic structure, as well as to evaluate the spatial genetic structure on a fine scale using molecular markers for in situ conservation activities. Dominant markers called inter simple sequence repeat were used with which individuals from nine populations (25 per population) and 120 individuals from a plot of 400 m2 were analyzed. The results showed high levels of genetic diversity (He = 0.405 ± 0003) and moderate levels of gene flow (Nm = 2.25) and low genetic differentiation (P < 0.001; 8%). The fine spatial genetic structure showed a random distribution, while the kinship analysis exhibited high genetic similarity among the analyzed individuals. High levels of diversity suggest that the species is not genetically degraded, however, due to its fragmented distribution and high environmental vulnerability, it is suggested for its conservation in situ, priority should be given for immediate protection to the populations of El Relámpago (due to its great genetic diversity), the Panteon and the Orquidiario due to its low genetic diversity and the high vulnerability due to anthropic and environmental disturbance. Oreomunnea mexicana es una especie relicta y amenazada, que constituye un elemento arbóreo dominante en el bosque de niebla de la Sierra Juárez, Oaxaca. La especie es emblemática y se encuentra incorporada en la cosmovisión de los habitantes de la región, donde, además, desempeña funciones ecológicas y servicios ecosistémicos muy importantes. El objetivo del presente trabajo fue analizar la diversidad y estructura genética, así como evaluar la estructura genética espacial a escala fina, utilizando marcadores moleculares con fines de conservación in situ. Se utilizaron marcadores dominantes denominados inter simple sequence repeat con los que se analizaron individuos de nueve poblaciones (25 por población) y 120 individuos de una parcela de 400 m2. Los resultados mostraron niveles altos de diversidad genética (He = 0.405 ± 0003) y moderados de flujo génico (Nm = 2.25) y baja diferenciación genética (P < 0.001; 8%). La estructura genética espacial fina mostró una distribución aleatoria, mientras que el análisis de parentesco exhibió alta similitud genética entre los individuos analizados. Los niveles altos de diversidad sugieren que la especie no se encuentra degradada genéticamente, sin embargo, debido a su distribución fragmentada y alta vulnerabilidad ambiental, se sugiere para su conservación in situ, se dé prioridad para su protección inmediata a las poblaciones de El Relámpago (por su gran riqueza alélica), El Panteón y El Orquidiario debido a su baja diversidad genética y por la alta vulnerabilidad por perturbación antrópica y ambiental. Instituto de Ecología, A.C. 2020-04-23 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/e2621941 10.21829/myb.2020.2621941 Madera y Bosques; Vol. 26 No. 2 (2020): Verano 2020 Madera y Bosques; Vol. 26 Núm. 2 (2020): Verano 2020 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/e2621941/2076 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2621941/2188 10.21829/myb.2018.243222 Derechos de autor 2020 Madera y Bosques http://creativecommons.org/licenses/by-nc-sa/4.0 |
| spellingShingle | Pascual-Mendoza, Sunem Clark-Tapia, Ricardo Campos, Jorge E. Monsalvo-Reyes, Alejandro Luna-Krauletz, María Delfina Pacheco-Cruz, Nelly Gorgonio-Ramírez, Montserrat Naranjo-Luna, Francisco Alfonso-Corrado, Cecilia Genetic diversity of Oreomunnea mexicana (Juglandaceae), a relict species of the Sierra Juárez cloud forest, Oaxaca |
| title | Genetic diversity of Oreomunnea mexicana (Juglandaceae), a relict species of the Sierra Juárez cloud forest, Oaxaca |
| title_full | Genetic diversity of Oreomunnea mexicana (Juglandaceae), a relict species of the Sierra Juárez cloud forest, Oaxaca |
| title_fullStr | Genetic diversity of Oreomunnea mexicana (Juglandaceae), a relict species of the Sierra Juárez cloud forest, Oaxaca |
| title_full_unstemmed | Genetic diversity of Oreomunnea mexicana (Juglandaceae), a relict species of the Sierra Juárez cloud forest, Oaxaca |
| title_short | Genetic diversity of Oreomunnea mexicana (Juglandaceae), a relict species of the Sierra Juárez cloud forest, Oaxaca |
| title_sort | genetic diversity of oreomunnea mexicana (juglandaceae), a relict species of the sierra juárez cloud forest, oaxaca |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2621941 |
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