Diversity, genetic structure, and hybridization in Pinus arizonica and P. durangensis populations
The evaluation of diversity, genetic structure, and the identification of introgressive hybridization may contribute to designing strategies to preserve the genetic richness of forest species. Likewise, the genetic richness contributes significantly to the adaptation of these species to adverse fact...
| Príomhchruthaitheoirí: | , , , , , |
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| Formáid: | Online |
| Teanga: | spa |
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Instituto de Ecología, A.C.
2021
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| Rochtain ar líne: | https://myb.ojs.inecol.mx/index.php/myb/article/view/2170 |
| _version_ | 1799769415203422208 |
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| author | Morales-Nieto, Carlos Raúl Siqueiros-Candia, Minerva Álvarez-Holguín, Alan Gil-Vega, Katia del Carmen Corrales-Lerma, Raúl Martínez-Salvador, Martín |
| author_facet | Morales-Nieto, Carlos Raúl Siqueiros-Candia, Minerva Álvarez-Holguín, Alan Gil-Vega, Katia del Carmen Corrales-Lerma, Raúl Martínez-Salvador, Martín |
| author_sort | Morales-Nieto, Carlos Raúl |
| collection | MYB |
| description | The evaluation of diversity, genetic structure, and the identification of introgressive hybridization may contribute to designing strategies to preserve the genetic richness of forest species. Likewise, the genetic richness contributes significantly to the adaptation of these species to adverse factors or new environmental conditions, such as climate change. Therefore, this study assessed the diversity, genetic structure, and hybridization capacity in Pinus arizonica y P. durangensis population located in Chihuahua, Mexico. Trees from three populations were analyzed through AFLP (Amplified Fragment Length Polymorphism) molecular markers. Results reveled wide genetic diversity [Shannon Index (I) = 0.37] in both species. In addition, populations showed genetic differentiation (p<0.05) in both evaluated species. However, such differences among populations explained less than 10% of the total variation. The southern population presented a greater differentiation compared to the others, which could have been generated by the canyons in this region, identified as a barrier to gene flow. The 39% of the analyzed trees of both species presented a genetic introgression of the other species, which means they come from hybrid ancestors. Given the genetic differences among populations, reforestation programs with P. arizonica and P. durangensis should use local materials. Furthermore, the hybridization potential of these species should be considered when selecting seed stands or plus trees. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-2170 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2021 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-21702022-11-29T22:26:39Z Diversity, genetic structure, and hybridization in Pinus arizonica and P. durangensis populations Diversidad, estructura genética e hibridación en poblaciones de Pinus arizonica y P. durangensis Morales-Nieto, Carlos Raúl Siqueiros-Candia, Minerva Álvarez-Holguín, Alan Gil-Vega, Katia del Carmen Corrales-Lerma, Raúl Martínez-Salvador, Martín AFLP flujo genético pinos software STRUCTURE AFLP gene flow pine trees The evaluation of diversity, genetic structure, and the identification of introgressive hybridization may contribute to designing strategies to preserve the genetic richness of forest species. Likewise, the genetic richness contributes significantly to the adaptation of these species to adverse factors or new environmental conditions, such as climate change. Therefore, this study assessed the diversity, genetic structure, and hybridization capacity in Pinus arizonica y P. durangensis population located in Chihuahua, Mexico. Trees from three populations were analyzed through AFLP (Amplified Fragment Length Polymorphism) molecular markers. Results reveled wide genetic diversity [Shannon Index (I) = 0.37] in both species. In addition, populations showed genetic differentiation (p<0.05) in both evaluated species. However, such differences among populations explained less than 10% of the total variation. The southern population presented a greater differentiation compared to the others, which could have been generated by the canyons in this region, identified as a barrier to gene flow. The 39% of the analyzed trees of both species presented a genetic introgression of the other species, which means they come from hybrid ancestors. Given the genetic differences among populations, reforestation programs with P. arizonica and P. durangensis should use local materials. Furthermore, the hybridization potential of these species should be considered when selecting seed stands or plus trees. La evaluación de la diversidad, estructura genética y capacidad de hibridación en especies forestales contribuye en el diseño de estrategias para preservar su riqueza genética. A su vez, la riqueza genética contribuye en la adaptación de estas especies ante factores adversos o nuevos ambientes, como el cambio climático. Por esta razón, se evalúo la diversidad, estructura genética y capacidad de hibridación en poblaciones de Pinus arizonica y P. durangensis de la sierra de Chihuahua. Se analizaron árboles de tres poblaciones de cada especie con el uso de AFLPs (polimorfismo en la longitud de los fragmentos amplificados). Los resultados revelaron que existe amplia diversidad genética dentro de ambas especies [índice de información de Shannon (I) = 0.37]. Las poblaciones evaluadas presentaron diferenciación genética significativa (p<0.05) en ambas especies. No obstante, estas diferencias genéticas entre poblaciones explicaron menos de 10% de la variación total. La población Sur presentó mayor diferenciación, la cual podría haber sido generada por las barrancas en esa región del estado, identificadas como una barrera en el flujo genético. El 39% de los árboles analizados de P. arizonica y P. durangensis presentaron introgresión genética de la otra especie, es decir que provienen de ancestros híbridos. Por lo anterior, sería recomendable que los programas de reforestación con P. arizonica y P. durangensis se realicen con materiales locales. Además, es importante considerar la capacidad de hibridación entre estas especies al seleccionar áreas o arboles semilleros. Instituto de Ecología, A.C. 2021-12-13 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares text/xml application/pdf https://myb.ojs.inecol.mx/index.php/myb/article/view/2170 10.21829/myb.2021.2722170 Madera y Bosques; Vol. 27 No. 2 (2021): Summer 2021; e2722170 Madera y Bosques; Vol. 27 Núm. 2 (2021): Verano 2021; e2722170 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/2170/2340 https://myb.ojs.inecol.mx/index.php/myb/article/view/2170/2275 10.21829/myb.2019.251604 10.21829/myb.2018.243444 Derechos de autor 2021 Madera y Bosques http://creativecommons.org/licenses/by-nc-sa/4.0 |
| spellingShingle | Morales-Nieto, Carlos Raúl Siqueiros-Candia, Minerva Álvarez-Holguín, Alan Gil-Vega, Katia del Carmen Corrales-Lerma, Raúl Martínez-Salvador, Martín Diversity, genetic structure, and hybridization in Pinus arizonica and P. durangensis populations |
| title | Diversity, genetic structure, and hybridization in Pinus arizonica and P. durangensis populations |
| title_full | Diversity, genetic structure, and hybridization in Pinus arizonica and P. durangensis populations |
| title_fullStr | Diversity, genetic structure, and hybridization in Pinus arizonica and P. durangensis populations |
| title_full_unstemmed | Diversity, genetic structure, and hybridization in Pinus arizonica and P. durangensis populations |
| title_short | Diversity, genetic structure, and hybridization in Pinus arizonica and P. durangensis populations |
| title_sort | diversity, genetic structure, and hybridization in pinus arizonica and p. durangensis populations |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/2170 |
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