Restricted Dispersal in the Late Successional Forest Tree Species Nothofagus Pumilio: Consequences Under Global Change
Plants rely on gamete dispersal to ensure the inheritance of their genes. Gene flow, mediated by pollen and seed dispersal, also fosters species' cohesion across space, facilitates population migration, and influences local adaptation. Nothofagus pumilio is an ecologically important wind-dispersed t...
| Main Authors: | , , , , , , , , |
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Wiley
2025
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| Online Access: | http://hdl.handle.net/20.500.12123/22444 https://onlinelibrary.wiley.com/doi/10.1002/ece3.71002 https://doi.org/10.1002/ece3.71002 |
| _version_ | 1855038576420454400 |
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| author | Soliani, Carolina Sekely, Jill Zamora-Ballesteros, Cristina Heer, Katrin Lepais, Olivier Mondino, Victor Alejandro Opgenoorth, Lars Pastorino, Mario Juan Marchelli, Paula |
| author_browse | Heer, Katrin Lepais, Olivier Marchelli, Paula Mondino, Victor Alejandro Opgenoorth, Lars Pastorino, Mario Juan Sekely, Jill Soliani, Carolina Zamora-Ballesteros, Cristina |
| author_facet | Soliani, Carolina Sekely, Jill Zamora-Ballesteros, Cristina Heer, Katrin Lepais, Olivier Mondino, Victor Alejandro Opgenoorth, Lars Pastorino, Mario Juan Marchelli, Paula |
| author_sort | Soliani, Carolina |
| collection | INTA Digital |
| description | Plants rely on gamete dispersal to ensure the inheritance of their genes. Gene flow, mediated by pollen and seed dispersal, also fosters species' cohesion across space, facilitates population migration, and influences local adaptation. Nothofagus pumilio is an ecologically important wind-dispersed tree species of the Patagonian Andes. We aim to uncover its current and historic effective dispersal distances and characterize its fine-scale genetic structure. In a naturally monospecific stand of N. pumilio, we sampled 200 adults and 400 seedlings. Using a modern sequencing approach (SSRseq), we developed 15 nuclear microsatellite markers for genotyping and used them to characterize genetic diversity and fine-scale genetic structure. We estimated dispersal distances using direct methods (i.e., neighborhood models) and indirect (i.e., inferred from fine-scale spatial genetic structure). Short average seed and pollen dispersal distances were estimated (δs = 13.33 m and δp = 24.08 m respectively), but the fat-tailed distribution of dispersal kernels also suggests some immigration and long-distance dispersal events. Indirect estimates (σ2g = 21.62) are closely aligned with direct estimates. The majority of seedlings (84%) could be assigned to at least one sampled adult within the plot, and these seedlings were produced by just 43% of sampled adults. Reproductive success was significantly associated with seed donors' diameters at breast height. N. pumilio's distribution expansion capacity may be limited by short seed dispersal distances, especially in the context of global change. Natural and assisted migration actions should be prioritized to mitigate future change effects. |
| format | info:ar-repo/semantics/artículo |
| id | INTA22444 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | INTA224442025-05-26T14:42:33Z Restricted Dispersal in the Late Successional Forest Tree Species Nothofagus Pumilio: Consequences Under Global Change Soliani, Carolina Sekely, Jill Zamora-Ballesteros, Cristina Heer, Katrin Lepais, Olivier Mondino, Victor Alejandro Opgenoorth, Lars Pastorino, Mario Juan Marchelli, Paula Nothofagus Nothofagus pumilio Gene Flow Seed Dispersal Pollen Genetics Flujo Genético Diseminación de Semillas Polen Genética Plants rely on gamete dispersal to ensure the inheritance of their genes. Gene flow, mediated by pollen and seed dispersal, also fosters species' cohesion across space, facilitates population migration, and influences local adaptation. Nothofagus pumilio is an ecologically important wind-dispersed tree species of the Patagonian Andes. We aim to uncover its current and historic effective dispersal distances and characterize its fine-scale genetic structure. In a naturally monospecific stand of N. pumilio, we sampled 200 adults and 400 seedlings. Using a modern sequencing approach (SSRseq), we developed 15 nuclear microsatellite markers for genotyping and used them to characterize genetic diversity and fine-scale genetic structure. We estimated dispersal distances using direct methods (i.e., neighborhood models) and indirect (i.e., inferred from fine-scale spatial genetic structure). Short average seed and pollen dispersal distances were estimated (δs = 13.33 m and δp = 24.08 m respectively), but the fat-tailed distribution of dispersal kernels also suggests some immigration and long-distance dispersal events. Indirect estimates (σ2g = 21.62) are closely aligned with direct estimates. The majority of seedlings (84%) could be assigned to at least one sampled adult within the plot, and these seedlings were produced by just 43% of sampled adults. Reproductive success was significantly associated with seed donors' diameters at breast height. N. pumilio's distribution expansion capacity may be limited by short seed dispersal distances, especially in the context of global change. Natural and assisted migration actions should be prioritized to mitigate future change effects. Para garantizar la herencia de sus genes, las plantas dependen de la dispersión efectiva de sus gametas. El flujo genético, mediado por la dispersión del polen y las semillas, promueve la cohesión en el espacio a nivel intra-específico, facilita la migración de las poblaciones e incide en la adaptación local. Nothofagus pumilio es una especie arbórea de gran importancia ecológica de los bosques Andino –Patagónicos que se dispersa por el viento. En este trabajo, nuestro objetivo es conocer sus distancias de dispersión efectivas, actuales e históricas, y caracterizar su estructura genética a pequeña escala. En un rodal monoespecífico de N. pumilio, tomamos muestras de 200 adultos y 400 plántulas. Utilizando una moderna metodología de secuenciación (SSRseq), desarrollamos 15 marcadores microsatélites nucleares para el genotipado de los individuos y los utilizamos para caracterizar la diversidad y la estructura genética a pequeña escala. Estimamos las distancias de dispersión utilizando métodos directos (por medio de modelos de vecindad) e indirectos (inferidos a partir de la estructura genética espacial a pequeña escala). Estimamos las distancias medias de dispersión de las semillas y el polen (δs = 13.33 m y δp = 24.08 m respectivamente), que indicaron una dispersión efectiva a corta distancia. La distribución de los núcleos de dispersión sugiere además la ocurrencia de algunos eventos de inmigración y dispersión a larga distancia, o bien desde las inmediaciones de la parcela. Las estimaciones indirectas (σ2g = 21.62) coinciden con las directas. Logramos asignar al menos un progenitor a la mayoría de las plántulas (84%), que fueron producidas por sólo el 43% de los adultos muestreados. También se midió la altura y el diámetro a la altura del pecho (DAP) de los adultos, y el éxito reproductivo se asoció significativamente con el DAP de los árboles que actuaron como donantes de semillas (flores femeninas). Las cortas distancias de dispersión de las semillas sugieren que la capacidad de expansión de la distribución de N. pumilio puede ser limitada, especialmente en el contexto del cambio global. Proponemos que deberían priorizarse las acciones de migración natural y/o asistida para mitigar los futuros efectos del cambio climático. EEA Bariloche Fil: Soliani, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Soliani, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Sekely, Jill. Albert-Ludwigs Universität Freiburg. Eva Mayr Stihl Professorship for Forest Genetics; Alemania Fil: Sekely, Jill. Philipps-Universität Marburg. Plant Ecology and Geobotany; Alemania Fil: Zamora-Ballesteros, Cristina. Albert-Ludwigs Universität Freiburg. Eva Mayr Stihl Professorship for Forest Genetics; Alemania Fil: Heer, Katrin. Albert-Ludwigs Universität Freiburg. Eva Mayr Stihl Professorship for Forest Genetics; Alemania Fil: Lepais, Olivier. Université Bordeaux, INRAE, BIOGECO; Francia Fil: Mondino, Victor. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agroforestal Esquel (EEAf Esquel); Argentina Fil: Opgenoorth, Lars. Philipps-Universität Marburg. Plant Ecology and Geobotany; Alemania Fil: Pastorino, Mario Juan. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Pastorino, Mario Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Marchelli, Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Marchelli, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina 2025-05-26T14:38:07Z 2025-05-26T14:38:07Z 2025-05 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/22444 https://onlinelibrary.wiley.com/doi/10.1002/ece3.71002 2045-7758 2045-7758 https://doi.org/10.1002/ece3.71002 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Wiley Ecology and Evolution 15 (5) : e71002. (May 2025) |
| spellingShingle | Nothofagus Nothofagus pumilio Gene Flow Seed Dispersal Pollen Genetics Flujo Genético Diseminación de Semillas Polen Genética Soliani, Carolina Sekely, Jill Zamora-Ballesteros, Cristina Heer, Katrin Lepais, Olivier Mondino, Victor Alejandro Opgenoorth, Lars Pastorino, Mario Juan Marchelli, Paula Restricted Dispersal in the Late Successional Forest Tree Species Nothofagus Pumilio: Consequences Under Global Change |
| title | Restricted Dispersal in the Late Successional Forest Tree Species Nothofagus Pumilio: Consequences Under Global Change |
| title_full | Restricted Dispersal in the Late Successional Forest Tree Species Nothofagus Pumilio: Consequences Under Global Change |
| title_fullStr | Restricted Dispersal in the Late Successional Forest Tree Species Nothofagus Pumilio: Consequences Under Global Change |
| title_full_unstemmed | Restricted Dispersal in the Late Successional Forest Tree Species Nothofagus Pumilio: Consequences Under Global Change |
| title_short | Restricted Dispersal in the Late Successional Forest Tree Species Nothofagus Pumilio: Consequences Under Global Change |
| title_sort | restricted dispersal in the late successional forest tree species nothofagus pumilio consequences under global change |
| topic | Nothofagus Nothofagus pumilio Gene Flow Seed Dispersal Pollen Genetics Flujo Genético Diseminación de Semillas Polen Genética |
| url | http://hdl.handle.net/20.500.12123/22444 https://onlinelibrary.wiley.com/doi/10.1002/ece3.71002 https://doi.org/10.1002/ece3.71002 |
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