Phylogeography of two hybridizing southern beeches (Nothofagus spp.) with different adaptive abilities
In phylogenetically related plant species, hybridization can influence their current genetic structure. Long-lasting hybridization may be related to persistence in shared glacial refugia, where the differential abilities of each species to survive could have provided adaptations to changing environm...
| Autores principales: | , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2023
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12123/15031 https://link.springer.com/article/10.1007/s11295-011-0452-9 https://doi.org/10.1007/s11295-011-0452-9 |
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| author | Soliani, Carolina Gallo, Leonardo Ariel Marchelli, Paula |
| author_browse | Gallo, Leonardo Ariel Marchelli, Paula Soliani, Carolina |
| author_facet | Soliani, Carolina Gallo, Leonardo Ariel Marchelli, Paula |
| author_sort | Soliani, Carolina |
| collection | INTA Digital |
| description | In phylogenetically related plant species, hybridization can influence their current genetic structure. Long-lasting hybridization may be related to persistence in shared glacial refugia, where the differential abilities of each species to survive could have provided adaptations to changing environmental conditions. In temperate South American forests at the Patagonia region, the pattern of Quaternary glaciations offered several opportunities for refuge. At mid-latitudes (42° to 44° S), particular topographic characteristics determined different glaciation patterns, defining the existence of a transitional zone. We studied two widespread Nothofagus species (Nothofagus pumilio, Nothofagus antarctica) characterized by contrasting plasticity. We screened 40 coupled populations with three cpDNA markers and found 14 different haplotypes. Both species presented significant phylogeographic structure (N ST ≥ G ST, p > 0.001), with two geographically segregated lineages (north–south). A latitudinal cline in the distribution of genetic diversity was determined, with most variable populations in the north (35°–41° S). Population diversity diminished to southern latitudes, but a particular situation occurs between 42°S and 44°S. The transition zone, a putative refuge area, presented unique haplotypes. The more plastic species, N. antarctica, probably persisted in more refuge areas, which could be reflected in its higher levels of diversity. In these species, sympatric distribution explains introgression (IG > IG e), but the differential levels of haplotype sharing between N. pumilio and N. antarctica at population level are relevant to the understanding of phylogeographic patterns. Hybridization may have facilitated recruitment in the onset of postglacial colonization by middle to long-distance pollen dispersal. In the current scenario of climate change, the presence of hybrids with different plastic responses is of remarkable importance. |
| format | info:ar-repo/semantics/artículo |
| id | INTA15031 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA150312023-08-28T16:58:58Z Phylogeography of two hybridizing southern beeches (Nothofagus spp.) with different adaptive abilities Soliani, Carolina Gallo, Leonardo Ariel Marchelli, Paula Nothofagus Nothofagus Pumilio Estructura Genética Introgresión ADN Cloroplástico Hibridación Factores Ambientales Genetic Structures Introgression Chloroplast DNA Hybridization Environmental Factors Lenga Ñire Región Patagónica In phylogenetically related plant species, hybridization can influence their current genetic structure. Long-lasting hybridization may be related to persistence in shared glacial refugia, where the differential abilities of each species to survive could have provided adaptations to changing environmental conditions. In temperate South American forests at the Patagonia region, the pattern of Quaternary glaciations offered several opportunities for refuge. At mid-latitudes (42° to 44° S), particular topographic characteristics determined different glaciation patterns, defining the existence of a transitional zone. We studied two widespread Nothofagus species (Nothofagus pumilio, Nothofagus antarctica) characterized by contrasting plasticity. We screened 40 coupled populations with three cpDNA markers and found 14 different haplotypes. Both species presented significant phylogeographic structure (N ST ≥ G ST, p > 0.001), with two geographically segregated lineages (north–south). A latitudinal cline in the distribution of genetic diversity was determined, with most variable populations in the north (35°–41° S). Population diversity diminished to southern latitudes, but a particular situation occurs between 42°S and 44°S. The transition zone, a putative refuge area, presented unique haplotypes. The more plastic species, N. antarctica, probably persisted in more refuge areas, which could be reflected in its higher levels of diversity. In these species, sympatric distribution explains introgression (IG > IG e), but the differential levels of haplotype sharing between N. pumilio and N. antarctica at population level are relevant to the understanding of phylogeographic patterns. Hybridization may have facilitated recruitment in the onset of postglacial colonization by middle to long-distance pollen dispersal. In the current scenario of climate change, the presence of hybrids with different plastic responses is of remarkable importance. EEA Bariloche Fil: Soliani, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Unidad de Genética Ecológica y Mejoramiento Forestal; Argentina Fil: Soliani, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Gallo, Leonardo Ariel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Unidad de Genética Ecológica y Mejoramiento Forestal; Argentina Fil: Marchelli, Paula. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Unidad de Genética Ecológica y Mejoramiento Forestal; Argentina Fil: Marchelli, Paula. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina 2023-08-28T16:53:25Z 2023-08-28T16:53:25Z 2011-12-17 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/15031 https://link.springer.com/article/10.1007/s11295-011-0452-9 1614-2942 1614-2950 https://doi.org/10.1007/s11295-011-0452-9 eng info:eu-repo/semantics/restrictedAccess 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 Springer Tree Genetics & Genomes volume 8 : 659–673. (2012) |
| spellingShingle | Nothofagus Nothofagus Pumilio Estructura Genética Introgresión ADN Cloroplástico Hibridación Factores Ambientales Genetic Structures Introgression Chloroplast DNA Hybridization Environmental Factors Lenga Ñire Región Patagónica Soliani, Carolina Gallo, Leonardo Ariel Marchelli, Paula Phylogeography of two hybridizing southern beeches (Nothofagus spp.) with different adaptive abilities |
| title | Phylogeography of two hybridizing southern beeches (Nothofagus spp.) with different adaptive abilities |
| title_full | Phylogeography of two hybridizing southern beeches (Nothofagus spp.) with different adaptive abilities |
| title_fullStr | Phylogeography of two hybridizing southern beeches (Nothofagus spp.) with different adaptive abilities |
| title_full_unstemmed | Phylogeography of two hybridizing southern beeches (Nothofagus spp.) with different adaptive abilities |
| title_short | Phylogeography of two hybridizing southern beeches (Nothofagus spp.) with different adaptive abilities |
| title_sort | phylogeography of two hybridizing southern beeches nothofagus spp with different adaptive abilities |
| topic | Nothofagus Nothofagus Pumilio Estructura Genética Introgresión ADN Cloroplástico Hibridación Factores Ambientales Genetic Structures Introgression Chloroplast DNA Hybridization Environmental Factors Lenga Ñire Región Patagónica |
| url | http://hdl.handle.net/20.500.12123/15031 https://link.springer.com/article/10.1007/s11295-011-0452-9 https://doi.org/10.1007/s11295-011-0452-9 |
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