Evidence of genetic determination in the growth habit of Nothofagus pumilio (Poepp. & Endl.) Krasser at the extremes of an elevation gradient
In temperate mountainous regions, altitudinal clines in tree size and growth habit develop from a gradual adjustment of multiple traits to tolerate harshening conditions with altitude. We perform a common garden trial with seedlings from two stands of Nothofagus pumilio: low altitude, tall forest (1...
| Autores principales: | , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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Taylor & Francis
2020
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/7574 https://www.tandfonline.com/doi/abs/10.1080/02827581.2020.1789208 https://doi.org/10.1080/02827581.2020.1789208 |
| _version_ | 1855484035835363328 |
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| author | Soliani, Carolina Aparicio, Alejandro Gabriel |
| author_browse | Aparicio, Alejandro Gabriel Soliani, Carolina |
| author_facet | Soliani, Carolina Aparicio, Alejandro Gabriel |
| author_sort | Soliani, Carolina |
| collection | INTA Digital |
| description | In temperate mountainous regions, altitudinal clines in tree size and growth habit develop from a gradual adjustment of multiple traits to tolerate harshening conditions with altitude. We perform a common garden trial with seedlings from two stands of Nothofagus pumilio: low altitude, tall forest (1200 m a.s.l) vs. high altitude, shrubby forest (1560 m a.s.l), to determine whether the contrasting
growth habits observed in the forest have a genetic basis, which expresses in the juvenile tree life stage. Growth habit syndrome was assessed including size, phenology, growth rhythm and architecture traits. Shrubby archetypes, i.e. small densely-branched plants with codominant axes, were more frequent between plants from higher altitude. Instead, large single-stemmed, slender morphotypes prevailed between plants from the lower stand. These contrasting frequencies between both extremes of the elevation gradient could be explained by differences in cumulative effects in multiple underlying traits, giving clues that there could be genetic determination in the growth habit of N. pumilio. Based on our findings, we recommend that the sampling strategy of future study systems of N. pumilio genetic variation, should encompass multiple elevation gradients along its distribution. Meanwhile, altitudinal zoning seems a precautionary advice for ongoing restoration plans. |
| format | Artículo |
| id | INTA7574 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Taylor & Francis |
| publisherStr | Taylor & Francis |
| record_format | dspace |
| spelling | INTA75742021-03-17T17:38:03Z Evidence of genetic determination in the growth habit of Nothofagus pumilio (Poepp. & Endl.) Krasser at the extremes of an elevation gradient Soliani, Carolina Aparicio, Alejandro Gabriel Nothofagus Nothofagus Pumilio Adaptación Bosques Fenología Adaptation Forests Phenology Gradientes Altitudinales In temperate mountainous regions, altitudinal clines in tree size and growth habit develop from a gradual adjustment of multiple traits to tolerate harshening conditions with altitude. We perform a common garden trial with seedlings from two stands of Nothofagus pumilio: low altitude, tall forest (1200 m a.s.l) vs. high altitude, shrubby forest (1560 m a.s.l), to determine whether the contrasting growth habits observed in the forest have a genetic basis, which expresses in the juvenile tree life stage. Growth habit syndrome was assessed including size, phenology, growth rhythm and architecture traits. Shrubby archetypes, i.e. small densely-branched plants with codominant axes, were more frequent between plants from higher altitude. Instead, large single-stemmed, slender morphotypes prevailed between plants from the lower stand. These contrasting frequencies between both extremes of the elevation gradient could be explained by differences in cumulative effects in multiple underlying traits, giving clues that there could be genetic determination in the growth habit of N. pumilio. Based on our findings, we recommend that the sampling strategy of future study systems of N. pumilio genetic variation, should encompass multiple elevation gradients along its distribution. Meanwhile, altitudinal zoning seems a precautionary advice for ongoing restoration plans. Estación Experimental Agropecuaria Bariloche Fil: Soliani, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Grupo de Genética Ecológica y Mejoramiento Forestal. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina Fil: Aparicio, Alejandro Gabriel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Grupo de Genética Ecológica y Mejoramiento Forestal. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Instituto de Investigaciones Forestales y Agropecuarias Bariloche; Argentina 2020-07-17T18:58:12Z 2020-07-17T18:58:12Z 2020 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/7574 https://www.tandfonline.com/doi/abs/10.1080/02827581.2020.1789208 0282-7581 https://doi.org/10.1080/02827581.2020.1789208 eng info:eu-repograntAgreement/INTA/PNFOR-1104063/AR./Mejoramiento genético de especies forestales nativas de alto valor. info:eu-repo/semantics/reference/hdl/20.500.12123/8914 info:eu-repo/semantics/restrictedAccess application/pdf Taylor & Francis Scandinavian Journal of Forest Research (Julio 2020) |
| spellingShingle | Nothofagus Nothofagus Pumilio Adaptación Bosques Fenología Adaptation Forests Phenology Gradientes Altitudinales Soliani, Carolina Aparicio, Alejandro Gabriel Evidence of genetic determination in the growth habit of Nothofagus pumilio (Poepp. & Endl.) Krasser at the extremes of an elevation gradient |
| title | Evidence of genetic determination in the growth habit of Nothofagus pumilio (Poepp. & Endl.) Krasser at the extremes of an elevation gradient |
| title_full | Evidence of genetic determination in the growth habit of Nothofagus pumilio (Poepp. & Endl.) Krasser at the extremes of an elevation gradient |
| title_fullStr | Evidence of genetic determination in the growth habit of Nothofagus pumilio (Poepp. & Endl.) Krasser at the extremes of an elevation gradient |
| title_full_unstemmed | Evidence of genetic determination in the growth habit of Nothofagus pumilio (Poepp. & Endl.) Krasser at the extremes of an elevation gradient |
| title_short | Evidence of genetic determination in the growth habit of Nothofagus pumilio (Poepp. & Endl.) Krasser at the extremes of an elevation gradient |
| title_sort | evidence of genetic determination in the growth habit of nothofagus pumilio poepp endl krasser at the extremes of an elevation gradient |
| topic | Nothofagus Nothofagus Pumilio Adaptación Bosques Fenología Adaptation Forests Phenology Gradientes Altitudinales |
| url | http://hdl.handle.net/20.500.12123/7574 https://www.tandfonline.com/doi/abs/10.1080/02827581.2020.1789208 https://doi.org/10.1080/02827581.2020.1789208 |
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