Looking at the forest from below: the role of seedling root traits in the adaptation to climate change of two Nothofagus species in Argentina

Autores
Duboscq Carra, Virginia Gisela; Letourneau, Federico Jorge; Pastorino, Mario Juan
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Global climate change (CC) is an evolutionary challenge for natural tree populations. Scientific experts forecast an increase in temperature and a decrease in precipitation in the Argentine Patagonian Cordillera. Knowledge of the variation of adaptive traits at the seedling stage is crucial to prediction the adaptability of forest tree species. We aim to analyze genetic variation in root and shoot quantitative traits among and within natural populations of two key North Patagonian forest species, in order to evaluate their ability to deal with CC through adaptation. We established two common garden nursery trials: (1) 81 open pollinated families of Nothofagus obliqua from eight natural populations, and (2) 74 families of Nothofagus alpina from seven populations. At the end of the first growing season we measured shoot height, diameter, root length and root and stem dry biomass; we also estimated foliage biomass. In addition the root to stem ratio, specific root length and the root to shoot ratio were calculated. For both species intra-population variation was generally low, and average differentiation was moderate, with high levels of differentiation in some traits related to drought stress, indicating low adaptation capacity but also adaptation to current stressful conditions, which means it may be possible for some populations to survive CC without changing their genetic structures. Further studies are needed, including phenotypic plasticity assays, to complete the picture.
Estación Experimental Agropecuaria Bariloche
Fil: Duboscq-Carra, Virginia Gisela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área Forestal; Argentina
Fil: Letourneau, Federico Jorge. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área Sistemas Forestales. Campo Experimental Forestal San Martín; Argentina
Fil: Pastorino, Mario Juan. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área Sistemas Forestales; Argentina
Fuente
New Forests : 1-12 (May 2018)
Materia
Nothofagus
Plántulas
Seedlings
Climate Change
Cambio Climático
Genética Forestal
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/2566
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spelling Looking at the forest from below: the role of seedling root traits in the adaptation to climate change of two Nothofagus species in ArgentinaDuboscq Carra, Virginia GiselaLetourneau, Federico JorgePastorino, Mario JuanNothofagusPlántulasSeedlingsClimate ChangeCambio ClimáticoGenética ForestalGlobal climate change (CC) is an evolutionary challenge for natural tree populations. Scientific experts forecast an increase in temperature and a decrease in precipitation in the Argentine Patagonian Cordillera. Knowledge of the variation of adaptive traits at the seedling stage is crucial to prediction the adaptability of forest tree species. We aim to analyze genetic variation in root and shoot quantitative traits among and within natural populations of two key North Patagonian forest species, in order to evaluate their ability to deal with CC through adaptation. We established two common garden nursery trials: (1) 81 open pollinated families of Nothofagus obliqua from eight natural populations, and (2) 74 families of Nothofagus alpina from seven populations. At the end of the first growing season we measured shoot height, diameter, root length and root and stem dry biomass; we also estimated foliage biomass. In addition the root to stem ratio, specific root length and the root to shoot ratio were calculated. For both species intra-population variation was generally low, and average differentiation was moderate, with high levels of differentiation in some traits related to drought stress, indicating low adaptation capacity but also adaptation to current stressful conditions, which means it may be possible for some populations to survive CC without changing their genetic structures. Further studies are needed, including phenotypic plasticity assays, to complete the picture.Estación Experimental Agropecuaria BarilocheFil: Duboscq-Carra, Virginia Gisela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área Forestal; ArgentinaFil: Letourneau, Federico Jorge. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área Sistemas Forestales. Campo Experimental Forestal San Martín; ArgentinaFil: Pastorino, Mario Juan. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área Sistemas Forestales; Argentina2018-06-07T14:00:37Z2018-06-07T14:00:37Z2018-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/2566https://link.springer.com/article/10.1007/s11056-018-9647-30169-42861573-5095New Forests : 1-12 (May 2018)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repograntAgreement/INTA/PNFOR/044321/AR./Domesticación de especies forestales nativas patagónicasArgentina (nation)info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-10-16T09:29:12Zoai:localhost:20.500.12123/2566instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-16 09:29:12.594INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Looking at the forest from below: the role of seedling root traits in the adaptation to climate change of two Nothofagus species in Argentina
title Looking at the forest from below: the role of seedling root traits in the adaptation to climate change of two Nothofagus species in Argentina
spellingShingle Looking at the forest from below: the role of seedling root traits in the adaptation to climate change of two Nothofagus species in Argentina
Duboscq Carra, Virginia Gisela
Nothofagus
Plántulas
Seedlings
Climate Change
Cambio Climático
Genética Forestal
title_short Looking at the forest from below: the role of seedling root traits in the adaptation to climate change of two Nothofagus species in Argentina
title_full Looking at the forest from below: the role of seedling root traits in the adaptation to climate change of two Nothofagus species in Argentina
title_fullStr Looking at the forest from below: the role of seedling root traits in the adaptation to climate change of two Nothofagus species in Argentina
title_full_unstemmed Looking at the forest from below: the role of seedling root traits in the adaptation to climate change of two Nothofagus species in Argentina
title_sort Looking at the forest from below: the role of seedling root traits in the adaptation to climate change of two Nothofagus species in Argentina
dc.creator.none.fl_str_mv Duboscq Carra, Virginia Gisela
Letourneau, Federico Jorge
Pastorino, Mario Juan
author Duboscq Carra, Virginia Gisela
author_facet Duboscq Carra, Virginia Gisela
Letourneau, Federico Jorge
Pastorino, Mario Juan
author_role author
author2 Letourneau, Federico Jorge
Pastorino, Mario Juan
author2_role author
author
dc.subject.none.fl_str_mv Nothofagus
Plántulas
Seedlings
Climate Change
Cambio Climático
Genética Forestal
topic Nothofagus
Plántulas
Seedlings
Climate Change
Cambio Climático
Genética Forestal
dc.description.none.fl_txt_mv Global climate change (CC) is an evolutionary challenge for natural tree populations. Scientific experts forecast an increase in temperature and a decrease in precipitation in the Argentine Patagonian Cordillera. Knowledge of the variation of adaptive traits at the seedling stage is crucial to prediction the adaptability of forest tree species. We aim to analyze genetic variation in root and shoot quantitative traits among and within natural populations of two key North Patagonian forest species, in order to evaluate their ability to deal with CC through adaptation. We established two common garden nursery trials: (1) 81 open pollinated families of Nothofagus obliqua from eight natural populations, and (2) 74 families of Nothofagus alpina from seven populations. At the end of the first growing season we measured shoot height, diameter, root length and root and stem dry biomass; we also estimated foliage biomass. In addition the root to stem ratio, specific root length and the root to shoot ratio were calculated. For both species intra-population variation was generally low, and average differentiation was moderate, with high levels of differentiation in some traits related to drought stress, indicating low adaptation capacity but also adaptation to current stressful conditions, which means it may be possible for some populations to survive CC without changing their genetic structures. Further studies are needed, including phenotypic plasticity assays, to complete the picture.
Estación Experimental Agropecuaria Bariloche
Fil: Duboscq-Carra, Virginia Gisela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área Forestal; Argentina
Fil: Letourneau, Federico Jorge. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área Sistemas Forestales. Campo Experimental Forestal San Martín; Argentina
Fil: Pastorino, Mario Juan. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Área Sistemas Forestales; Argentina
description Global climate change (CC) is an evolutionary challenge for natural tree populations. Scientific experts forecast an increase in temperature and a decrease in precipitation in the Argentine Patagonian Cordillera. Knowledge of the variation of adaptive traits at the seedling stage is crucial to prediction the adaptability of forest tree species. We aim to analyze genetic variation in root and shoot quantitative traits among and within natural populations of two key North Patagonian forest species, in order to evaluate their ability to deal with CC through adaptation. We established two common garden nursery trials: (1) 81 open pollinated families of Nothofagus obliqua from eight natural populations, and (2) 74 families of Nothofagus alpina from seven populations. At the end of the first growing season we measured shoot height, diameter, root length and root and stem dry biomass; we also estimated foliage biomass. In addition the root to stem ratio, specific root length and the root to shoot ratio were calculated. For both species intra-population variation was generally low, and average differentiation was moderate, with high levels of differentiation in some traits related to drought stress, indicating low adaptation capacity but also adaptation to current stressful conditions, which means it may be possible for some populations to survive CC without changing their genetic structures. Further studies are needed, including phenotypic plasticity assays, to complete the picture.
publishDate 2018
dc.date.none.fl_str_mv 2018-06-07T14:00:37Z
2018-06-07T14:00:37Z
2018-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/2566
https://link.springer.com/article/10.1007/s11056-018-9647-3
0169-4286
1573-5095
url http://hdl.handle.net/20.500.12123/2566
https://link.springer.com/article/10.1007/s11056-018-9647-3
identifier_str_mv 0169-4286
1573-5095
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repograntAgreement/INTA/PNFOR/044321/AR./Domesticación de especies forestales nativas patagónicas
dc.rights.none.fl_str_mv 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)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.coverage.none.fl_str_mv Argentina (nation)
dc.source.none.fl_str_mv New Forests : 1-12 (May 2018)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 12.712165

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