Among-population variation and plasticity to drought of Atlantic, Mediterranean, and interprovenance hybrid populations of Maritime pine

Maritime pine grows naturally under a wide range of climatic conditions, from strongly Atlantic to strongly Mediterranean. Aiming to improve our understanding of the genetic structure and inheritance of drought resistance strategies in the species, we conducted an environmentally controlled experime...

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Detalles Bibliográficos
Autores: Mata Pombo, Raúl de la, Merlo, E., Zas Arregui, Rafael
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/97241
Acceso en línea:http://hdl.handle.net/10261/97241
Access Level:acceso abierto
Palabra clave:Phenotypic plasticity
Drought stress
Pinus pinaster
Interprovenance hybrids
Biomass allocation
Optimal partitioning theory
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spelling Among-population variation and plasticity to drought of Atlantic, Mediterranean, and interprovenance hybrid populations of Maritime pineMata Pombo, Raúl de laMerlo, E.Zas Arregui, RafaelPhenotypic plasticityDrought stressPinus pinasterInterprovenance hybridsBiomass allocationOptimal partitioning theoryMaritime pine grows naturally under a wide range of climatic conditions, from strongly Atlantic to strongly Mediterranean. Aiming to improve our understanding of the genetic structure and inheritance of drought resistance strategies in the species, we conducted an environmentally controlled experiment to assess the genetic variation and plasticity to drought of Atlantic and Mediterranean populations, and the interprovenance hybrids between them. Hybridization could also help to provide new genetic material for use in transitional areas between the two regions, for which reproductive materials of good quality are generally lacking. Plastic responses to water stress appeared to be highly conserved among populations, with a common conservative isohydric strategy based on promoting growth when water was abundant, and stopping it when water became limiting. We found, however, a strong intraspecific variation in biomass allocation patterns. The Atlantic populations showed a risky growth-based strategy with a larger amount of juvenile needles, whereas Mediterranean populations showed a more conservative strategy, minimizing aerial growth and increasing the proportion of adult needles that are more resistant to water loss. Hybrid populations performed more similarly to the Mediterranean parent, suggesting a dominance of the Mediterranean-like characteristics. Some of the tested hybrid populations, however, combined high growth with traits of drought adaptation, and thus represent potentially interesting materials for use in transitional regions between the two climate zones.The study was partially supported by the research grants RTA07-100, PSE310000 and AGL2010-18724-COMPROPIN.Springer Nature20142015201420152014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/97241reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1007/s11295-014-0753-xinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/972412026-05-22T06:33:51Z
dc.title.none.fl_str_mv Among-population variation and plasticity to drought of Atlantic, Mediterranean, and interprovenance hybrid populations of Maritime pine
title Among-population variation and plasticity to drought of Atlantic, Mediterranean, and interprovenance hybrid populations of Maritime pine
spellingShingle Among-population variation and plasticity to drought of Atlantic, Mediterranean, and interprovenance hybrid populations of Maritime pine
Mata Pombo, Raúl de la
Phenotypic plasticity
Drought stress
Pinus pinaster
Interprovenance hybrids
Biomass allocation
Optimal partitioning theory
title_short Among-population variation and plasticity to drought of Atlantic, Mediterranean, and interprovenance hybrid populations of Maritime pine
title_full Among-population variation and plasticity to drought of Atlantic, Mediterranean, and interprovenance hybrid populations of Maritime pine
title_fullStr Among-population variation and plasticity to drought of Atlantic, Mediterranean, and interprovenance hybrid populations of Maritime pine
title_full_unstemmed Among-population variation and plasticity to drought of Atlantic, Mediterranean, and interprovenance hybrid populations of Maritime pine
title_sort Among-population variation and plasticity to drought of Atlantic, Mediterranean, and interprovenance hybrid populations of Maritime pine
dc.creator.none.fl_str_mv Mata Pombo, Raúl de la
Merlo, E.
Zas Arregui, Rafael
author Mata Pombo, Raúl de la
author_facet Mata Pombo, Raúl de la
Merlo, E.
Zas Arregui, Rafael
author_role author
author2 Merlo, E.
Zas Arregui, Rafael
author2_role author
author
dc.subject.none.fl_str_mv Phenotypic plasticity
Drought stress
Pinus pinaster
Interprovenance hybrids
Biomass allocation
Optimal partitioning theory
topic Phenotypic plasticity
Drought stress
Pinus pinaster
Interprovenance hybrids
Biomass allocation
Optimal partitioning theory
description Maritime pine grows naturally under a wide range of climatic conditions, from strongly Atlantic to strongly Mediterranean. Aiming to improve our understanding of the genetic structure and inheritance of drought resistance strategies in the species, we conducted an environmentally controlled experiment to assess the genetic variation and plasticity to drought of Atlantic and Mediterranean populations, and the interprovenance hybrids between them. Hybridization could also help to provide new genetic material for use in transitional areas between the two regions, for which reproductive materials of good quality are generally lacking. Plastic responses to water stress appeared to be highly conserved among populations, with a common conservative isohydric strategy based on promoting growth when water was abundant, and stopping it when water became limiting. We found, however, a strong intraspecific variation in biomass allocation patterns. The Atlantic populations showed a risky growth-based strategy with a larger amount of juvenile needles, whereas Mediterranean populations showed a more conservative strategy, minimizing aerial growth and increasing the proportion of adult needles that are more resistant to water loss. Hybrid populations performed more similarly to the Mediterranean parent, suggesting a dominance of the Mediterranean-like characteristics. Some of the tested hybrid populations, however, combined high growth with traits of drought adaptation, and thus represent potentially interesting materials for use in transitional regions between the two climate zones.
publishDate 2014
dc.date.none.fl_str_mv 2014
2014
2014
2015
2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/97241
url http://hdl.handle.net/10261/97241
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1007/s11295-014-0753-x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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