Drought stress tolerance of Prosopis chilensis and Prosopis flexuosa species and their hybrids

Autores
Lopez Lauenstein, Diego; Fernandez, María Elena; Verga, Anibal
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Natural hybridization commonly produces individuals with intermediate morphological and genetic characteristics, but their response to environmental stress is still uncertain, with some studies showing that transgressive performance would be common. Prosopis chilensis and Prosopis flexuosa are the most important tree species from Arid Chaco, South-America. Both species occupy different ecological niches in terms of water availability. Genetic and morphological studies have demonstrated the existence of interspecific hybrids in contact areas between these species. Hybrids are characterized by clear intermediate morphological characteristics, which have taxonomical value, and genetic structure compared to both parental species. We studied mechanisms implicated in drought stress tolerance in seedlings of P. chilensis, P. flexuosa and their interspecific hybrids trying to elucidate if hybrids have a morpho-physiological, growth and survival intermediate response to drought compared to differential parental responses or if they out-perform both parental species when subjected to drought. Our results suggest that hybridization does not result in individuals with intermediate mechanisms related to drought resistance, but with a unique trait combination leading to high growth when water availability is high (similar to the most vulnerable parental species) and high survival under drought stress (similar to the more resistant parental species). Certain uncoupling between symplastic and apoplastic resistence to drought was observed in hybrids, as well as decreased physiological-wood anatomical plasticity compared to parental species. The long-term consequences in terms of adaptive response to drought of this particular trait combination of hybrids remain still unknown.
Instituto de Fisiología y Recursos Genéticos Vegetales
Fil: Lopez Lauenstein, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Fernandez, Marí­a Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Grupo de Ecología Forestal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Verga, Anibal. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fuente
Trees 27 (1) : 285–296. (February 2013)
Materia
Prosopis Chilensis
Resistencia a la Sequía
Estrés de Sequia
Plasticidad Fenotípica
Hibridación
Drought Resistance
Drought Stress
Phenotypic Plasticity
Hybridization
Prosopis Flexuosa
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/3731
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spelling Drought stress tolerance of Prosopis chilensis and Prosopis flexuosa species and their hybridsLopez Lauenstein, DiegoFernandez, María ElenaVerga, AnibalProsopis ChilensisResistencia a la SequíaEstrés de SequiaPlasticidad FenotípicaHibridaciónDrought ResistanceDrought StressPhenotypic PlasticityHybridizationProsopis FlexuosaNatural hybridization commonly produces individuals with intermediate morphological and genetic characteristics, but their response to environmental stress is still uncertain, with some studies showing that transgressive performance would be common. Prosopis chilensis and Prosopis flexuosa are the most important tree species from Arid Chaco, South-America. Both species occupy different ecological niches in terms of water availability. Genetic and morphological studies have demonstrated the existence of interspecific hybrids in contact areas between these species. Hybrids are characterized by clear intermediate morphological characteristics, which have taxonomical value, and genetic structure compared to both parental species. We studied mechanisms implicated in drought stress tolerance in seedlings of P. chilensis, P. flexuosa and their interspecific hybrids trying to elucidate if hybrids have a morpho-physiological, growth and survival intermediate response to drought compared to differential parental responses or if they out-perform both parental species when subjected to drought. Our results suggest that hybridization does not result in individuals with intermediate mechanisms related to drought resistance, but with a unique trait combination leading to high growth when water availability is high (similar to the most vulnerable parental species) and high survival under drought stress (similar to the more resistant parental species). Certain uncoupling between symplastic and apoplastic resistence to drought was observed in hybrids, as well as decreased physiological-wood anatomical plasticity compared to parental species. The long-term consequences in terms of adaptive response to drought of this particular trait combination of hybrids remain still unknown.Instituto de Fisiología y Recursos Genéticos VegetalesFil: Lopez Lauenstein, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; ArgentinaFil: Fernandez, Marí­a Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Grupo de Ecología Forestal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Verga, Anibal. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; ArgentinaSpringer2018-10-29T15:00:33Z2018-10-29T15:00:33Z2013-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/3731https://link.springer.com/article/10.1007/s00468-012-0798-0#citeas0931-18901432-2285 (Online)https://doi.org/10.1007/s00468-012-0798-0Trees 27 (1) : 285–296. (February 2013)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-10-23T11:16:43Zoai:localhost:20.500.12123/3731instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-10-23 11:16:43.565INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Drought stress tolerance of Prosopis chilensis and Prosopis flexuosa species and their hybrids
title Drought stress tolerance of Prosopis chilensis and Prosopis flexuosa species and their hybrids
spellingShingle Drought stress tolerance of Prosopis chilensis and Prosopis flexuosa species and their hybrids
Lopez Lauenstein, Diego
Prosopis Chilensis
Resistencia a la Sequía
Estrés de Sequia
Plasticidad Fenotípica
Hibridación
Drought Resistance
Drought Stress
Phenotypic Plasticity
Hybridization
Prosopis Flexuosa
title_short Drought stress tolerance of Prosopis chilensis and Prosopis flexuosa species and their hybrids
title_full Drought stress tolerance of Prosopis chilensis and Prosopis flexuosa species and their hybrids
title_fullStr Drought stress tolerance of Prosopis chilensis and Prosopis flexuosa species and their hybrids
title_full_unstemmed Drought stress tolerance of Prosopis chilensis and Prosopis flexuosa species and their hybrids
title_sort Drought stress tolerance of Prosopis chilensis and Prosopis flexuosa species and their hybrids
dc.creator.none.fl_str_mv Lopez Lauenstein, Diego
Fernandez, María Elena
Verga, Anibal
author Lopez Lauenstein, Diego
author_facet Lopez Lauenstein, Diego
Fernandez, María Elena
Verga, Anibal
author_role author
author2 Fernandez, María Elena
Verga, Anibal
author2_role author
author
dc.subject.none.fl_str_mv Prosopis Chilensis
Resistencia a la Sequía
Estrés de Sequia
Plasticidad Fenotípica
Hibridación
Drought Resistance
Drought Stress
Phenotypic Plasticity
Hybridization
Prosopis Flexuosa
topic Prosopis Chilensis
Resistencia a la Sequía
Estrés de Sequia
Plasticidad Fenotípica
Hibridación
Drought Resistance
Drought Stress
Phenotypic Plasticity
Hybridization
Prosopis Flexuosa
dc.description.none.fl_txt_mv Natural hybridization commonly produces individuals with intermediate morphological and genetic characteristics, but their response to environmental stress is still uncertain, with some studies showing that transgressive performance would be common. Prosopis chilensis and Prosopis flexuosa are the most important tree species from Arid Chaco, South-America. Both species occupy different ecological niches in terms of water availability. Genetic and morphological studies have demonstrated the existence of interspecific hybrids in contact areas between these species. Hybrids are characterized by clear intermediate morphological characteristics, which have taxonomical value, and genetic structure compared to both parental species. We studied mechanisms implicated in drought stress tolerance in seedlings of P. chilensis, P. flexuosa and their interspecific hybrids trying to elucidate if hybrids have a morpho-physiological, growth and survival intermediate response to drought compared to differential parental responses or if they out-perform both parental species when subjected to drought. Our results suggest that hybridization does not result in individuals with intermediate mechanisms related to drought resistance, but with a unique trait combination leading to high growth when water availability is high (similar to the most vulnerable parental species) and high survival under drought stress (similar to the more resistant parental species). Certain uncoupling between symplastic and apoplastic resistence to drought was observed in hybrids, as well as decreased physiological-wood anatomical plasticity compared to parental species. The long-term consequences in terms of adaptive response to drought of this particular trait combination of hybrids remain still unknown.
Instituto de Fisiología y Recursos Genéticos Vegetales
Fil: Lopez Lauenstein, Diego. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Fernandez, Marí­a Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche. Grupo de Ecología Forestal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Verga, Anibal. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
description Natural hybridization commonly produces individuals with intermediate morphological and genetic characteristics, but their response to environmental stress is still uncertain, with some studies showing that transgressive performance would be common. Prosopis chilensis and Prosopis flexuosa are the most important tree species from Arid Chaco, South-America. Both species occupy different ecological niches in terms of water availability. Genetic and morphological studies have demonstrated the existence of interspecific hybrids in contact areas between these species. Hybrids are characterized by clear intermediate morphological characteristics, which have taxonomical value, and genetic structure compared to both parental species. We studied mechanisms implicated in drought stress tolerance in seedlings of P. chilensis, P. flexuosa and their interspecific hybrids trying to elucidate if hybrids have a morpho-physiological, growth and survival intermediate response to drought compared to differential parental responses or if they out-perform both parental species when subjected to drought. Our results suggest that hybridization does not result in individuals with intermediate mechanisms related to drought resistance, but with a unique trait combination leading to high growth when water availability is high (similar to the most vulnerable parental species) and high survival under drought stress (similar to the more resistant parental species). Certain uncoupling between symplastic and apoplastic resistence to drought was observed in hybrids, as well as decreased physiological-wood anatomical plasticity compared to parental species. The long-term consequences in terms of adaptive response to drought of this particular trait combination of hybrids remain still unknown.
publishDate 2013
dc.date.none.fl_str_mv 2013-02
2018-10-29T15:00:33Z
2018-10-29T15:00:33Z
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/20.500.12123/3731
https://link.springer.com/article/10.1007/s00468-012-0798-0#citeas
0931-1890
1432-2285 (Online)
https://doi.org/10.1007/s00468-012-0798-0
url http://hdl.handle.net/20.500.12123/3731
https://link.springer.com/article/10.1007/s00468-012-0798-0#citeas
https://doi.org/10.1007/s00468-012-0798-0
identifier_str_mv 0931-1890
1432-2285 (Online)
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv Trees 27 (1) : 285–296. (February 2013)
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 12.982451

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