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
- Institución
- Instituto Nacional de Tecnología Agropecuaria
- OAI Identificador
- oai:localhost:20.500.12123/3731
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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/restrictedAccess2025-09-29T13:44:28Zoai: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:l2025-09-29 13:44:29.192INTA 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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1844619127587602432 |
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12.559606 |