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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela; INIA Tacuarembó. |
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Fecha : |
21/02/2014 |
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Actualizado : |
22/02/2014 |
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Autor : |
Russell, H. ; Pastorini, D. ; Labandera, C. ; Curbelo, S. |
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Título : |
Comportamiento simbiotico de Lotus Subbiflorus spp Subbiflorus |
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Fecha de publicación : |
1990 |
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Fuente / Imprenta : |
ln: Seminario Nacional de Campo Natural, 2 : 1990 nov 15-16 : Tacuarembó Montevideo (Uruguay): Hemisferio Sur, 1990. |
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Páginas : |
p271-275 |
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Idioma : |
Español |
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Notas : |
Participaron en el seminario : INIA, Sociedad Uruguaya de Pasturas Naturales, Facultad de Agronomía, Plan Agropecuario |
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Thesagro : |
LOTUS; LOTUS CORNICULATUS; RHIZOBIUM. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 00716naa a2200205 a 4500
001 1044762
005 2014-02-22
008 1990 bl uuuu u00u1 u #d
100 1 $aRUSSELL, H.
245 $aComportamiento simbiotico de Lotus Subbiflorus spp Subbiflorus
260 $c1990
300 $ap271-275
500 $aParticiparon en el seminario : INIA, Sociedad Uruguaya de Pasturas Naturales, Facultad de Agronomía, Plan Agropecuario
650 $aLOTUS
650 $aLOTUS CORNICULATUS
650 $aRHIZOBIUM
700 1 $aPASTORINI, D.
700 1 $aLABANDERA, C.
700 1 $aCURBELO, S.
773 $tln: Seminario Nacional de Campo Natural, 2 : 1990 nov 15-16 : Tacuarembó Montevideo (Uruguay): Hemisferio Sur, 1990.
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Registro original : |
INIA La Estanzuela (LE) |
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Biblioteca (s) : |
INIA Treinta y Tres. |
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Fecha actual : |
08/04/2022 |
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Actualizado : |
01/09/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
VENEGAS GONZÁLEZ, A.; GIBSON CARPINTERO, S.; ANHOLETTO JUNIOR, C.; MATHIASEN, P.; PREMOLI, A. C.; FRESIA, P. |
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Afiliación : |
ALEJANDRO VENEGAS GONZÁLEZ, Hémera Centro de Observación de la Tierra, Escuela de Ingeniería Forestal, Facultad de Ciencias, Universidad Mayor, Santiago, Chile.; STEPHANIE GIBSON CARPINTERO, Hémera Centro de Observación de la Tierra, Escuela de Ingeniería Forestal, Facultad de Ciencias, Universidad Mayor, Santiago, Chile; CLAUDIO ANHOLETTO JUNIOR, Forest Management Program, Mamiraua Institute for Sustainable Development, Tefé, Brazil; PAULA MATHIASEN, Laboratorio Ecotono, Universidad Nacional del Comahue, Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA)-CONICET, Bariloche, Argentina; ANDREA CECILIA PREMOLI, Laboratorio Ecotono, Universidad Nacional del Comahue, Instituto de Investigaciones en Biodiversidad y Medioambiente (INIBIOMA)-CONICET, Bariloche, Argentina; PABLO FRESIA, Unidad Mixta UMPI, Institut Pasteur Montevideo + INIA, Montevideo, Uruguay. |
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Título : |
Tree-ring analysis and genetic associations help to understand drought sensitivity in the chilean endemic forest of Nothofagus macrocarpa. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Frontiers in Forests and Global Change, 28 February 2022, Volume 5, Article number 762347. OPEN ACCESS. Doi: https://doi.org/10.3389/ffgc.2022.762347 |
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Páginas : |
13 p. |
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DOI : |
10.3389/ffgc.2022.762347 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 21 August 2021; Accepted: 04 January 2022; Published: 28 February 2022.
Correspondence: Alejandro Venegas-González alejandro.venegas@umayor.cl ; Pablo Fresia pfresia@pasteur.edu.uy |
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Contenido : |
Extreme drought events have increased in frequency during the 20th century triggered by global change. Thus, understanding tree-growth resilience across different terrestrial biomes has become a key goal in forest ecology. Here, we evaluate the tree-growth resilience to severe drought in the only Mediterranean-type Ecosystems of South America, using five isolated populations of Nothofagus macrocarpa. For each tree, in each sampling site, we obtained wood cores and fresh leaves for dendrochronological and population genetic analysis, respectively. An evaluation was conducted on growth resilience components in response to the most extreme drought of the 20th century in central Chile (i.e., 1968, with ?80% of rainfall deficit), and the influence of genetic variability, biogeography, and tree size. We hypothesize that even though current remnant populations of N. macrocarpa are small and isolated, they have locally withstood changes in climate, and that they will be genetically diverse and have a high resilience to extreme droughts. We used nuclear microsatellite markers to estimate tree genetic variability in N. macrocarpa and investigate its correlation with phenotypic traits. We found a higher resistance in the two southernmost populations (mesic sites) than in the three northern populations (xeric sites), however those three xeric populations showed a higher recovery. In addition, a significant clear positive linear correlation between precipitation and resistance, and a negative recovery and relative resilience of tree growth to the extreme drought event of 1968 can be seen. High diversity for simple sequence repeats (SSR) markers was observed, although no population structure was inferred. Southern populations had a higher number of private alleles, which may be an indication of their long-lasting persistence under mesic conditions. Therefore, differences in resilience components are mainly explained by tree size and sites influences, but not genetic diversity. We concluded that observed differences in tree-growth resilience among sites can be explained by a great deal of phenotypic plasticity, fostered by genetically diverse gene pools. We advocate for a genome-wide analysis (i.e., SNP) so as to identify genomic regions correlated with phenotypic traits in order to improve the understanding of the evolutionary processes that shaped this forest resilience over time. MenosExtreme drought events have increased in frequency during the 20th century triggered by global change. Thus, understanding tree-growth resilience across different terrestrial biomes has become a key goal in forest ecology. Here, we evaluate the tree-growth resilience to severe drought in the only Mediterranean-type Ecosystems of South America, using five isolated populations of Nothofagus macrocarpa. For each tree, in each sampling site, we obtained wood cores and fresh leaves for dendrochronological and population genetic analysis, respectively. An evaluation was conducted on growth resilience components in response to the most extreme drought of the 20th century in central Chile (i.e., 1968, with ?80% of rainfall deficit), and the influence of genetic variability, biogeography, and tree size. We hypothesize that even though current remnant populations of N. macrocarpa are small and isolated, they have locally withstood changes in climate, and that they will be genetically diverse and have a high resilience to extreme droughts. We used nuclear microsatellite markers to estimate tree genetic variability in N. macrocarpa and investigate its correlation with phenotypic traits. We found a higher resistance in the two southernmost populations (mesic sites) than in the three northern populations (xeric sites), however those three xeric populations showed a higher recovery. In addition, a significant clear positive linear correlation between precipitation and resistance, and a neg... Presentar Todo |
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Palabras claves : |
CHILEAN FORESTS; DENDROECOLOGY; GENETIC DIVERSITY; GEOGRAPHIC ISOLATED FORESTS; GLOBAL CHANGE; MEDITERRANEAN-TYPE ECOSYSTEMS; PHENOTYPIC PLASTICITY TREE-GROWTH RESILIENCE. |
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Asunto categoría : |
P01 Conservación de la naturaleza y recursos de La tierra |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/16654/1/Frontier-Global-Change-2022-Venegas-Gonzalez.pdf
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Marc : |
LEADER 03685naa a2200301 a 4500
001 1062987
005 2022-09-01
008 2022 bl uuuu u00u1 u #d
024 7 $a10.3389/ffgc.2022.762347$2DOI
100 1 $aVENEGAS GONZÁLEZ, A.
245 $aTree-ring analysis and genetic associations help to understand drought sensitivity in the chilean endemic forest of Nothofagus macrocarpa.$h[electronic resource]
260 $c2022
300 $a13 p.
500 $aArticle history: Received: 21 August 2021; Accepted: 04 January 2022; Published: 28 February 2022. Correspondence: Alejandro Venegas-González alejandro.venegas@umayor.cl ; Pablo Fresia pfresia@pasteur.edu.uy
520 $aExtreme drought events have increased in frequency during the 20th century triggered by global change. Thus, understanding tree-growth resilience across different terrestrial biomes has become a key goal in forest ecology. Here, we evaluate the tree-growth resilience to severe drought in the only Mediterranean-type Ecosystems of South America, using five isolated populations of Nothofagus macrocarpa. For each tree, in each sampling site, we obtained wood cores and fresh leaves for dendrochronological and population genetic analysis, respectively. An evaluation was conducted on growth resilience components in response to the most extreme drought of the 20th century in central Chile (i.e., 1968, with ?80% of rainfall deficit), and the influence of genetic variability, biogeography, and tree size. We hypothesize that even though current remnant populations of N. macrocarpa are small and isolated, they have locally withstood changes in climate, and that they will be genetically diverse and have a high resilience to extreme droughts. We used nuclear microsatellite markers to estimate tree genetic variability in N. macrocarpa and investigate its correlation with phenotypic traits. We found a higher resistance in the two southernmost populations (mesic sites) than in the three northern populations (xeric sites), however those three xeric populations showed a higher recovery. In addition, a significant clear positive linear correlation between precipitation and resistance, and a negative recovery and relative resilience of tree growth to the extreme drought event of 1968 can be seen. High diversity for simple sequence repeats (SSR) markers was observed, although no population structure was inferred. Southern populations had a higher number of private alleles, which may be an indication of their long-lasting persistence under mesic conditions. Therefore, differences in resilience components are mainly explained by tree size and sites influences, but not genetic diversity. We concluded that observed differences in tree-growth resilience among sites can be explained by a great deal of phenotypic plasticity, fostered by genetically diverse gene pools. We advocate for a genome-wide analysis (i.e., SNP) so as to identify genomic regions correlated with phenotypic traits in order to improve the understanding of the evolutionary processes that shaped this forest resilience over time.
653 $aCHILEAN FORESTS
653 $aDENDROECOLOGY
653 $aGENETIC DIVERSITY
653 $aGEOGRAPHIC ISOLATED FORESTS
653 $aGLOBAL CHANGE
653 $aMEDITERRANEAN-TYPE ECOSYSTEMS
653 $aPHENOTYPIC PLASTICITY TREE-GROWTH RESILIENCE
700 1 $aGIBSON CARPINTERO, S.
700 1 $aANHOLETTO JUNIOR, C.
700 1 $aMATHIASEN, P.
700 1 $aPREMOLI, A. C.
700 1 $aFRESIA, P.
773 $tFrontiers in Forests and Global Change, 28 February 2022, Volume 5, Article number 762347. OPEN ACCESS. Doi: https://doi.org/10.3389/ffgc.2022.762347
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