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dc.contributor.author
Aparicio, Alejandro
dc.contributor.author
Zuki, Sebastián Maximiliano
dc.contributor.author
Azpilicueta, María Marta
dc.contributor.author
Barbero, Fernando Alvaro
dc.contributor.author
Pastorino, Mario Juan
dc.date.available
2018-05-03T15:40:31Z
dc.date.issued
2015-04-01
dc.identifier.citation
Aparicio, Alejandro; Zuki, Sebastián Maximiliano; Azpilicueta, María Marta; Barbero, Fernando Alvaro; Pastorino, Mario Juan; Genetic versus environmental contributions to variation in seedling resprouting in Nothofagus obliqua; Springer Heidelberg; Tree Genetics & Genomes; 11; 23; 1-4-2015; 23-36
dc.identifier.issn
1614-2942
dc.identifier.uri
http://hdl.handle.net/11336/43954
dc.description.abstract
Resprouting is an almost universal functional trait in temperate angiosperms and confers persistence at an individual level after the loss of above-ground biomass. The importance of genetic versus environmental sources of intraspecific variation in resprouting traits is largely unknown. We conducted two genetic field trials, 400 m apart in altitude, in order to sequentially assess seedling resprouting in four environmentally contrasting Argentinean populations of Nothofagus obliqua Mirb. (Oerst). We also performed one nursery test to determine whether populations differed in early root/shoot biomass partition, a key trade-off affecting resprouting. Initial resprouting vigour and final survival were higher in our warmer test site, located 300 m below the core range of the species. The main contrasts between populations were found for pre-clipping seedling size and resprouting profusion, the latter trait showing a clear trade-off with resprouting vigour. Site × population interactions were due mainly to the behaviour of the highest altitude population, suggesting its divergent adaptive trajectory and higher plasticity for resprouting traits. Within populations, trait heritability was low, in general. Episodic frost, which may limit resprouting vigour and final success, had a lower incidence in the altitudinal and xeric limit populations. Overall, our work revealed genetic variation between populations of N. obliqua in traits that determine the success of seedling resprouting, probably associated with divergent selection. Low trait heritability suggests limited in situ micro-evolutionary capacities for resprouting traits under ongoing climate warming; phenotypic plasticity may play an important role in population persistence at the low positions of the elevation gradients N. obliqua currently inhabits.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer Heidelberg
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Mediterranean Climate
dc.subject
Southern Ansiosperm
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Fitness Traits
dc.subject
Population Differentiation
dc.subject
Heritability
dc.subject.classification
Otras Ciencias Biológicas
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Genetic versus environmental contributions to variation in seedling resprouting in Nothofagus obliqua
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-09T16:53:54Z
dc.journal.volume
11
dc.journal.number
23
dc.journal.pagination
23-36
dc.journal.pais
Alemania
dc.journal.ciudad
Heidelberg
dc.description.fil
Fil: Aparicio, Alejandro. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche. Grupo de Genética Forestal; Argentina
dc.description.fil
Fil: Zuki, Sebastián Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
dc.description.fil
Fil: Azpilicueta, María Marta. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche. Grupo de Genética Forestal; Argentina
dc.description.fil
Fil: Barbero, Fernando Alvaro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina
dc.description.fil
Fil: Pastorino, Mario Juan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Patagonia Norte. Estación Experimental Agropecuaria San Carlos de Bariloche. Grupo de Genética Forestal; Argentina
dc.journal.title
Tree Genetics & Genomes
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s11295-015-0847-0
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs11295-015-0847-0
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