Decoupled evolution of foliar freezing resistance, temperature niche and morphological leaf traits in Chilean <i>Myrceugenia</i>

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dc.contributor.authorPerez, Fernanda
dc.contributor.authorHinojosa, Luis F.
dc.contributor.authorOssa, Carmen G.
dc.contributor.authorCampano, Francisca
dc.contributor.authorOrrego, Fabiola
dc.date.accessioned2025-01-23T21:44:17Z
dc.date.available2025-01-23T21:44:17Z
dc.date.issued2014
dc.description.abstract1. Phylogenetic conservatism of tolerance to freezing temperatures has been cited to explain the tendency of plant lineages to grow in similar climates. However, there is little information about whether or not freezing resistance is conserved across phylogenies, and whether conservatism of physiological traits could explain conservatism of realized climatic niches. Here, we compared the phylogenetical lability of realized climatic niche, foliar freezing resistance and four morphological leaf traits that are generally considered to be adaptations to frost resistance in the Chilean species of Myrceugenia, which grows in a wide range of habitats.
dc.description.abstract2. We estimated the predicted niche occupancy profiles with respect to minimum temperature (minT) of all species. We measured foliar freezing resistance (using chlorophyll fluorescence), leaf size, leaf mass per area (LMA), stomatal and trichome densities of 10 individuals per species. Finally, we estimated phylogenetic signal, and we performed independent contrast analyses among all variables.
dc.description.abstract3. We found that both foliar freezing resistance and minT were subject to a significant phylogenetic signal, but the former had a stronger signal. We also detected a significant, but weak correlation between them (r = 0.49, P-one tail = 0.04). Morphological traits evolved independent of any phylogenetic effect.
dc.description.abstract4. Synthesis. Our results show that freezing resistance evolved in association with temperature niche, but with some delay that could result from phylogenetic inertia. Our results also show that morphological leaf traits are more labile than realized climatic niche and frost tolerance and that the formers probably evolved in association with microhabitat preferences.
dc.fuente.origenWOS
dc.identifier.doi10.1111/1365-2745.12261
dc.identifier.eissn1365-2745
dc.identifier.issn0022-0477
dc.identifier.urihttps://doi.org/10.1111/1365-2745.12261
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/101690
dc.identifier.wosidWOS:000338027500014
dc.issue.numero4
dc.language.isoen
dc.pagina.final980
dc.pagina.inicio972
dc.revistaJournal of ecology
dc.rightsacceso restringido
dc.subjectcold tolerance
dc.subjectfunctional traits
dc.subjectMediterranean forest
dc.subjectphylogenetic niche conservatism
dc.subjectplant-climate interactions
dc.subjectrealized climatic niche
dc.subjecttemperate forest
dc.subject.ods13 Climate Action
dc.subject.ods15 Life on Land
dc.subject.ods14 Life Below Water
dc.subject.odspa13 Acción por el clima
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa14 Vida submarina
dc.titleDecoupled evolution of foliar freezing resistance, temperature niche and morphological leaf traits in Chilean <i>Myrceugenia</i>
dc.typeartículo
dc.volumen102
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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