Adaptation and coordinated evolution of plant hydraulic traits
Sanchez-Martinez, Pablo (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Martínez Vilalta, Jordi 1975- (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Dexter, Kyle G. (University of Edinburgh. School of GeoSciences)
Segovia, Ricardo A. (University of Edinburgh. School of GeoSciences)
Mencuccini, Maurizio (Centre de Recerca Ecològica i d'Aplicacions Forestals)

Fecha:	2020
Resumen:	Hydraulic properties control plant responses to climate and are likely to be under strong selective pressure, but their macro-evolutionary history remains poorly characterised. To fill this gap, we compiled a global dataset of hydraulic traits describing xylem conductivity (Ks), xylem resistance to embolism (P50), sapwood allocation relative to leaf area (Hv) and drought exposure (ψmin), and matched it with global seed plant phylogenies. Individually, these traits present medium to high levels of phylogenetic signal, partly related to environmental selective pressures shaping lineage evolution. Most of these traits evolved independently of each other, being co-selected by the same environmental pressures. However, the evolutionary correlations between P50 and ψmin and between Ks and Hv show signs of deeper evolutionary integration because of functional, developmental or genetic constraints, conforming to evolutionary modules. We do not detect evolutionary integration between conductivity and resistance to embolism, rejecting a hardwired trade-off for this pair of traits.
Ayudas:	Ministerio de Economía y Competitividad CGL2013-46808-R Agencia Estatal de Investigación CGL2017-89149-C2-1-R Ministerio de Ciencia e Innovación FPU18/04945
Nota:	Altres ajuts: ICREA Academia award
Derechos:	Tots els drets reservats.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió acceptada per publicar
Materia:	Global ; Plant hydraulics ; Evolution ; Phylogenetic comparative methods ; Phylogenetic mixed models ; Adaptation ; Phylogenetic conservatism ; Evolutionary correlation
Publicado en:	Ecology letters, Vol. 23, Issue 11 (November 2020) , p. 1599-1610, ISSN 1461-0248

DOI: 10.1111/ele.13584
PMID: 32808458

Postprint 69 p, 3.7 MB

El registro aparece en las colecciones:
Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals)
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