English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/98771
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Divergence between phenotypic and genetic variation within populations of a common herb across Europe

AuthorsVillellas, Jesús ; Berjano, Enrique Regina; Terrab, Anass; García González, María Begoña
Keywordsphenotype
latitudinal gradient
genotype
range margin
European Atlantic coast
environmental fluctuations
adaptive variation
Plantago coronopus
rainfall
widespread short-lived perennial
evolutionary potential
Issue Date2014
PublisherEcological Society of America
CitationEcosphere 5(5): (2014)
AbstractAnalyzing the pattern and causes of phenotypic and genetic variation within and among populations might help to understand life history variability in plants, and to predict their responses to changing environmental conditions. Here we compare phenotypic variation and genetic diversity of the widespread herb Plantago coronopus across Europe, and evaluate their relationship with environmental and geographical factors. Genetic diversity was estimated in 18 populations from molecular markers with AFLP. Phenotypic variation was measured in a subset of 11 populations on six life history traits (plant size, plant growth, fecundity, seed mass, mucilage production and ratio between two functionally different seed morphs). To account for ecological and geographical correlates, we estimated variability in local temperature, precipitation and intraspecific competition, and accounted for the central vs. peripheral position of populations. Phenotypic variation and genetic diversity were not significantly correlated within populations throughout the species' range. Phenotypic variation was positively linked to precipitation variability, whereas genetic diversity was correlated with the position of populations, suggesting that both types of variation are shaped by different processes. Precipitation seems to have acted as a selective agent for variation within populations in most life history traits, whereas the species' post-glacial demographic history has likely reduced genetic diversity in northern peripheral populations with respect to central ones. The positive association between precipitation variability and phenotypic variation also suggests that plant populations may have higher adaptive potential in ecologically variable rather than stable environments. Our study offers an additional criterion when predicting the future performance of species under environmental changes. © 2014 Villellas et al. - Copyright by the Ecological Society of America
Publisher version (URL)http://dx.doi.org/10.1890/ES13-00291.1
URIhttp://hdl.handle.net/10261/98771
DOI10.1890/ES13-00291.1
Identifiersdoi: 10.1890/ES13-00291.1
issn: 2150-8925
e-issn: 2150-8925
Appears in Collections:(IPE) Artículos
Files in This Item:
File Description SizeFormat 
Vilellas_et_al_Divergence_herb_Europe_Ecosphere2014.pdf1,45 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.