Reference : An explicit test for the contribution of environmental maternal effects to rapid clin...
Scientific journals : Article
Life sciences : Genetics & genetic processes
Life sciences : Environmental sciences & ecology
Life sciences : Biochemistry, biophysics & molecular biology
An explicit test for the contribution of environmental maternal effects to rapid clinal differentiation in an invasive plant
Monty, Arnaud mailto [Université de Liège - ULiège > > Gembloux Agro-Bio Tech >]
Lebeau, Julie [Université de Liège - ULiège > > > >]
Meerts, Pierre [Université Libre de Bruxelles - ULB > > > > Laboratoire de Génétique et Ecologie végétales > >]
Mahy, Grégory mailto [Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech >]
Journal of Evolutionary Biology
Blackwell Science
Yes (verified by ORBi)
United Kingdom
[en] altitude ; climatic gradient ; clinal variation ; invasive plant ; maternal environment ; seed mass
[en] Population differentiation of alien invasive plants within their non-native range has received increasingly more attention. Common gardens are typically used to assess the levels of genotypic differentiation among populations. However, in such experiments, environmental maternal effects can influence phenotypic variation among individuals if seed sources are collected from field populations under variable environmental regimes. In the present study, we investigated the causes of an altitudinal cline in an invasive plant. Seeds were collected from Senecio inaequidens (Asteraceae) populations along an altitudinal gradient in southern France. In addition, seeds from the same populations were generated by intra-population crossings in a climatic chamber. The two seed lots were grown in a common garden in Central Belgium to identify any evidence of environmentally induced maternal effects and/or an altitudinal cline in a suite of life-history traits. Results failed to detect any environmental maternal effects. However, an altitudinal cline in plant height and above-ground biomass was found to be independent of the maternal environment.
Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS
FRFC 2.4605.06
Researchers ; Students

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