Article (Scientific journals)
An explicit test for the contribution of environmental maternal effects to rapid clinal differentiation in an invasive plant
Monty, Arnaud; Lebeau, Julie; Meerts, Pierre et al.
2009In Journal of Evolutionary Biology, 22 (5), p. 917-926
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Keywords :
altitude; climatic gradient; clinal variation; invasive plant; maternal environment; seed mass
Abstract :
[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.
Disciplines :
Environmental sciences & ecology
Genetics & genetic processes
Biochemistry, biophysics & molecular biology
Author, co-author :
Monty, Arnaud ;  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 ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech
Language :
English
Title :
An explicit test for the contribution of environmental maternal effects to rapid clinal differentiation in an invasive plant
Publication date :
March 2009
Journal title :
Journal of Evolutionary Biology
ISSN :
1010-061X
eISSN :
1420-9101
Publisher :
Blackwell Science, Oxford, United Kingdom
Volume :
22
Issue :
5
Pages :
917-926
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
FRFC 2.4605.06
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 07 August 2009

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