Spatial genetic structure within a metallicolous population of Arabidopsis halleri, a clonal, self-incompatible and heavy-metal-tolerant species

Arabidopsis halleri, a close wild relative of A. thaliana, is a clonal, insect‐pollinated herb tolerant to heavy metals (Zn, Pd, Cd) and a hyperaccumulator of Zn and Cd. It is of particular interest in the study of evolutionary processes and phytoremediation. However, little is known about its popul...

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Bibliographic Details
Published in:Molecular ecology 2004-10, Vol.13 (10), p.2959-2967
Main Authors: Rossum, F. van, Bonnin, I, Fenart, S, Pauwels, M, Petit, D, Saumitou-Laprade, P
Format: Article
Language:English
Subjects:
Analysis of Variance
Arabidopsis - genetics
Arabidopsis - metabolism
Arabidopsis - physiology
Arabidopsis halleri
clonal spread
Demography
Environment
Evolution
France
Genetic diversity
Genetic Variation
Genetics, Population
Genotype
Genotype & phenotype
Geography
heavy metal tolerance
Herbs
Life Sciences
Metals, Heavy - analysis
Microsatellite Repeats - genetics
Plant populations
pollen dispersal
Pollution
Regression Analysis
Reproduction - physiology
seed dispersal
Soil Pollutants - analysis
spatial autocorrelation
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Summary:Arabidopsis halleri, a close wild relative of A. thaliana, is a clonal, insect‐pollinated herb tolerant to heavy metals (Zn, Pd, Cd) and a hyperaccumulator of Zn and Cd. It is of particular interest in the study of evolutionary processes and phytoremediation. However, little is known about its population gene flow patterns and the structure of its genetic diversity. We used five microsatellite loci to investigate the genetic structure at a fine spatial scale (10 cm to 500 m) in a metallicolous population of A. halleri. We also studied the contributions made by clonal propagation and sexual reproduction (seed and pollen dispersal) to the genetic patterns. Clonal diversity was high (DG > 0.9). Clonal spread occurs only at short distances (
ISSN:0962-1083
1365-294X
DOI:10.1111/j.1365-294X.2004.02314.x