Genetic differentiation of metallicolous and non-metallicolous Armeria maritima (Mill.) Willd. taxa (Plumbaginaceae) in Central Europe

Baumbach, Henryk; Hellwig, Frank H.

doi:10.1007/s00606-007-0593-3

Cited by 29 publications

(28 citation statements)

References 21 publications

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“…This rationale has been confirmed in several studies (Deng et al 2007;Mengoni et al 2001;Meyer et al 2010;Nordal et al 1999;Wojcik et al 2013). Other investigations, however, found comparable levels of neutral genetic variability in both M and NM populations (Baumbach and Hellwig 2007;Bizoux et al 2008;Pauwels et al 2005), or even slightly higher level within the M group (Słomka et al 2011). Such contrasting patterns suggest that a simple comparison of edaphic types may not be sufficient to understand the structure of genetic diversity within and among populations of pseudometallophyte species.…”

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confidence: 88%

Patterns of genetic divergence among populations of the pseudometallophyte Biscutella laevigata from southern Poland

et al. 2014

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Background and aims Pseudometallophytes are model organisms for adaptation and population differentiation because they persist in contrasting edaphic conditions of metalliferous and non-metalliferous habitats. We examine patterns of genetic divergence and local adaptation of Biscutella laevigata to assess historical and evolutionary processes shaping its genetic structure. Methods We sampled all known populations of B. laevigata in Poland and analyzed respective soil metal concentrations. For genotyping we used nine nuclear microsatellite loci. Population genetic pools were identified (Bayesian clustering) and we estimated genetic parameters and demographic divergence between metallicolous and non-metallicolous populations (ABCapproach). Results Populations clustered into two groups which corresponded to their edaphic origin and diverged 1,200 generations ago. We detected a significant decrease in genetic diversity and evidence for a recent bottleneck in metallicolous populations. Genetic structure was unrelated to site distribution but is rather influenced by environmental conditions (i.e. soil metal concentration). Conclusions The intriguing disjunctive distribution of B. laevigata in Poland results from a fragmentation of the species range during the Holocene, rather than recent long-distance-dispersal events. The genetic structure of populations, however, continues to be modified by microevolutionary processes at anthropogenic sites. These clear divergence patterns promote B. laevigata as a model species for plant adaptation to polluted environments.

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confidence: 88%

Patterns of genetic divergence among populations of the pseudometallophyte Biscutella laevigata from southern Poland

et al. 2014

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“…Five primer combinations have been used to generate 199 polymorphic loci. Genetic variability within Minuartia verna-populations was lower (14 % average heterozygosity; 37 % polymorphic loci) than in metallicolous populations of Silene vulgaris (see below) and Armeria maritima (Baumbach & Hellwig, 2007). Within non-metallicolous populations, genetic variability was clearly and significantly higher than within metallicolous populations.…”

Section: Evolutionary Aspects and Taxonomic Changesmentioning

confidence: 90%

“…Furthermore, results of an AFLP study (Baumbach & Hellwig, 2007) give strong evidence that metallicolous populations have been founded from the ancestral non-metallicolous populations repeatedly and independently in different geographical regions. The metallicolous Armeria maritima microendemics "hornburgensis", "bottendorfensis", "eifeliaca", "calaminaria" should not be given formal rank as varieties or subspecies within A. maritima.…”

Section: Evolutionary Aspects and Taxonomic Changesmentioning

confidence: 99%

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Metallophytes and Metallicolous Vegetation: Evolutionary Aspects, Taxonomic Changes and Conservational Status in Central Europe

Baumbach¹

2012

Perspectives on Nature Conservation - Patterns, Pressures and Prospects

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“…Isozyme and nuclear marker data suggest that tolerance has evolved multiple times independently [61][62][63]. Furthermore, this tolerance is maintained even in the face of substantial gene flow between neighbouring nontolerant populations, indirect evidence for the strength of selection on the metalliferous soil.…”

Section: A5 Armeria Maritima L Populations Of Armeria Maritimamentioning

confidence: 99%

Parallel Ecological Speciation in Plants?

Ostevik

Moyers

Owens

et al. 2012

International Journal of Ecology

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Populations that have independently evolved reproductive isolation from their ancestors while remaining reproductively cohesive have undergone parallel speciation. A specific type of parallel speciation, known as parallel ecological speciation, is one of several forms of evidence for ecology's role in speciation. In this paper we search the literature for candidate examples of parallel ecological speciation in plants. We use four explicit criteria (independence, isolation, compatibility, and selection) to judge the strength of evidence for each potential case. We find that evidence for parallel ecological speciation in plants is unexpectedly scarce, especially relative to the many well-characterized systems in animals. This does not imply that ecological speciation is uncommon in plants. It only implies that evidence from parallel ecological speciation is rare. Potential explanations for the lack of convincing examples include a lack of rigorous testing and the possibility that plants are less prone to parallel ecological speciation than animals.

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Genetic differentiation of metallicolous and non-metallicolous Armeria maritima (Mill.) Willd. taxa (Plumbaginaceae) in Central Europe

Cited by 29 publications

References 21 publications

Patterns of genetic divergence among populations of the pseudometallophyte Biscutella laevigata from southern Poland

Patterns of genetic divergence among populations of the pseudometallophyte Biscutella laevigata from southern Poland

Metallophytes and Metallicolous Vegetation: Evolutionary Aspects, Taxonomic Changes and Conservational Status in Central Europe

Parallel Ecological Speciation in Plants?

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