Genetic structure of peripheral, island-like populations: a case study of Saponaria bellidifolia Sm. (Caryophyllaceae) from the Southeastern Carpathians

Csergö, Anna-Mária; Schönswetter, Peter; Mara, Gyöngyvér; Deák, Tamás; Boşcaiu, N.; Höhn, Mária

doi:10.1007/s00606-008-0129-5

Cited by 21 publications

(18 citation statements)

References 37 publications

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“…These old geological formations differ substantially from the surrounding landscape of valleys, forests and flat areas in age, geomorphology, geology, soil types and vegetation history, and therefore classify for mainland islands rather than habitat fragments. An earlier study in this system has shown a positive response of genetic diversity of S. bellidifolia to outcrop area/heterogeneity and isolation (Csergő et al, 2009b). The primary aim of the research reported here is to test the hypothesis that patterns of both the intraspecific-and interspecific diversity are shaped by similar landscape level mechanisms.…”

Section: Introductionmentioning

confidence: 91%

“…In a previous RAPD-PCR study (Csergő et al, 2009b), 10 individuals were randomly sampled from seven of the eight S. bellidifolia outcrops described above. One site (COR) was omitted because of the small population size (six individuals).…”

Section: Sampling Proceduresmentioning

confidence: 99%

“…Genetic diversity estimates were average RAPD band richness (a measure of observed genetic diversity) and expected heterozygosity H exp (a measure of expected genetic diversity) and were based on a previous RAPD study of 10 S. bellidifolia individuals/outcrop (Csergő et al, 2009b). The corresponding species diversity estimates were extracted from rarefaction curves computed from the presence-absence floristic matrix of each outcrop in EstimateS (Colwell, 2009), and were expressed as observed number of species (Mao Tau index) and expected number of species (Chao 2 index), respectively (Colwell, 2009;Gotelli and Chao, 2013).…”

Section: Local Diversity Estimatesmentioning

confidence: 99%

“…Pairwise genetic distances computed based on Nei's (1978) similarities between S. bellidifolia populations were taken from Csergő et al (2009b). Pairwise dissimilarity in species composition of S. bellidifolia habitat was computed from the presence-absence vegetation matrix of each outcrop using Euclidean distances.…”

Section: Regional Diversity Estimatesmentioning

confidence: 99%

“…To visualize the differences between genetic and species composition dissimilarity, a hierarchical cluster analysis was run on the species dissimilarity matrix using the ''average'' clustering method (HCLUST, R 2.14.1) and the results were compared with an earlier analysis of genetic dissimilarity (Fig. 3 in Csergő et al, 2009b). …”

Section: Relationship Of Intra-and Interspecific Diversitymentioning

confidence: 99%

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Positive relationship between genetic- and species diversity on limestone outcrops in the Carpathian Mountains

Csergő

Hufnágel

Höhn

2014

Ecological Complexity

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Section: Introductionmentioning

confidence: 91%

Section: Sampling Proceduresmentioning

confidence: 99%

Section: Local Diversity Estimatesmentioning

confidence: 99%

Section: Regional Diversity Estimatesmentioning

confidence: 99%

Section: Relationship Of Intra-and Interspecific Diversitymentioning

confidence: 99%

See 3 more Smart Citations

Positive relationship between genetic- and species diversity on limestone outcrops in the Carpathian Mountains

Csergő

Hufnágel

Höhn

2014

Ecological Complexity

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Diversification and independent polyploid origins in the disjunct species Alyssum repens from the Southeastern Alps and the Carpathians

Melichárková

Španiel

Marhold

et al. 2019

American J of Botany

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Premise Disjunct distributions have been commonly observed in mountain plant species and have stimulated phylogeographic and phylogenetic research. Here we studied Alyssum repens, a member of the polyploid species complex A. montanum−A. repens, which exhibits SE Alpine‐Carpathian disjunctions with a large elevational span and consists of diploid and tetraploid populations. We aimed to investigate the species‘ genetic and cytotype structure in the context of its distribution patterns, to elucidate the polyploid origins and to propose an appropriate taxonomic treatment. Methods We combined AFLP fingerprinting markers, sequence variation of the highly repetitive ITS region of rDNA and the low‐copy DET1 nuclear gene, genome size, and morphometric data. Results We identified four geographically structured genetic lineages. One consisted of diploid populations from the foothills of the Southeastern Alps and neighboring regions, and the three others were allopatric montane to alpine groups comprising diploids and tetraploids growing in the Southeastern Carpathians and the Apuseni Mts. in Romania. Conclusions We inferred a vicariance scenario associated with Quaternary climatic oscillations, accompanied by one auto‐ and two allopolyploidization events most likely involving a northern Balkan relative. Whereas genetic differentiation and allopatric distribution would favor the taxonomic splitting of this species, the genetic lineages largely lack morphological distinguishability, and their ecological, cytotype and genome size divergence is only partial. Even though we probably face here a case of incipient speciation, we propose to maintain the current taxonomic treatment of Alyssum repens as a single, albeit variable, species.

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Biogeography of high‐mountain plants in the Carpathians: An emerging phylogeographical perspective

Ronikier

2011

TAXON

109

131

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The Carpathians belong to the main elements of the European Alpine System and have an important biogeographical location between the Balkan ranges in the South, the Alps in the West and the Scandinavian range in the North. However, until recently this area was rarely included in detailed phylogeographical studies that could bring insights into its biogeographical history, links with other mountain ranges and contemporary genetic structure of populations. Here, available phylogeographical studies on high‐mountain plants that include data concerning the Carpathians are reviewed in order to (1) discuss regional phylogeographical structure and divergence of the Carpathian populations from those in other European mountain ranges, and (2) outline further perspectives of the Carpathian phylogeography. Analysis of available studies revealed the complexity of the biogeographical history of high‐mountain plants. The studies show a deep phylogeographical structure in the Carpathians, mostly concurring with classical biogeographical boundaries, and suggesting a long‐term isolation and restricted gene flow between the main Carpathian regions. For some species, though, recent dispersal events among isolated mountain ranges were detected. Such contrasting patterns were found at a larger geographical scale as well (e. g., between the Carpathians and the Alps). Several examples suggest the importance of the Carpathians in migration of arctic‐alpine plants from the East and towards the North. In most reviewed studies, however, the Carpathians are only marginally represented and detailed intraspecific studies based on dense population coverage in all disjunct areas of species' ranges are clearly needed to obtain reliable information and confirm the preliminary phylogeographical patterns emerging from the overview presented here.

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Genetic structure of peripheral, island-like populations: a case study of Saponaria bellidifolia Sm. (Caryophyllaceae) from the Southeastern Carpathians

Cited by 21 publications

References 37 publications

Positive relationship between genetic- and species diversity on limestone outcrops in the Carpathian Mountains

Positive relationship between genetic- and species diversity on limestone outcrops in the Carpathian Mountains

Diversification and independent polyploid origins in the disjunct species Alyssum repens from the Southeastern Alps and the Carpathians

Biogeography of high‐mountain plants in the Carpathians: An emerging phylogeographical perspective

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