Abstract
Our aim was to evaluate the potential of existing herbarium collections in reconstructing the past population history of the rediscovered clone of the regionally extinct Blechnum spicant by comparing it with herbarium material from previous sites of occurrences in Finland and elsewhere in northern Europe, as well as to reveal the genetic and geographic relationship among the samples. We detected a total of nine polymorphic sites within the three sequenced regions, two SCAR markers developed now for B. spicant and the chloroplast trnL-trnF spacer, totalling 763 bp. Despite low variability, the phylogeographic analysis revealed the presence of some geographic pattern among the samples, of which all except one represented herbarium samples of up to 100 years of age. The rediscovered clone of B. spicant proved to represent the prevalent genotype occurring in northern Europe. The studied sequences were neutral in terms of evolution. It is apparent that existing herbarium collections are useful resources for a range of evolutionary and population studies.
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Acknowledgements
The study was supported by a grant from Kuopion Luonnon Ystäväin Yhdistys r.y. We thank M. Kaukonen and the personnel at the Helsinki Herbarium for help with the specimens.
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Korpelainen, H., Pietiläinen, M. Effort to reconstruct past population history in the fern Blechnum spicant . J Plant Res 121, 293–298 (2008). https://doi.org/10.1007/s10265-008-0158-8
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DOI: https://doi.org/10.1007/s10265-008-0158-8