Infraspecific differentiation in the Balkan diploidCardamine acris (Brassicaceae): Molecular and morphological evidence |
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Authors: | Marián Perný Andreas Tribsch Mincho E Anchev |
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Institution: | 1. Institute of Botany, Slovak Academy of Sciences, Dúbravská cesta 14, SK-845 23, Bratislava, Slovak Republic 2. Department of Higher Plant Systematics and Evolution, Institute of Botany, University of Vienna, Rennweg 14, A-1030, Vienna, Austria 4. Department of Flora and Florogenesis, Institute of Botany, Bulgarian Academy of Sciences, Acad. G. Bonchev st., Bl. 23, 113, Sofia, Bulgaria
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Abstract: | Molecular and morphological variation in the Balkan diploidCardamine acris was studied by amplified fragment length polymorphism (AFLP) and multivariate morphometric analyses. Principal coordinate analysis and neighbour-joining analysis of the AFLP data showed three genetically differentiated groups of populations corresponding to their geographic origin. Following the results of molecular analysis three subspecies were recognized by a combination of morphological characters as shown by separate analyses of field-collected and cultivated plants. These subspecies are allopatric;C. acris subsp.acris occurs in most parts of the Balkan Peninsula, and newly described subsp.pindicola and subsp.vardousiae are endemic to the Northern Pindhos Mts. in Northwestern Greece, and Central Greece, respectively. The differentiation into geographically isolated subspecies is most probably caused by long-term isolation of populations in different mountain ranges of the Balkan Peninsula, possibly initiated during the cold periods of the Pleistocene. |
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