Advertisement

Plant Systematics and Evolution

, Volume 242, Issue 1–4, pp 137–147 | Cite as

Cochlearia macrorrhiza (Brassicaceae): A bridging species between Cochlearia taxa from the Eastern Alps and the Carpathians?

  • M. KochEmail author
  • C. Dobeš
  • K. G. Bernhardt
  • J. Kochjarová
Article

Abstract

Cochlearia macrorrhiza is one of the most highly endangered species in Central Europe and less than five individuals survived at its natural stand in a lowland area between the Eastern Alps and the Carpathians. Amplified fragment length polymorphisms (AFLPs) confirmed the status of C. macrorrhiza as a distinct taxon. Lowland C. macrorrhiza does not bridge the distribution of montainous and alpine Cochlearia species from the Eastern Alps and the Carpathians genetically, and C. macrorrhiza represents a separate lineage which evolved from diploid Cochlearia as C. excelsa in East Austrian high alpine regions did. Another species considered in this study, the Romanian C. borzaeana is more closely related to C. tatrae from the High Tatra mountains than to C. pyrenaica from Slovakia or Austria and the AFLP results suggest a single origin of alpine 2n=42 taxa. Genetic differentiation within and between populations is highly structured geographically, and the AFLP data favour a former widespread distribution of C. pyrenaica in mountainous regions and a parallel evolution of high alpine taxa in the Eastern Alps and the Carpathians, respectively.

Keywords

AFLPs alpine plants Brassicaceae Cochlearia phylogeography ice age refugia Pleistocene vicariance 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Wien 2003

Authors and Affiliations

  • M. Koch
    • 1
  • C. Dobeš
    • 2
  • K. G. Bernhardt
    • 2
  • J. Kochjarová
    • 3
  1. 1.Heidelberger Institute for Plant Sciences, Biodiversity and Plant SystematicsUniversity of HeidelbergHeidelbergGermany
  2. 2.Institute of BotanyUniversity of Agricultural Sciences ViennaViennaAustria
  3. 3.Botanical Garden ComeniusComenius UniversitySlovakia

Personalised recommendations