caa a22 4500 445857986 CHVBK 20180317145434.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10592-011-0215-z doi (NATIONALLICENCE)springer-10.1007/s10592-011-0215-z Trans-Atlantic genetic uniformity in the rare snowbed sedge Carex rufina [Elektronische Daten] [Kristine Westergaard, Inger Alsos, Torstein Engelskjøn, Kjell Flatberg, Christian Brochmann] The red-listed, amphi-Atlantic sedge Carex rufina is highly specialized to certain alpine snowbeds, and threatened by current changes in snow cover duration and moisture conditions. Here we address its range-wide genetic diversity, history, and conservation using amplified fragment length polymorphisms (AFLPs). Despite extensive primer testing, we detected very low overall diversity (4.1% polymorphic markers). Only a single AFLP phenotype was found throughout Norway and across the Atlantic to Iceland and Greenland, while another was found in Canada, suggesting glacial survival in one East and one West Atlantic refugium. East Atlantic C. rufina has probably been heavily bottlenecked in a small refugium, possibly situated within the maximum limits of the ice sheets. Its lack of diversity is likely maintained through local clonal growth causing longevity of genotypes. Habitat availability appears as the main limiting factor for C. rufina, and its currently occupied habitats need to be preserved to ensure its long-time survival. The Author(s), 2011 AFLPs nationallicence Amphi-Atlantic disjunction nationallicence Conservation nationallicence Fragmented populations nationallicence Snowbeds nationallicence Westergaard Kristine Tromsø University Museum, University of Tromsø, 9037, Tromsø, Norway aut Alsos Inger Tromsø University Museum, University of Tromsø, 9037, Tromsø, Norway aut Engelskjøn Torstein Tromsø University Museum, University of Tromsø, 9037, Tromsø, Norway aut Flatberg Kjell NTNU Museum of Natural History and Archaeology, 7491, Trondheim, Norway aut Brochmann Christian National Centre for Biosystematics, Natural History Museum, University of Oslo, P.O. Box 1172, 0318, Blindern, Oslo, Norway aut Conservation Genetics Springer Netherlands 12/5(2011-10-01), 1367-1371 1566-0621 12:5<1367 2011 12 10592 https://doi.org/10.1007/s10592-011-0215-z text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10592-011-0215-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Westergaard Kristine Tromsø University Museum, University of Tromsø, 9037, Tromsø, Norway aut NATIONALLICENCE 700 1- Alsos Inger Tromsø University Museum, University of Tromsø, 9037, Tromsø, Norway aut NATIONALLICENCE 700 1- Engelskjøn Torstein Tromsø University Museum, University of Tromsø, 9037, Tromsø, Norway aut NATIONALLICENCE 700 1- Flatberg Kjell NTNU Museum of Natural History and Archaeology, 7491, Trondheim, Norway aut NATIONALLICENCE 700 1- Brochmann Christian National Centre for Biosystematics, Natural History Museum, University of Oslo, P.O. Box 1172, 0318, Blindern, Oslo, Norway aut NATIONALLICENCE 773 0- Conservation Genetics Springer Netherlands 12/5(2011-10-01), 1367-1371 1566-0621 12:5<1367 2011 12 10592 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer