Browsing Norges arktiske universitetsmuseum by Author "Merkel, Marie Kristine Føreid"

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    • Lake sedimentary DNA accurately records 20th Century introductions of exotic conifers in Scotland 

      Sjøgren, Per Johan; Edwards, Mary Elizabeth; Gielly, Ludovic; Langdon, Cathrine; Croudace, I.W.; Merkel, Marie Kristine Føreid; Thierry, Fonville; Alsos, Inger Greve (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-09-28)
      Sedimentary DNA (sedDNA) has recently emerged as a new proxy for reconstructing past vegetation, but its taphonomy, source area and representation biases need better assessment. We investigated how sedDNA in recent sediments of two small Scottish lakes reflects a major vegetation change, using well-documented 20th Century plantations of exotic conifers as an experimental system. We used next-generation ...

    • Plant DNA in sediments: to which degree do they represent the flora? 

      Alsos, Inger Greve; Coissac, Eric; Edwards, Mary E.; Merkel, Marie Kristine Føreid; Gielly, Ludovic; Sjögren, Per; Taberlet, Pierre; Yoccoz, Nigel Gilles (Conference object; Konferansebidrag, 2015-05)

    • Sedimentary ancient DNA from Lake Skartjørna, Svalbard: Assessing the resilience of arctic flora to Holocene climate change 

      Alsos, Inger Greve; Sjögren, Per Johan E.; Edwards, Mary E.; Landvik, Jon Y.; Gielly, Ludovic; Forwick, Matthias; Coissac, Eric; Brown, Antony G; Jakobsen, Leif Vidar; Merkel, Marie Kristine Føreid; Pedersen, Mikkel Winter (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-11-11)

    • Shotgun-sequencing of plant DNA: Selection og material and methods 

      Merkel, Marie Kristine Føreid; Pitelkova, Iva; Lammers, Youri; Coissac, Eric; Alberti, Adriana; Dossat, Carole; Kirchefer, Andreas; Alsos, Inger Greve (Conference object; Konferansebidrag, 2017)
      Initially, rbcLaand ITS2 were PCR amplified and Sanger sequenced for 564 species from 1900 specimens. To increase the amount of the genome covered, shotgun sequencing of 1670 species is in progress. Our Sanger analyses had a success rate of 74% and 85% for ITS2 and rbcLa, respectively. Overall success rate of Sanger sequencing decreased with later collection date in the year. Preliminary results of ...