PANGAEA_989275 Polarella glacialis gene copies from Yermak Plateau sediment core KH21-234-34GC1 Mayers, Kyle M J; Vollmar, Nele Manon; Cordier, Tristan; Weiner, Agnes K M; Müller, Juliane; De Schepper, Stijn Polarella glacialis gene copies from Yermak Plateau sediment core KH21-234-34GC1 2026-01-30 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.989275 Investigator Kyle M J Mayers kyma@norceresearch.no Earth Science Cruise/expedition Station label Core Section DEPTH, sediment/rock Depth, section Sample ID Laboratory code/label AGE Gene copies per gram sediment geoscientificInformation Arctic Dinoflagellate gene copy number Gravity corer KH21-234 KH21-234-34GC Magnetic susceptibility Radiocarbon Sea ice Droplet digital polymerase chain reaction (ddPCR); DNA extracted using DNeasy PowerMax Soil Kit (Qiagen) Average Kronprins Haakon 2021-07-07 2021-07-07 Complete 81.21992801 81.21992801 2.371095542 2.371095542 0.1 m (DEPTH, sediment/rock) 4.5 m (DEPTH, sediment/rock) unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 816 data points text/tab-separated-values Mayers, Kyle M J; Vollmar, Nele Manon; Cordier, Tristan; Weiner, Agnes K M; Müller, Juliane; Larsen, Aud; De Schepper, Stijn (2026): First-year sea ice history in the Arctic Ocean inferred from ancient DNA of Polerella glacialis over the past 50,000 years. Earth and Planetary Science Letters, 678, 119809, https://doi.org/10.1016/j.epsl.2025.119809

Gene copies of the sympagic dinoflagellate Polarella glacialis were determined by droplet digital PCR on samples from marine sediment core KH21-234-34GC collected from the Yermak Plateu (81.2199280 ˚N, 2.3710955˚E ) with a gravity corer at 1011m water depth during cruise KH21-234. DNA from gravity core sediments was extracted in the NORCE ancient DNA laboratory using the DNeasy PowerMax Soil Kit (Qiagen). Primers targeting the ITS1 region of P. glacialis were used in ddPCR reactions to determine gene copies per g of sediment. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.989275"!

http://en.wikipedia.org/wiki/Kyr AGE https://doi.org/10.1016/j.epsl.2025.119809 First-year sea ice history in the Arctic Ocean inferred from ancient DNA of Polerella glacialis over the past 50,000 years https://hdl.handle.net/11250/3022675 KH21-234 https://npolar.no/en/kronprins-haakon/ Kronprins Haakon DIF 9.4 2026-01-30 2026-04-22