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Liesner, Daniel; Pearson, Gareth; Bartsch, Inka; Rana, Shivani; Harms, Lars; Heinrich, Sandra; Bischof, Kai; Glöckner, Gernot; Valentin, Klaus (2022): Heat resilience of intraspecific outbred compared to inbred lineages in the kelp Laminaria digitata: gametogenesis, thermal tolerance and growth. PANGAEA, https://doi.org/10.1594/PANGAEA.940559

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Abstract:
In a mechanistic investigation of heat stress, heterosis (hybrid vigour), and underlying gene expression patterns, we assessed the thermal performance of inbred (selfings) and outbred (reciprocal crosses) sporophytes of the N-Atlantic kelp Laminaria digitata among clonal isolates from two divergent populations; one from the temperate North Sea (Helgoland) and one from the Arctic (Spitsbergen). First, we investigated the upper thermal tolerance of microscopic sporophytes in a 14-day experiment applying sublethal to lethal 20–23°C. We then subjected 4–7 cm long sporophytes to a control temperature (10°C), moderate (19°C) and sublethal to lethal heat stress (20.5°C) for 18 days to assess the physiological parameters growth and optimum quantum yield.
Keyword(s):
Arctic; gametogenesis; growth; Laboratory experiment; North Sea; quantum yield; Survival; Temperate
Supplement to:
Liesner, Daniel; Pearson, Gareth; Bartsch, Inka; Rana, Shivani; Harms, Lars; Heinrich, Sandra; Bischof, Kai; Glöckner, Gernot; Valentin, Klaus (2022): Increased Heat Resilience of Intraspecific Outbred Compared to Inbred Lineages in the Kelp Laminaria digitata: Physiology and Transcriptomics. Frontiers in Marine Science, https://doi.org/10.3389/fmars.2022.838793
Funding:
German Science Foundation (DFG), grant/award no. 318182282: Functional Variability and Dynamics of Responses of Marine Forests to Global Change (MARFOR)
German Science Foundation (DFG), grant/award no. VA105/25-1
Coverage:
Median Latitude: 66.584917 * Median Longitude: 9.958917 * South-bound Latitude: 54.178250 * West-bound Longitude: 7.891972 * North-bound Latitude: 78.991583 * East-bound Longitude: 12.025861
Date/Time Start: 2015-06-10T00:00:00 * Date/Time End: 2015-09-11T00:00:00
Minimum Elevation: -1.5 m * Maximum Elevation: -1.5 m
Event(s):
Helgoland_L_digitata_culture * Latitude: 54.178250 * Longitude: 7.891972 * Date/Time: 2015-09-11T00:00:00 * Elevation: -1.5 m * Method/Device: Biological sample (BIOS) * Comment: Sample collected by foot
Spitsbergen_L_digitata_culture * Latitude: 78.991583 * Longitude: 12.025861 * Date/Time: 2015-06-10T00:00:00 * Method/Device: Biological sample (BIOS) * Comment: Sample collected by diving
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
13.6 kBytes

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