Replication Data for: Going with the flow - population genetics of the kelp Saccharina latissima (Phaeophyceae, Laminariales) in Norway

The dataset contains individual diploid genotypes for 11 microsatellite markers screened in 21 population samples of the seaweed Saccharina latissima along the coast of Norway between August 2016 and June 2018. The data is associated with the article: Ribeiro PA, Næss, T, Dahle G, Asplin L, Meland K, Fredriksen S, Sjøtun K (2022). Going with the flow – population genetics of the kelp Saccharina latissima (Phaeophyceae, Laminariales) in Norway. Frontiers in Marine Science (submitted for review). Article abstract: Saccharina latissima is the most important habitat-forming kelp in sheltered areas of North-Atlantic, and there is also an increasing interest in cultivation and utilization of S. latissima. The cultivation activity may introduce a risk of “crop-to-wild” gene flow from the cultivated crops to natural populations. A baseline study to examine genetic structure and gene flow in S. latissima along the Norwegian coast was therefore done. Microsatellite analyses was carried out on samples from 21 stations, where 12 were in the coastal area from outer Oslofjord in the south to Porsanger in North-Norway, and 9 in the two longest fjords of Norway, Hardangerfjord and Sognefjord. In addition, a hydrographical model was applied, simulating the direction and potential rate of spore dispersal along the coast during the main period of spore release. The results showed a clear isolation by distance pattern along the coast, good connectivity and little genetic structure, except for a reduced connectivity between South- and North-Norway, probably due to the Lofoten archipelago representing a partial barrier for the northward dispersal of spores. In addition, indications of reduced connectivity between coastal stations and the innermost fjord stations were found. Analysing the material with and without one locus potentially under positive selection suggests some degree of genetic adaptation of sugar kelp populations in the Skagerrak area and in the two fjords. The results suggest that genetic connectivity between populations on the coast is strongly influenced by the Norwegian Coastal current.

本数据集收录了2016年8月至2018年6月期间，在挪威沿海地区对海带（Saccharina latissima）21个种群样本中的11个微卫星标记的单倍型进行筛选得到的个体二倍体基因型。数据与以下文献相关：Ribeiro PA, Næss, T, Dahle G, Asplin L, Meland K, Fredriksen S, Sjøtun K (2022). 随波逐流——挪威海域海带（Saccharina latissima, Phaeophyceae, Laminariales）的种群遗传学。海洋科学前沿（已提交审稿）。文章摘要：海带（Saccharina latissima）是北大西洋北部海域中最重要的造礁大型海藻，对海带进行栽培与利用的兴趣日益增加。栽培活动可能引入从栽培品种到自然种群的“作物到野生”基因流的潜在风险。因此，本项研究旨在通过分析挪威沿海地区海带种群中的遗传结构和基因流，构建一项基础研究。在21个站点进行的微卫星分析中，其中12个位于从奥斯陆峡湾南部的外围到北挪威的波森地区沿海区域，另有9个位于挪威最长的两个峡湾——哈当厄峡湾和松恩峡湾。此外，应用水文模型模拟了在孢子释放主要期间沿海地区孢子传播的方向和潜在速率。结果显示，沿海地区呈现出明显的距离隔离模式，连通性良好且遗传结构微弱，除南北挪威之间连通性降低外，可能由于洛夫特群岛对孢子向北传播的部分阻碍作用。此外，还发现沿海站点与最内峡湾站点之间连通性降低的迹象。对可能处于正向选择下的一个位点进行分析，以及未分析该位点的情况，表明斯卡格拉克地区和两个峡湾中的海带种群存在一定程度的遗传适应性。结果表明，沿海种群间的遗传连通性受到挪威沿海流的影响极大。