10.5061/DRYAD.438H3
Mathiesen, Sofie Smedegaard
Technical University of Denmark
Thyrring, Jakob
Aarhus University
Hemmer-Hansen, Jakob
Technical University of Denmark
Berge, Jørgen
The Arctic University of Norway
University Centre in Svalbard
Sukhotin, Alexey
Russian Academy of Sciences
Leopold, Peter
The Arctic University of Norway
Bekaert, Michaël
University of Stirling
Sejr, Mikael Kristian
Aarhus University
Nielsen, Einar E.
Technical University of Denmark
Data from: Genetic diversity and connectivity within Mytilus spp. in the
subarctic and Arctic
Dryad
dataset
2016
glacial refugium
Mytilus edulis
SNPs
Mytilus trossulus
Arctic fauna
2016-08-15T15:16:09Z
2016-08-15T15:16:09Z
en
https://doi.org/10.1111/eva.12415
5034240 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Climate changes in the Arctic are predicted to alter distributions of
marine species. However, such changes are difficult to quantify because
information on present species distribution and the genetic variation
within species is lacking or poorly examined. Blue mussels, Mytilus spp.
are ecosystem engineers in the coastal zone globally. In order to improve
knowledge of distribution and genetic structure of the Mytilus edulis
complex in the Arctic, we analyzed 81 SNPs in 534 Mytilus spp. individuals
sampled at 13 sites to provide baseline data for distribution and genetic
variation of Mytilus mussels in the European Arctic. Mytilus edulis was
the most abundant species found with a clear genetic split between
populations in Greenland and the Eastern Atlantic. Surprisingly, analyses
revealed the presence of M. trossulus in high Arctic NW Greenland (77°N)
and M. galloprovincialis or their hybrids in SW Greenland, Svalbard and
the Pechora Sea. Furthermore, a high degree of hybridization and
introgression between species was observed. Our study highlights the
importance of distinguishing between congener species, which can display
local adaptation and suggests that information on dispersal routes and
barriers are essential for accurate predictions of regional susceptibility
to range expansions or invasions of boreal species in the Arctic.
Description of the SNP platesInformation sheet containing the description
of which individuals were included in plates 2-7Fluidigm plates.xlsxPlate
no 2Raw data from SNP plate no 2Plate_02.csvPlate no 3Raw data from SNP
plate no 3Plate_03.csvPlate no 4Raw data from SNP plate no
4Plate_04.csvPlate no 5Raw data from SNP plate no 5Plate_05.csvPlate no
6Raw data from SNP plate no 6Plate_06.csvPlate no 7Raw data from SNP plate
no 7Plate_07.csv
White Sea
Norway
Svalbard
Arctic
Greenland
Iceland
Russia