10.5061/DRYAD.94D1S
Saha, Atal
Norwegian Institute of Marine Research
Johansen, Torild
Norwegian Institute of Marine Research
Hedeholm, Rasmus
Grønlands Naturinstitut
Nielsen, Einar E.
Grønlands Naturinstitut
Westgaard, Jon-Ivar
Norwegian Institute of Marine Research
Hauser, Lorenz
University of Washington
Planque, Benjamin
Norwegian Institute of Marine Research
Cadrin, Steven X.
University of Massachusetts Darmouth
Boje, Jesper
Grønlands Naturinstitut
Data from: Geographic extent of introgression in Sebastes mentella and its
effect on genetic population structure
Dryad
dataset
2016
Redfish
oceanic
1992
2012
Hybrid-zone
incipient speciation
Sebastes mentella
2016-08-24T13:56:09Z
2016-08-24T13:56:09Z
en
https://doi.org/10.1111/eva.12429
1909760 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Genetic population structure is often used to identify management units in
exploited species, but the extent of genetic differentiation may be
inflated by geographic variation in the level of hybridization between
species. We identify the genetic population structure of Sebastes mentella
and investigate possible introgression within the genus by analyzing 13
microsatellites in 2,562 redfish specimens sampled throughout the North
Atlantic. The data support an historical divergence between the “shallow”
and “deep” groups, beyond the Irminger Sea where they were described
previously. A third group, “slope,” has an extended distribution on the
East Greenland Shelf, in addition to earlier findings on the Icelandic
slope. Furthermore, S. mentella from the Northeast Arctic and Northwest
Atlantic waters are genetically different populations. In both areas,
interspecific introgression may influence allele frequency differences
among populations. Evidence of introgression was found for almost all the
identified Sebastes gene pools, but to a much lower extent than suggested
earlier. Greenland waters appear to be a sympatric zone for many of the
genetically independent Sebastes groups. This study illustrates that the
identified groups maintain their genetic integrity in this region despite
introgression.
Sebastes_raw_dataData includes two sub-sets: 1. Data used to study genetic
structure of S. mentella (mentella genotypes) and 2. data used for
studying introgression (Sebastes genotypes). Biological data are shown in
subsequent sheets.
Norway
North Atlantic