10.5061/DRYAD.3N5TB2RDD
Seljestad, Gaute
0000-0003-2169-5027
Norwegian Institute of Marine Research
Quintela, Maria
Norwegian Institute of Marine Research
Faust, Ellika
University of Gothenburg
Halvorsen, Kim
Norwegian Institute of Marine Research
Besnier, Francois
Norwegian Institute of Marine Research
Jansson, Eeva
Norwegian Institute of Marine Research
Dahle, Geir
Norwegian Institute of Marine Research
Knutsen, Halvor
Norwegian Institute of Marine Research
Andre, Carl
University of Gothenburg
Folkvord, Arild
University of Bergen
Glover, Kevin
Norwegian Institute of Marine Research
Data from: “A cleaner break”: genetic divergence between geographic groups
and sympatric phenotypes revealed in ballan wrasse (Labrus bergylta)
Dryad
dataset
2020
Cleaner fish
Labrus bergylta
2021-05-06T00:00:00Z
2020-06-24T00:00:00Z
en
https://doi.org/10.1002/ece3.6404
288634 bytes
5
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Capture and long-distance translocation of cleaner fish to control lice
infestations on marine salmonid farms has the potential to influence wild
populations via overexploitation in source regions, and introgression in
recipient regions. Knowledge of population genetic structure is therefore
required. We studied the genetics of ballan wrasse, a phenotypically
diverse and extensively used cleaner fish, from 18 locations in Norway and
Sweden, and from Galicia, Spain. We detected two very distinct genetic
groups in Scandinavia, northwest and southeast. These groups were split by
a stretch of sandy beaches in southwest Norway, representing a habitat
discontinuity for this rocky shore associated benthic egg laying species.
The Galician sample was highly differentiated from all Scandinavian
samples, but overall closer to northwestern samples. . Distinct genetic
differences were observed between sympatric spotty and plain phenotypes in
Galicia, but not in Scandinavia. The mechanisms underlying the
geographical patterns between phenotypes are discussed, but not
identified. We conclude that extensive aquaculture-mediated translocation
of ballan wrasse from Sweden and southern Norway, to western and middle
Norway, has the potential to mix genetically distinct populations. These
results question the sustainability of the current cleaner fish practice.
Genotype results for Scandinavian and Galician ballan wrasse (Labrus
bergylta) genotyped for panel of 82 randomly selected SNPs. The dataset
was the basis for population structure analysis and subsequent comparison
between sampling locations in Scandinavia and Galicia, Spain, as well as
between a subset of phenotype sorted samples from some Scandinavian
locations and from Galicia. Dataset resulting from SNP genotyping on an
Agena iPlex Platform, called in TyperAnalyzer