Data from: Identifying patterns of dispersal, connectivity, and selection in the sea scallop, Placopecten magellanicus, using RAD-seq derived SNPs

View this record at source repository
Description:
Understanding patterns of dispersal and connectivity among marine populations can directly inform fisheries conservation and management. Advances in high-throughput sequencing offer new opportunities for estimating marine connectivity. We used Restriction-site Associated DNA sequencing to examine dispersal and realized connectivity in the sea scallop Placopecten magellanicus, an economically important marine bivalve. Based on 245 individuals sampled range-wide at 12 locations from Newfoundland to the Mid-Atlantic Bight we identified and genotyped 7163 Single Nucleotide Polymorphisms; 112 (1.6%) were identified as outliers potentially under directional selection. Bayesian clustering revealed a discontinuity between northern and southern samples and latitudinal clines in allele frequencies were observed in 42.9% of the outlier loci and in 24.6% of neutral loci. Dispersal estimates derived using these clines and estimates of linkage disequilibrium imply limited dispersal; 373.1 ± 407.0 km (mean ± SD) for outlier loci and 641.0 ± 544.6 km (mean ± SD) for neutral loci. Our analysis suggests restricted dispersal compared to the species range (>2000 km) and that dispersal and effective connectivity differ. These observations support the hypothesis that limited effective dispersal structures scallop populations along eastern North America. These findings can help refine the appropriate scale of management and conservation in this commercially valuable species.

Usage Notes:

VanWyngaardenM_etal_GeogDistMatrix

This file contains matrices of pairwise geographic distances (km; shortest distance and estimated ocean current-based distance) between 12 populations of the sea scallop, Placopecten magellanicus, used along with 7163 RAD-seq derived SNPs to estimate isolation-by-distance and dispersal distances among populations. Population names and geographic coordinates can be found in Table 1 of the associated publication.
VanWyngaardenM_etal_PopStructure_GeogDist.xlsx

VanWyngaardenM_etal_RADseq_SNPs

This VCF file contains 7216 RAD-seq derived SNPs detected among 12 Northwest Atlantic Ocean populations of the sea scallop, Placopecten magellanicus. The program stacks v0.9999 was used to call variants; parameters can be found in Table S1 of the associated publication.
VanWyngaardenM_etal_PopStructure_SNPMap4b.vcf
Author(s):
Van Wyngaarden, Mallory

Van Wyngaarden, Mallory

Memorial University of Newfoundland
, Snelgrove, Paul V.R.

Snelgrove, Paul V.R.

Memorial University of Newfoundland
, DiBacco, Claudio

DiBacco, Claudio

Bedford Institute of Oceanography
, Hamilton, Lorraine C.

Hamilton, Lorraine C.

Bedford Institute of Oceanography
, Rodríguez-Ezpeleta, Naiara

Rodríguez-Ezpeleta, Naiara

Marine Research Division; AZTI Technalia; Sukarrieta Bizkaia Spain
, Jeffery, Nicholas W.

Jeffery, Nicholas W.

Fisheries and Oceans Canada
, Stanley, Ryan R.

Stanley, Ryan R.

Memorial University of Newfoundland
, Bradbury, Ian R.

Bradbury, Ian R.

Memorial University of Newfoundland
, Stanley, Ryan R. E.

Stanley, Ryan R. E.

Dalhousie University
, and Snelgrove, Paul V. R.

Snelgrove, Paul V. R.

Memorial University of Newfoundland
Source Repository:
Dryad
Publisher(s):
Dryad
Access:
Public
URL:
http://datadryad.org/stash/dataset/doi:10.5061/dryad.2nh23
Publication date:
2016-08-29
Keywords:
single nucleotide polymorphism, outlier loci, Placopecten magellanicus, and sea scallop
Identifier:
https://doi.org/10.5061/dryad.2nh23

Geospatial information

There is no geographic information available for this record.
Select geospatial feature(s) to view on map:
View this record at source repository
Note: Up to 1000 features for each file are displayed

Citation

APA Citation:
Van Wyngaarden, M., Snelgrove, P. V. R., DiBacco, C., Hamilton, L. C., Rodríguez-Ezpeleta, N., Jeffery, N. W., Stanley, R. R., Bradbury, I. R., Stanley, R. R. E., & Snelgrove, P. V. R. (2016). Data from: Identifying patterns of dispersal, connectivity, and selection in the sea scallop, Placopecten magellanicus, using RAD-seq derived SNPs [Data set]. Dryad. http://datadryad.org/stash/dataset/doi:10.5061/dryad.2nh23
Citation copied to clipboard
Export to citation manager: