10.5061/DRYAD.D4Q57S5
Woodings, Laura N.
La Trobe University
Murphy, Nicholas P.
La Trobe University
Doyle, Stephen R.
Wellcome Trust
Hall, Nathan E.
La Trobe University
Robinson, Andrew J.
La Trobe University
Liggins, Geoffrey W.
Sydney Institute of Marine Science
Green, Bridget S.
University of Tasmania
Cooke, Ira R.
James Cook University
Bell, James J.
Victoria University of Wellington
Strugnell, Jan M.
La Trobe University
James Cook University
Data from: Outlier SNPs detect weak regional structure against a
background of genetic homogeneity in the Eastern Rock Lobster, Sagmariasus
verreauxi
Dryad
dataset
2018
ddRAD Sequencing
genetic homogeneity
Jasus edwardsii
outlier SNPs
Spiny lobsters
Sagmariasus verreauxi
2018-11-15T17:03:58Z
2018-11-15T17:03:58Z
en
https://doi.org/10.1007/s00227-018-3443-7
1040642 bytes
1
CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Genetic differentiation is characteristically weak in marine species
making assessments of population connectivity and structure difficult.
However the advent of genomic methods have increased genetic resolution,
enabling studies to detect weak, but significant population
differentiation within marine species. With an increasing number of
studies employing high resolution genome-wide techniques, we are realising
the connectivity of marine populations is often complex and quantifying
this complexity can provide an understanding of the processes shaping
marine species genetic structure and to inform long-term, sustainable
management strategies. This study aims to assess the genetic structure,
connectivity and local adaptation of the Eastern Rock Lobster (Sagmariasus
verreauxi), which has a maximum pelagic larval duration of 12 months and
inhabits both subtropical and temperate environments. We used 645 neutral
and 15 outlier SNPs to genotype lobsters collected from the only two known
breeding populations and a third episodic population — encompassing S.
verreauxi’s known range. Through examination of the neutral SNP panel, we
detected genetic homogeneity across the three regions, which extended
across the Tasman Sea encompassing both Australian and New Zealand
populations. We discuss differences in neutral genetic signature of S.
verreauxi and a closely-related, co-distributed rock lobster, Jasus
edwardsii, determining a regional pattern of genetic disparity between the
species, which have largely similar life histories. Examination of the
outlier SNP panel detected weak genetic differentiation between the three
regions. Outlier SNPs showed promise in assigning individuals to their
sampling origin and may prove useful as a management tool for species
exhibiting genetic homogeneity.
Full SNP panel (756 SNPs)756 SNPs that were identified for Sagmariasus
verreauxi in a genpop file format.FullSNPPanel.txtNeutral SNP Panel645
neutral SNPs identified for Sagmariasus verreauxi in a structure file
format.NeutralSNPs.struOutlier SNP Panel15 outlier SNPs identified for
Sagmariasus verreauxi in a structure file format.OutlierSNPs.struMigrate-N
input fileInput file containing 50 loci for Migrate-n analysis between NSW
and NZ.infile.50Loci_NSWvsNZ
New Zealand
New South Wales
Tasmania
Australia