Global, regional, and cryptic population structure in a high gene-flow transatlantic fish
Fig 5
Population graph representing the distribution of genetic covariance in the global lumpfish (Cyclopterus lumpus) population based on 139 SNPs.
Nodes represent samples, and their relative sizes the amount of within-population genetic variance. Edges connecting the nodes represent the pattern of genetic covariance among populations: Dashed lines denote extended edges (i.e., more gene-flow than what would be expected given geographic distance), dotted lines compressed edges, (i.e., less gene-flow than what would be expected given geographic distance), and continuous line proportional edges (i.e., not significantly more or less gene-flow). Colors indicate geographic regions as described in Table 1.