Development of SNP for the deep-sea fish blue ling, Molva dypterygia (Pennant, 1784) from ddRAD sequencing data

Blue ling is a deep-water species that has been severely fished upon into coastal and offshore fisheries since the early 1970s, thus causing the collapse of the populations in the last two decades. Genetic information is scarce in this species, and molecular markers are therefore needed to provide advice both for management and for rebuilding the stocks. A suite of 103 SNP markers was identified from ddRAD sequencing data. From those, 81 were organized in three multiplex reactions, and tested on 150 individuals from three different sampling locations. Good-quality amplification products were successfully obtained from 70 of the markers. All SNP loci were biallelic, with averaged He per locus ranging between 0.101 and 0.500.