Allele frequency data for SNPs on a combined-species SNP array for European seabass and gilthead seabream

SNP arrays are enabling tools for high-resolution studies of the genetic basis of complex traits, and for incorporating genetic markers to expedite genetic gain in selective breeding programmes. The European seabass (Dicentrarchus labrax) and the gilthead seabream (Sparus aurata) are two primary fish species of importance for Mediterranean aquaculture. The aim of our study was to design a combined-species, 60K SNP array for the European seabass and the gilthead seabream, and to test its performance on farmed and wild populations from multiple locations throughout the Mediterranean. The data presented here are part of the validation process of the abovementioned platform and represents the allele frequencies of the SNPs on the array that were genotyped across 23 European seabass and 26 gilthead seabream populations sampled mainly from the Mediterranean Sea. The data comprises two text files, one for each fish species. Each file contains seven tab separated columns that indicate: chromosome/scaffold ID (1st column), position of the SNP (2nd column), SNP ID (3rd column), reference allele (4th column), alternate allele (5th column), the number of individuals successfully genotyped (6th column) and the average allele frequency of the SNP (7th column). The data shows that the majority of the SNPs on the platform are highly polymorphic across the sampled European seabass and gilthead seabream populations. The allele frequency information can be used to generate low-density panels to perform genetic research in both fish species.SNP阵列（SNP array）是用于复杂性状遗传基础高分辨率研究的赋能工具，同时可整合遗传标记以加速选择育种项目中的遗传进展。欧洲海鲈（Dicentrarchus labrax）和金头鲷（Sparus aurata）是地中海水产养殖的两种主要经济鱼类。本研究旨在为这两种鱼类设计一款跨物种的60K SNP阵列，并针对地中海沿岸多个地点的养殖与野生种群测试其性能。 本数据集为上述开发的基因分型平台的验证流程的一部分，涵盖了针对23个欧洲海鲈种群与26个金头鲷种群（主要采样自地中海海域）进行基因分型后得到的阵列上SNP的等位基因频率数据。 数据集包含两个文本文件，分别对应上述两种鱼类。每个文件包含7个制表符分隔的列，依次为：染色体/支架ID（第1列）、SNP位点位置（第2列）、SNP ID（第3列）、参考等位基因（第4列）、替代等位基因（第5列）、成功基因分型的个体数（第6列）以及该SNP的平均等位基因频率（第7列）。 数据显示，该平台上的多数SNP在采样的欧洲海鲈与金头鲷种群中均呈现高度多态性。上述等位基因频率信息可用于构建低密度分型面板，以开展这两种鱼类的相关遗传学研究。