The structure of the black grouper (Mycteroperca bonaci) population from the northern coast of the Yucatan Peninsula was analyzed by means of genetic similarities among three separated (155–250 km) locations: Celestun, Dzilam, and Alacranes Reef. A total of 150 specimens were genetically characterized by means of five microsatellite DNA markers of the genome of this species amplified by PCR specific loci. Microsatellite amplicons were analyzed for each locality with subsequent genotyping in polyacrylamide gels. Results indicated three genetically distinct subpopulations (Celestun, Dzilam, and Alacranes Reef) that deviated significantly from Hardy–Weinberg equilibrium, and genetic differences were evidenced by the AMOVA, the pairwise genetic distance analyses, the Bayesian clustering analysis and the Principal Coordinate Analysis (PCoA). Thus, the analyzed samples do not belong to a black grouper panmictic population; instead they might represent a structured population along the northern coast of the Yucatan Peninsula that maybe caused by oceanographic-driven low levels of larval dispersal and gene flow between regions.

黑色石斑鱼的结构（Mycteroperca bonaci）通过三个分离的地点（155-250公里）Celestun，Dzilam和Alacranes Reef之间的遗传相似性，对尤卡坦半岛北部海岸的种群进行了分析。通过PCR特异性基因座扩增的该物种基因组的五个微卫星DNA标记，对总共150个标本进行了遗传鉴定。对微卫星扩增子的每个位置进行分析，然后在聚丙烯酰胺凝胶中进行基因分型。结果表明，三个遗传上明显不同的亚群（Celestun，Dzilam和Alacranes Reef）明显偏离Hardy-Weinberg平衡，并且遗传差异由A​​MOVA，成对的遗传距离分析，贝叶斯聚类分析和主坐标分析（PCoA）证明。 ）。从而，所分析的样品不属于黑石斑鱼恐慌种群；相反，它们可能代表了尤卡坦半岛北部海岸的结构化种群，这可能是由海洋学驱动的幼虫扩散水平低和区域之间的基因流引起的。