Genetic structure of the French grunt Haemulon flavolineatum, population was determined in four localities, two located in the Campeche Bank (Cayo Arcas and Alacranes) and two in the Mexican Caribbean (Puerto Morelos and Banco Chinchorro) using microsatellite loci. Intra- and inter-population genetic variabilities, and genetic distances were evaluated. The Monmonier’s maximum-difference algorithm was used to identify population structure and the putative genetic barriers across the oceanographic landscape. Overall expected heterozygosity (He) was lower (0.81) than the observed heterozygosity (Ho = 0.85). Inbreeding index indicated an excess of heterozygotes occur within the whole study area (F${}_{\mathrm{IS}}$ = -0.039); while fixation index denoted genetic significant differences between localities (F${}_{\mathrm{ST}}$ = 0.033). Nei’s genetic distances were wider between Puerto Morelos and Alacranes (0.232), while the narrower were observed between Alacranes and Cayo Arcas (0.106). Monmonier’s algorithm revealed three putative barriers: the first one separated the Campeche Bank from the Caribbean, the second one separated Puerto Morelos from Chinchorro, and finally the third one separated Cayo Arcas from Alacranes. Regional currents allow dispersion of H. flavolineatum between distant populations of the Mesoamerican Barrier Reef and the Gulf of Mexico, but they are not enough to homogenize the populations to form a panmictic population.

使用微卫星基因座在四个地点确定了法国咕unt蛋黄蜂的遗传结构，其中两个地点位于坎佩切河岸（卡约阿卡斯和阿拉克兰斯），两个位于墨西哥加勒比海地区（波多黎各莫雷洛斯州和钦科罗河）。人口内和人口之间的遗传变异性和遗传距离进行了评估。Monmonier的最大差异算法用于确定整个海洋景观的种群结构和推定的遗传壁垒。总体预期杂合度（He）低于观察到的杂合度（Ho = 0.85）（0.81 ）。近交指数表明在整个研究区域内发生了过多的杂合子（F${}_{\mathrm{是}}$= -0.039）；固着指数表明地点之间的遗传差异显着（F${}_{\mathrm{英石}}$= 0.033）。Nei的遗传距离在莫雷洛斯港和Alacranes之间较宽（0.232），而在Alacranes和Cayo Arcas之间则较窄（0.106）。Monmonier的算法揭示了三个假定的障碍：第一个将坎佩切河岸与加勒比分开，第二个将莫雷洛斯港与Chinchorro分开，最后第三个将Cayo Arcas与Alacranes分开。区域性洋流允许黄花血统在中美洲重堡礁和墨西哥湾的远距离种群之间分散，但不足以使种群均质化以形成恐慌种群。