RAD-Seq-derived SNPs reveal no local population structure in the commercially important deep-sea queen snapper (Etelis oculatus) in Puerto Rico.

IF 5.3 2区生物学 Q1 MARINE & FRESHWATER BIOLOGY

Marine Life Science & Technology Pub Date : 2025-05-12 eCollection Date: 2025-08-01 DOI:10.1007/s42995-025-00289-7

María Del P González-García, Jorge R García-Sais, Graciela García-Moliner, Nikolaos V Schizas

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Abstract

The queen snapper (Etelis oculatus Valenciennes in Cuvier & Valenciennes, 1828) is a deep-sea snapper whose commercial importance continues to increase in the US Caribbean. However, little is known about the biology and ecology of this species. In this study, the presence of a fine-scale population structure and genetic diversity of queen snapper from Puerto Rico was assessed through 16,188 SNPs derived from the Restriction site Associated DNA Sequencing (RAD-Seq) technique. Summary statistics estimated low genetic diversity (HO = 0.333-0.264) and did not reveal population differentiation within our samples (F _ST = - 0.001-0.025). Principal component analysis and a model-based clustering method did not detect a fine-scale subpopulation structure among sampling sites, however, there was genetic variability within regions and sites. Our results have revealed comparable genetic and dispersal patterns to those observed in other shallow-water snapper species in Puerto Rico waters. It is crucial to further enhance our understanding of the ecological and biological aspect of the queen snapper to effectively manage and conserve this species as fishing pressure has been extended to deep water species in the US Caribbean.

Supplementary information: The online version contains supplementary material available at 10.1007/s42995-025-00289-7.

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rad - seq衍生的snp在波多黎各具有重要商业价值的深海鲷鱼（Etelis oculatus）中没有发现当地的种群结构。

皇后鲷鱼（Etelis oculatus Valenciennes in Cuvier & Valenciennes, 1828）是一种深海鲷鱼，其商业重要性在美国加勒比海地区不断增加。然而，人们对该物种的生物学和生态学知之甚少。在这项研究中，通过限制性内切位点相关DNA测序（RAD-Seq）技术获得的16,188个snp，对波多黎各鲷鱼皇后的精细群体结构和遗传多样性进行了评估。汇总统计估计遗传多样性较低（HO = 0.333-0.264），并且未显示样本内的群体分化（F ST = - 0.001-0.025）。主成分分析和基于模型的聚类方法没有检测到采样点之间的精细亚种群结构，但区域和站点之间存在遗传变异。我们的研究结果揭示了在波多黎各水域其他浅水鲷鱼物种中观察到的可比较的遗传和扩散模式。随着捕捞压力扩大到美国加勒比海的深水物种，进一步加强我们对女王鲷鱼的生态和生物学方面的了解对于有效管理和保护该物种至关重要。补充信息：在线版本包含补充资料，可在10.1007/s42995-025-00289-7获得。

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来源期刊

Marine Life Science & Technology MARINE & FRESHWATER BIOLOGY-

CiteScore

9.60

自引率

10.50%

发文量

期刊介绍： Marine Life Science & Technology (MLST), established in 2019, is dedicated to publishing original research papers that unveil new discoveries and theories spanning a wide spectrum of life sciences and technologies. This includes fundamental biology, fisheries science and technology, medicinal bioresources, food science, biotechnology, ecology, and environmental biology, with a particular focus on marine habitats. The journal is committed to nurturing synergistic interactions among these diverse disciplines, striving to advance multidisciplinary approaches within the scientific field. It caters to a readership comprising biological scientists, aquaculture researchers, marine technologists, biological oceanographers, and ecologists.