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热带海洋学报

• • 上一篇    

湛江海域5种江蓠属物种(江蓠科,红藻门)的形态与分子鉴定研究

李能辉1, 2, 3, 吕正文1, 2, 3, 蔡红艳2, 李航2, 曾俊2, 何海萍2, 朱宇珍1, 2, 3, 4, 吴科锋1, 3, 4, 赵卫5, 谭华强2, 4, 罗辉1, 3, 4   

  1. 1广东医科大学海洋与热带医学学院, 广东 湛江 524023;

    2. 南方海洋科学与工程广东省实验室(湛江), 广东 湛江 524002;

    3. 广东湛江海洋医药研究院, 广东 湛江 524023;

    4. 湛江市海洋藻类高值化利用工程技术研究中心, 广东 湛江 524023;

    5. 南方医科大学公共卫生学院广东省热带病研究重点实验室, 广东 广州 510515

  • 收稿日期:2025-02-18 修回日期:2025-04-22 接受日期:2025-04-27
  • 通讯作者: 罗辉
  • 基金资助:

    南方海洋科学与工程广东省实验室(湛江)项目(ZJW-2023-12); 湛江市海洋青年人才创新项目(2023E0008); 广东省现代化海洋牧场适养品种核心技术攻关项目(2024-MRB-00-001); 广东医科大学“冲补强”专项(4SG23009G, 4SG22264G); 湛江市科技计划专项(2022A01207)

Morphological and molecular identification of five Gracilaria species (Gracilariaceae, Rhodophyta) in the Zhanjiang sea area

LI Nenghui1, 2, 3, LYV Zhengwen1, 2, 3, CAI Hongyan2, LI Hang2, ZENG Jun2, HE Haiping2, ZHU Yuzhen1, 2, 3, 4, WU Kefeng1, 3, 4, ZHAO Wei5, TAN Huaqiang2, 4, LUO Hui1, 3, 4   

  1. 1. School of Ocean and Tropical Medicine, Guangdong Medical University, Zhanjiang 524023, China;

    2. Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang), Zhanjiang 524002, China;

    3. Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang 524023, China;

    4. Zhanjiang Engineering Research Center for Algae High-value Utilization, Zhanjiang 524023, China;

    5. Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China

  • Received:2025-02-18 Revised:2025-04-22 Accepted:2025-04-27
  • Supported by:

    Southern Marine Science and Engineering Guangdong Laboratory (Zhanjiang) Project, China (ZJW-2023-12); Zhanjiang Marine Youth Talent Innovation Program, China (2023E0008); Core Technology Research Project for Suitable Species of Modern Marine Ranch in Guangdong Province, China (2024-MRB-00-001); Discipline Construction Project of Guangdong Medical University, China (4SG23009G, 4SG22264G); Special Science and Technology Innovation Project of Guangdong Province, China (2022A01207)

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摘要： 湛江地处我国南海海域, 海藻资源丰富, 但有关江蓠属物种多样性的研究较为稀缺。为了明确该地区江蓠属物种多样性及其系统发育关系, 本研究通过形态学、解剖学和分子分析方法, 对湛江海域潮间带大型海藻资源进行了分类学研究。结果表明, 共鉴定出5个物种, 分别为海南江蓠Gracilaria hainanensis、缢江蓠G. salicornia、刺边江蓠G. spinulosa以及两个未定种Gracilaria sp.。文章详细讨论了这5个江蓠物种的分类学现状, 并提供了详细且丰富的解剖学特征图片和分子序列数据。该研究不仅丰富了湛江海域江蓠属物种的多样性, 也为该地区海藻资源的开发与生物多样性保护提供了科学依据。

关键词: 江蓠科, 系统发育分析, rbcL, 多样性, 隐存种

Abstract: Zhanjiang is located in the South China Sea and is rich in seaweed resources, but studies on the species diversity of the genus Gracilaria are scarce. To clarify the diversity of Gracilaria species and their phylogenetic relationships in this region, this study was conducted to taxonomically investigate the intertidal macroalgae resources in Zhanjiang waters through morphological, anatomical and molecular analyses. The results showed that five species were identified, namely Gracilaria hainanensis, G. salicornia, G. spinulosa, and two undescribed species (Gracilaria sp.). The taxonomic status of these five Gracilaria species is discussed in detail, and detailed and rich anatomical characterization images and molecular sequence data are provided. This study not only enriches the diversity of Gracilaria species in the Zhanjiang Sea, but also provides a scientific basis for the development of seaweed resources and biodiversity conservation in the region.

Key words: Gracilariaceae, phylogenetic analysis, rbcL, diversity, cryptic species