中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 海洋研究所
  3. 中国科学院海洋研究所
  4. 海洋生态与环境科学重点实验室
Genetic diversity of Aureococcus anophagefferens in the coastal waters of China and implications for intraspecific differentiation of environmental adaptability

文献类型：期刊论文

作者Liu, Chao1,3,4; Zhang, Qingchun1,2,4; Chen, Zhenfan1,2,4; Sun, Lu1,3,4; Kong, Fanzhou1,2,4; Yu, Rencheng1,2,3,4
刊名HARMFUL ALGAE
出版日期2025-12-01
卷号150页码:12
关键词Aureococcus anophagefferens Brown tide Genetic diversity Mitochondrial marker Intraspecific differentiation Environmental adaptation
ISSN号1568-9883
DOI10.1016/j.hal.2025.102985
通讯作者Zhang, Qingchun(qczhang@qdio.ac.cn)
英文摘要Aureococcus anophagefferens, a globally distributed picoplankton species, plays a critical role as a primary producer in marine ecosystems, and is responsible for brown tides in coastal waters, which significantly impact local environments and shellfisheries. Despite its pronounced adaptability across diverse marine habitats-from open oceans to estuaries-the genetic diversity underlying its niche differentiation remains poorly understood. This study investigated the intraspecific genetic diversity of A. anophagefferens in China's coastal waters and the western Pacific, employing a novel mitochondrial marker (trnD-dam1) to resolve fine-scale population structure. Three distinct genotypes were identified, each exhibiting distinct environmental preferences: Type I dominated brown tide blooms in eutrophic, warm, low-salinity estuaries in the Bohai and Yellow Seas, correlating strongly with elevated dissolved organic nitrogen. In contrast, Types II (prevalent in U.S. strains) and III prevailed in high-salinity habitats, and associated with coastal zones influenced by transoceanic currents. Spatial-temporal analyses revealed genotype succession during bloom dynamics, with Type I constituting over 80 % of the population during peak bloom phases and coexisting with Type II during non-bloom periods. Samples from the Kuroshio Current exclusively harbored Types II and III, suggesting that oceanographic transport facilitates their dispersal. These findings indicate that A. anophagefferens populations have undergone adaptive divergence to exploit local environmental gradients, with genotype-specific preferences for temperature, salinity, and nutrient regimes shaping their biogeographic distribution.
WOS关键词BROWN TIDE BLOOMS ; ALGAL BLOOMS ; SEA ; MITOCHONDRIAL ; QINHUANGDAO ; AUREOUMBRA ; DNA ; ASSIMILATION ; MECHANISMS ; EVOLUTION
资助项目National Key Research and Development Program of China[2022YFC3105200] ; National Key Research and Development Program of China[2023YFE0106200] ; National Natural Science Foundation of China[U22A20583] ; National Natural Science Foundation of China[NORC2018-09] ; National Natural Science Foundation of China[NORC2021-01] ; National Natural Science Foundation of China[NORC2021-02] ; National Natural Science Foundation of China[NORC2021-03] ; National Natural Science Foundation of China[NORC2021-301]
WOS研究方向Marine & Freshwater Biology
语种英语
WOS记录号WOS:001583550000002
出版者ELSEVIER
源URL[http://ir.qdio.ac.cn/handle/337002/203503]  
专题海洋研究所_海洋生态与环境科学重点实验室
通讯作者Zhang, Qingchun
作者单位1.Chinese Acad Sci, Inst Oceanol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
2.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Chao,Zhang, Qingchun,Chen, Zhenfan,et al. Genetic diversity of Aureococcus anophagefferens in the coastal waters of China and implications for intraspecific differentiation of environmental adaptability[J]. HARMFUL ALGAE,2025,150:12.
APA Liu, Chao,Zhang, Qingchun,Chen, Zhenfan,Sun, Lu,Kong, Fanzhou,&Yu, Rencheng.(2025).Genetic diversity of Aureococcus anophagefferens in the coastal waters of China and implications for intraspecific differentiation of environmental adaptability.HARMFUL ALGAE,150,12.
MLA Liu, Chao,et al."Genetic diversity of Aureococcus anophagefferens in the coastal waters of China and implications for intraspecific differentiation of environmental adaptability".HARMFUL ALGAE 150(2025):12.

入库方式： OAI收割

来源：海洋研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。