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Molecular composition characteristics of marine Synechococcus reflect the highly environmental heterogeneity in the shelf seas

文献类型：期刊论文

作者Li, Jialin2; Shi, Feng1,2; Gao, Huiwang1; Qin, Song2
刊名CONTINENTAL SHELF RESEARCH
出版日期2025-09-01
卷号292页码:12
关键词Cyanobacterial Synechococcus Environmental properties High-throughput sequencing Environmental heterogeneity indicator Bohai sea Yellow sea
ISSN号0278-4343
DOI10.1016/j.csr.2025.105495
通讯作者Gao, Huiwang(hwgao@ouc.edu.cn) ; Qin, Song(sqin@yic.ac.cn)
英文摘要Synechococcus, a dominant group of marine photosynthetic picophytoplankton, play a crucial role in primary productivity and carbon cycling within shelf seas. Its distribution patterns are highly sensitive to environmental changes, rendering it a valuable indicator for assessing ecosystem responses to both climate change and anthropogenic pressures. Nonetheless, the relationships between the genetic diversity of Synechococcus and environmental heterogeneity in the Bohai Sea and Yellow Sea have not been thoroughly explored. Here, we employed the high-throughput sequencing method to investigate the phylogenetic and phenogenetic diversity of Synechococcus in the Bohai and Yellow seas, revealing distinct genotype compositions depending on typical habitats. Regarding phylogenetic distribution, both S5.1 clades I and VI dominated in the Bohai Sea with an average proportion of 25.47 % and 26.20 %, respectively; while clades I and II became predominant in the Yellow Sea accounting for 47.72 % and 14.82 %, respectively. Phenogenetically, type 2 dominated in the Bohai Sea occupying 53.15 %; types 3a and 3dA were dominant in the Yellow Sea accounting for 49.51 % and 40.88 %, respectively. Temperature and salinity were identified as key environmental constraints influencing the distribution patterns of Synechococcus. At the sub-group level, clade IX and type 3dA showed distributions closely related to salinity, whereas types 3a were primarily influenced by dissolved oxygen. The findings underscored the significant correlations between the distribution patterns of Synechococcus and environmental properties, which were further supported by cluster results demonstrating similar patterns obtained through principal component analysis. These findings highlight the application potential of spatial niche analysis based on Synechococcus molecular markers in reflecting environmental changes in shelf seas. Future studies should focus on elucidating the molecular regulatory mechanisms governing the distribution patterns of Synechococcus, thereby providing a critical foundation for understanding the responses of keystone species to environmental stresses in shelf ecosystems.
WOS关键词EAST CHINA SEA ; GENETIC DIVERSITY ; COASTAL WATERS ; TEMPORAL VARIATION ; HIGH-RESOLUTION ; SURFACE WATERS ; CLIMATE-CHANGE ; PROCHLOROCOCCUS ; PICOCYANOBACTERIA ; POPULATION
WOS研究方向Oceanography
语种英语
WOS记录号WOS:001507507800001
资助机构National Natural Science Foundation of China ; Key Deployment Project of Centre for Ocean Mega Science, Chinese Academy of Sciences
源URL[http://ir.yic.ac.cn/handle/133337/41127]  
专题海岸带生物学与生物资源利用重点实验室
通讯作者Gao, Huiwang; Qin, Song
作者单位1.Ocean Univ China, Coll Environm Sci & Engn, Qingdao 266100, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Biol Resource Conservat, Yantai 264000, Peoples R China
推荐引用方式
GB/T 7714		 Li, Jialin,Shi, Feng,Gao, Huiwang,et al. Molecular composition characteristics of marine Synechococcus reflect the highly environmental heterogeneity in the shelf seas[J]. CONTINENTAL SHELF RESEARCH,2025,292:12.
APA Li, Jialin,Shi, Feng,Gao, Huiwang,&Qin, Song.(2025).Molecular composition characteristics of marine Synechococcus reflect the highly environmental heterogeneity in the shelf seas.CONTINENTAL SHELF RESEARCH,292,12.
MLA Li, Jialin,et al."Molecular composition characteristics of marine Synechococcus reflect the highly environmental heterogeneity in the shelf seas".CONTINENTAL SHELF RESEARCH 292(2025):12.

入库方式： OAI收割

来源：烟台海岸带研究所

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