Dynamic genetic features of eukaryotic plankton diversity in the Nakdong River estuary of Korea

作     者：LEE Jee Eun CHUNG Ik Kyo LEE Sang-Rae 

作者机构：Division of Earth Environmental System Oceanography MajorPusan National University Marine Research InstitutePusan National University 

出 版 物：《Chinese Journal of Oceanology and Limnology》 (中国海洋湖沼学报（英文版）)

年 卷 期：2017年第35卷第4期

页      面：844-857页

核心收录：

学科分类：0710[理学-生物学] 0908[农学-水产] 07[理学] 0707[理学-海洋科学] 08[工学] 09[农学] 0815[工学-水利工程] 071007[理学-遗传学] 071004[理学-水生生物学] 0901[农学-作物学] 0836[工学-生物工程] 090102[农学-作物遗传育种] 

基　　金：Supported by the East Asian Seas Time Series-I(No.EAST-I) the Ministry of Oceans and Fisheries,Korea,the"Development of Microbial Metagenomic Techniques for a Fine-Scale Seawater Mass Analysis"through the Ministry of Education of the Republic of Korea the National Research Foundation of Korea(No.NRF-2013R1A1A2006915) 

主　　题：18S rDNA clone library metagenome estuary salinity gradient 

摘      要：Estuaries are environments where freshwater and seawater mix and they display various salinity *** construction of river barrages and dams has rapidly changed these environments and has had a wide range of impacts on plankton *** understand the dynamics of such communities,researchers need accurate and rapid techniques for detecting plankton *** evaluated the diversity of eukaryotic plankton over a salinity gradient by applying a metagenomics tool at the Nakdong River estuary in *** samples were collected on three dates during summer and autumn of 2011 at the Eulsukdo Bridge at the mouth of that *** the 18 S rDNA allowed us to analyze 456 clones and 122 *** sequences revealed various taxonomic groups and cryptic genetic variations at the intra-and inter-specific *** analyzing the same station at each sampling date,we observed that the phylotypes presented a salinity-related pattern of diversity in *** variety of species within freshwater samples reflected the rapid environmental changes caused by freshwater *** phylotypes accounted for the highest proportion of overall diversity in the seawater *** diatoms and dinoflagellates were observed in the freshwater,brackish and seawater *** biological data for species composition demonstrate the transitional state between freshwater and ***,this metagenomics information can serve as a biological indicator for tracking changes in aquatic environments.