Comparative study of the composition and genetic diversity of the picoeukaryote community in a Chinese aquaculture area and an open sea area

Xue Song, Zhimeng Xu, Qian Liu, Yan Li, Yu Ma, Jian Wang, Mengran Sun, Hongbing Shao, Hui Sun, Gillian Malin, Yong Jiang, Min Wang

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Abstract

Picoeukaryotes (<2–3 μm) perform key roles for the functioning of marine ecosystems, but little is known regarding the composition and diversity of picoeukaryotes in aquaculture areas. In this study, the Illumina MiSeq platform was used for sequencing the V4 variable region within the 18S rDNA gene to analyse genetic diversity and relative abundance of picoeukaryotic communities in the Qinhuangdao scallop cultivation area of the Bohai Sea. The community was dominated by three super groups, the alveolates (54%), stramenopiles (41%) and chlorophytes (3%), and three groups, dinoflagellates (54%), pelagomonadales (40%) and prasinophytes (3%). Furthermore, a contrasting station with open water away from the eutrophic aquaculture area was chosen. The communities collected from the two stations exhibited significant differences, with higher diversity in the aquaculture area. These results provide the first snapshot of the picoeukaryotic diversity in surface waters of the Qinhuangdao scallop cultivation area, and basic data for future studies on picoeukaryote community in an aquaculture region.
Original languageEnglish
Pages (from-to)151-159
JournalJournal of the Marine Biological Association of the United Kingdom
Volume97
Issue number1
Early online date1 Mar 2016
DOIs
Publication statusPublished - Feb 2017

Keywords

  • environmental heterogeneity
  • genetic diversity
  • picoeukaryotes
  • MiSeq
  • 18S rDNA

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