Genetic Diversity, Community Assembly, and Shaping Factors of Benthic Microbial Eukaryotes in Dongshan Bay, Southeast China.
Genetic Diversity, Community Assembly, and Shaping Factors of Benthic Microbial Eukaryotes in Dongshan Bay, Southeast China.
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中国东南部东山湾底栖微生物真核生物的遗传多样性、群落组装和形成因素。
DOI：
10.3389/fmicb.2020.592489
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发表时间：
2020
影响因子：
5.2
通讯作者：
Xu D
中科院分区：
文献类型：
--
作者：
Gu R;Sun P;Wang Y;Yu F;Jiao N;Xu D
Microbial eukaryotes are pivotal components of marine ecosystems. However, compared with the pelagic environments, the diversity distribution and the driving mechanisms of microbial eukaryotes in the marine sediments have rarely been explored. In this study, sediment cores were collected along a transect from inner to outer Dongshan Bay, Southeast China. By combining high throughput sequencing of small-subunit (SSU) rRNA gene with measurements on multiple environmental variables, the genetic diversity, community structure and assembly processes, and environmental shaping factors were investigated. Alveolata (mainly Ciliophora and Dinophyceae), Rhizaria (mainly Cercozoa), and Stramenopiles (mainly Bacillariophyta) were the most dominant groups in terms of both relative sequence abundance and operational taxonomic unit (OTU) richness. Grain size composition of the sediment was the primary factor determining the alpha diversity of microbial eukaryotes followed by sediment depth and heavy metal, including chromium (Cr), zinc (Zn), and plumbum (Pb). Geographic distance and water depth surpassed other environmental factors to be the primary factors shaping the microbial eukaryotic communities. Dispersal limitation was the primary driver of the microbial eukaryotic communities, followed by drift and homogeneous selection. Overall, our study shed new light on the spatial distribution patterns and controlling factors of benthic microbial eukaryotes in a subtropical bay which is subjected to increasing anthropogenic pressure.
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影响因子：
3
作者：
Buccolieri, A;Buccolieri, G;Maci, A
通讯作者：
Maci, A
影响因子：
5.1
作者：
Countway, Peter D.;Gast, Rebecca J.;Caron, David A.
通讯作者：
Caron, David A.
影响因子：
2.7
作者：
Benjamini, Yoav;Krieger, Abba M.;Yekutieli, Daniel
通讯作者：
Yekutieli, Daniel
DOI：
10.1073/pnas.062169599
发表时间：
2002-06-11
影响因子：
11.1
作者：
Dawson, SC;Pace, NR
通讯作者：
Pace, NR
影响因子：
1.4
作者：
Coats, DW;Adam, EJ;Hedrick, S
通讯作者：
Hedrick, S