您好,欢迎访问浙江省农业科学院 机构知识库!

Metagenomic insights into the abundance and composition of resistance genes in aquatic environments: Influence of stratification and geography

文献类型: 外文期刊

作者: Yang, Yuyi 1 ; Li, Zan 3 ; Song, Wenjuan 4 ; Du, Linna 5 ; Ye, Chen 1 ; Zhao, Bo 6 ; Liu, Wenzhi 1 ; Deng, Danli 1 ; Pan, Yo 1 ;

作者机构: 1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Hubei, Peoples R China

2.Univ Dundee, Sch Life Sci, Dundee DD1 5EH, Scotland

3.Ludong Univ, Sch Agr, Yantai 264025, Peoples R China

4.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China

5.Wenzhou Vocat Coll Sci & Technol, Dept Agr & Biotechnol, Wenzhou 325006, Peoples R China

6.Northeast Elect Power Univ, Sch Automat Engn, Jilin 132012, Jilin, Peoples R China

7.Univ Chinese Acad Sci, Coll Life Sci, Beijing 100049, Peoples R China

8.Zhejiang Acad Agr Sci, Inst Environm Resources & Soil Fertilizers, Hangzhou 310021, Zhejiang, Peoples R China

9.Jianghan Univ, Sch Life Sci, Wuhan 430056, Hubei, Peoples R China

关键词: Metagenomic analysis; Bacitracin resistance genes; Mercury resistance genes; Stratification; Principal coordinates analysis

期刊名称:ENVIRONMENT INTERNATIONAL ( 影响因子:9.621; 五年影响因子:10.72 )

ISSN: 0160-4120

年卷期: 2019 年 127 卷

页码:

收录情况: SCI

摘要: A global survey was performed with 122 aquatic metagenomic DNA datasets (92 lake water and 30 seawater) obtained from the Sequence Read Archive (SRA). Antibiotic resistance genes (ARGs) and metal resistance genes (MRGs) were derived from the dataset sequences via bioinformatic analysis. The relative abundances of ARGs and MRGs in lake samples were in the ranges ND (not detected)-1.34x10(0) and 1.22x10(-3) -1.98x10(-1) copies per 16S rRNA, which were higher than those in seawater samples. Among ARGs, multidrug resistance genes and bacitracin resistance genes had high relative abundances in both lake and sea water samples. Multimetal resistance genes, mercury resistance genes and copper resistance genes had the greatest relative abundance for MRGs. No significant difference was found between epilimnion and hypolimnion in abundance or the Shannon diversity index for ARGs and MRGs. Principal coordinates analysis and permutational multivariate analysis of variance (PERMANOVA) test showed that stratification and geography had significant influence on the composition of ARGs and MRGs in lakes (p < 0.05, PERMANOVA). Coastal seawater samples had significantly greater relative abundance and a higher Shannon index for both ARGs and MRGs than deep ocean and Antarctic seawater samples (p < 0.05, Kruskal-Wallis one-way ANOVA), suggesting that human activity may exert more selective pressure on ARGs and MRGs in coastal areas than those in deep ocean and Antarctic seawater.

  • 相关文献
作者其他论文 更多>>