Sampling cores and sequencing depths affected the measurement of microbial diversity in soil quadrats
文献类型：期刊论文
| 作者 | Li, Shuzhen; Deng, Ye; Du, Xiongfeng; Feng, Kai ; Wu, Yueni; He, Qing; Wang, Zhujun; Liu, Yangying; Wang, Danrui; Peng, Xi
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2021-05-01 |
| 卷号 | 767页码:- |
| 关键词 | Sampling strategy alpha diversity Pooling Biological replicate Common species Hill number |
| ISSN号 | 0048-9697 |
| 英文摘要 | Due to the massive quantity and broad phylogeny, an accurate measurement of microbial diversity is highly challenging in soil ecosystems. Initially, the deviation caused by sampling should be adequately considered. Here, we attempted to uncover the effect of different sampling strategies on a diversity measurement of soil prokaryotes. Four 1 m(2) sampling quadrats in a typical grassland were thoroughly surveyed through deep 16S rRNA gene sequencing (over 11 million reads per quadrat) with numerous replicates (33 soil sampling cores with total 141 replicates per quadrat). We found the difference in diversity was relatively small when pooling soil cores before and after DNA extraction and sequencing, but they were both superior to a non-pooling strategy. Pooling a small number of soil cores (i.e., 5 or 9) combined with several technical replicates is sufficient to estimate diversities for soil prokaryotes, and there is great flexibility in pooling original samples or data at different experimental steps. Additionally, the distribution of local alpha diversity varies with sampling core number, sequencing depth, and abundance distribution of the community, especially for high orders of Hill diversity index (Le., Shannon entropy and inverse Simpson index). For each grassland soil quadrat (1 m(2)), retaining 100,000 reads after taxonomic dustering might be a realistic option, as these number of reads can efficiently cover the majority of common species in this area. Our findings provide important guidance for soil sampling strategy, and the general results can serve as a basis for further studies. (C) 2021 Elsevier B.V. All rights reserved. |
| WOS研究方向 | Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/46152]  |
| 专题 | 生态环境研究中心_中国科学院环境生物技术重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, CAS Key Lab Environm Biotechnol, Beijing 100085, Peoples R China 2.Dalian Univ Technol, Sch Environm Sci & Technol, Minist Educ, Key Lab Ind Ecol & Environm Engn, Dalian 116024, Liaoning, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 4.Shandong Univ, Inst Marine Sci & Technol, Qingdao, Peoples R China 5.Univ Montpellier, MARBEC, CNRS, IRD,IFREMER, F-34090 Montpellier 5, France |
| 推荐引用方式 GB/T 7714 | Li, Shuzhen,Deng, Ye,Du, Xiongfeng,et al. Sampling cores and sequencing depths affected the measurement of microbial diversity in soil quadrats[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,767:-. |
| APA | Li, Shuzhen.,Deng, Ye.,Du, Xiongfeng.,Feng, Kai.,Wu, Yueni.,...&Qu, Yuanyuan.(2021).Sampling cores and sequencing depths affected the measurement of microbial diversity in soil quadrats.SCIENCE OF THE TOTAL ENVIRONMENT,767,-. |
| MLA | Li, Shuzhen,et al."Sampling cores and sequencing depths affected the measurement of microbial diversity in soil quadrats".SCIENCE OF THE TOTAL ENVIRONMENT 767(2021):-. |
入库方式： OAI收割
来源：生态环境研究中心
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