The diversity, origin, and evolutionary analysis of geosmin synthase gene in cyanobacteria
文献类型：期刊论文
| 作者 | Wang, Zhongjie3; Song, Gaofei1; Li, Yeguang3; Yu, Gongliang1; Hou, Xiaoyu3,4; Gan, Zixuan2; Li, Renhui1 |
| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 689页码:789-796 |
| 关键词 | Odor Phylogeny Purifying selection Horizontal gene transfer Evolution Sesquiterpene |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2019.06.468 |
| 英文摘要 | The sesquiterpene geosmin, mainly originating from cyanobacteria, is considered one of the problematic odor compounds responsible for unpleasant-tasting and-smelling water episodes in freshwater supplies. The biochemistry and genetics of geosmin synthesis in cyanobacteria is well-elucidated and the geosmin synthase gene (geo) has been cloned and characterized in recent years. However, understanding the diversity, origin, and evolution of geo has been hindered by the limited availability of geo sequences to date. On the basis of the cloned geo sequences from16 filamentous geosmin-producing cyanobacterial species, representing 11 genera in Nostocales and Oscillatoriales, the diversity and evolution of geo in cyanobacteria was systematically analyzed in this study. Homologous alignment revealed that geo is highly conserved among the examined cyanobacterial species, with DNA sequence identities >0.72. Phylogenetic reconstruction and codon bias analysis based on geo suggest that cyanobacterial geo form a monophyletic branch with a common origin and ancestor for cyanobacteria, actinomycetes, and rnyxobacteria. The global ratio of nonsynonymous/synonymous nucleotide substitutions dN/dS) was 0.125, which is substantially <1 and indicates strong purifying selection in the evolution of cyanobacterial gm. To add to further interest, horizontal gene transfer of cyanobacterial geo in evolutionary history was confirmed by the discovery of an incongruent coevolutionary relationship between geo and housekeeping genes 165 rDNA and rpoC. The present study enhances the fundamental understanding of cyanobacterial geo in diversity and evolution, and sheds light on the development of molecular assays for detection and molecular ecology research of geosmin-producing cyanobacteria. (C) 2019 Elsevier B.V. All rights reserved. |
| 资助项目 | National Science Foundation of China[NSFC 31502192] ; National Key Research and Development Program of China[2017YFA0605201] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000482379400077 |
| 出版者 | ELSEVIER |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/8644]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Li, Renhui |
| 作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Algal Biol, Wuhan 430072, Hubei, Peoples R China 2.Wuhan Foreign Language Sch Meiga Acad, Wuhan 430200, Hubei, Peoples R China 3.Chinese Acad Sci, Innovat Acad Seed Design, Wuhan Bot Garden, Key Lab Plant Gennplasm Enhancement & Specialty A, Wuhan 430074, Hubei, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Zhongjie,Song, Gaofei,Li, Yeguang,et al. The diversity, origin, and evolutionary analysis of geosmin synthase gene in cyanobacteria[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,689:789-796. |
| APA | Wang, Zhongjie.,Song, Gaofei.,Li, Yeguang.,Yu, Gongliang.,Hou, Xiaoyu.,...&Li, Renhui.(2019).The diversity, origin, and evolutionary analysis of geosmin synthase gene in cyanobacteria.SCIENCE OF THE TOTAL ENVIRONMENT,689,789-796. |
| MLA | Wang, Zhongjie,et al."The diversity, origin, and evolutionary analysis of geosmin synthase gene in cyanobacteria".SCIENCE OF THE TOTAL ENVIRONMENT 689(2019):789-796. |
入库方式： OAI收割
来源：武汉植物园
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