Magnetosome Gene Duplication as an Important Driver in the Evolution of Magnetotaxis in the Alphaproteobacteria | |
Du, Haijian1,2; Zhang, Wenyan1,2,10; Zhang, Wensi8,9,10,11; Zhang, Weijia3,4,5; Pan, Hongmiao1,2,10; Pan, Yongxin8,9,10,11; Bazylinski, Dennis A.6; Wu, Long-Fei7,10; Xiao, Tian1,2,10; Lin, Wei8,9,10 | |
刊名 | MSYSTEMS |
2019-09-01 | |
卷号 | 4期号:5页码:10 |
关键词 | Terasakiella evolution gene duplication genomes magnetosome gene cluster magnetotactic bacteria magnetotaxis pure cultivation |
ISSN号 | 2379-5077 |
DOI | 10.1128/mSystems.00315-19 |
通讯作者 | Xiao, Tian(txiao@qdio.ac.cn) ; Lin, Wei(weilin0408@gmail.com) |
英文摘要 | The evolution of microbial magnetoreception (or magnetotaxis) is of great interest in the fields of microbiology, evolutionary biology, biophysics, geomicrobiology, and geochemistry. Current genomic data from magnetotactic bacteria (MTB), the only prokaryotes known to be capable of sensing the Earth's geomagnetic field, suggests an ancient origin of magnetotaxis in the domain Bacteria. Vertical inheritance, followed by multiple independent magnetosome gene cluster loss, is considered to be one of the major forces that drove the evolution of magnetotaxis at or above the class or phylum level, although the evolutionary trajectories at lower taxonomic ranks (e.g., within the class level) remain largely unstudied. Here we report the isolation, cultivation, and sequencing of a novel magnetotactic spirillum belonging to the genus Terasakiella (Terasakiella sp. strain SH-1) within the class Alphaproteobacteria. The complete genome sequence of Terasakiella sp. strain SH-1 revealed an unexpected duplication event of magnetosome genes within the mamAB operon, a group of genes essential for magnetosome biomineralization and magnetotaxis. Intriguingly, further comparative genomic analysis suggests that the duplication of mamAB genes is a common feature in the genomes of alphaproteobacterial MTB. Taken together, with the additional finding that gene duplication appears to have also occurred in some magnetotactic members of the Deltaproteobacteria, our results indicate that gene duplication plays an important role in the evolution of magnetotaxis in the Alphaproteobacteria and perhaps the domain Bacteria. IMPORTANCE A diversity of organisms can sense the geomagnetic field for the purpose of navigation. Magnetotactic bacteria are the most primitive magnetism-sensing organisms known thus far and represent an excellent model system for the study of the origin, evolution, and mechanism of microbial magnetoreception (or magnetotaxis). The present study is the first report focused on magnetosome gene cluster duplication in the Alphaproteobacteria, which suggests the important role of gene duplication in the evolution of magnetotaxis in the Alphaproteobacteria and perhaps the domain Bacteria. A novel scenario for the evolution of magnetotaxis in the Aiphaproteobacteria is proposed and may provide new insights into evolution of magnetoreception of higher species. |
资助项目 | National Natural Science Foundation of China (NSFC)[41606187] ; National Natural Science Foundation of China (NSFC)[41776131] ; NSFC-Shandong Joint Fund for Marine Science Research Centers[U1706208] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDA17010501] ; NSFC[41621004] ; NSFC[41822704] ; U.S. National Science Foundation (NSF)[EAR-1423939] |
WOS研究方向 | Microbiology |
语种 | 英语 |
出版者 | AMER SOC MICROBIOLOGY |
WOS记录号 | WOS:000500493300006 |
内容类型 | 期刊论文 |
源URL | [http://ir.qdio.ac.cn/handle/337002/163846] |
专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
通讯作者 | Xiao, Tian; Lin, Wei |
作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao, Shandong, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao, Shandong, Peoples R China 3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Deep Sea Microbial Cell Biol, Sanya, Peoples R China 4.CAS Beijing Qingdao Sanya, CNRS Marseille, Int Associated Lab Evolut & Dev Magnetotact Multi, Marseille, France 5.Chinese Acad Sci, Inst Deep Sea Sci & Engn, CAS Key Lab Expt Study Deep Sea Extreme Condit, Sanya, Peoples R China 6.Univ Nevada, Sch Life Sci, Las Vegas, NV 89154 USA 7.Aix Marseille Univ, CNRS, LCB, Marseille, France 8.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China 9.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China 10.Chinese Acad Sci, France China Joint Lab Evolut & Dev Magnetotact M, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Du, Haijian,Zhang, Wenyan,Zhang, Wensi,et al. Magnetosome Gene Duplication as an Important Driver in the Evolution of Magnetotaxis in the Alphaproteobacteria[J]. MSYSTEMS,2019,4(5):10. |
APA | Du, Haijian.,Zhang, Wenyan.,Zhang, Wensi.,Zhang, Weijia.,Pan, Hongmiao.,...&Lin, Wei.(2019).Magnetosome Gene Duplication as an Important Driver in the Evolution of Magnetotaxis in the Alphaproteobacteria.MSYSTEMS,4(5),10. |
MLA | Du, Haijian,et al."Magnetosome Gene Duplication as an Important Driver in the Evolution of Magnetotaxis in the Alphaproteobacteria".MSYSTEMS 4.5(2019):10. |
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