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学科主题: 生物科学::普通生物学
题名: Comparative genomic analysis reveals the environmental impacts on two Arcticibacter strains including sixteen Sphingobacteriaceae species
作者: Shen, L (Shen, Liang)1, 2, 3; Liu, YQ (Liu, Yongqin)1, 2; Xu, BQ (Xu, Baiqing)1, 2; Wang, NL (Wang, Ninglian)2, 4; Zhao, HB (Zhao, Huabiao)1, 2; Liu, XB (Liu, Xiaobo)1; Liu, F (Liu, Fei)5
通讯作者: Liu, YQ
关键词: COLD ADAPTATION ; SP NOV. ; LISTERIA-MONOCYTOGENES ; RAPID ANNOTATION ; DEGREES-C ; BACTERIUM ; ICE ; STRESS ; SOIL ; HABITATS
刊名: SCIENTIFIC REPORTS
发表日期: 2017
DOI: 10.1038/s41598-017-02191-4
卷: 7, 期:0, 页:2055
收录类别: SCI
合作性质: 国内
文章类型: Article
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
英文摘要: How the genomic diversity of species is driven by geographical isolation and environmental factors are not well understood for cold environments. Here, the environmental stress responses of two phylogenetically close Arcticibacter strains, A. eurypsychrophilus MJ9-5 and A. svalbardensis MN12-7, isolated from a Tibetan Plateau glacier and Svalbard soil, were analyzed. The comparative genomic analysis was performed with sixteen other related Sphingobacteriaceae species. Analyses of the relationships between growth temperature and genome composition, cold and heat shock genes showed that genomic adaption characteristics were more obvious when the strains were grouped by their upper limit in growth temperature, rather than by their minimal or optimal growth temperatures for Sphingobacteriaceae species. The very divergent genetic distance of genome fractions assigned to the functions of 'secondary metabolism', 'dormancy and sporulation' and 'metabolism of aromatic compounds' indicated the heterogeneous evolution of genes under different environmental pressures of the Sphingobacteriaceae species. The greatest differences between strains MJ9-5 and MN12-7 occurred in the genes devoted to the CRISPRs, osmotic adaption and metabolism of monosaccharides, nitrogen and aromatic compounds. These distinctions corresponded to two different environmental pressures, salinity and nutritional level, in the glacier ice and Svalbard soil environments.
语种: 英语
WOS记录号: WOS:000401511100062
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/8241
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100085, Peoples R China.
2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100085, Peoples R China.
3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China.
4.Northwest Univ, Coll Urban & Environm Sci, Xian 710069, Peoples R China.
5.Chinese Acad Sci, Inst Microbiol, Beijing 100101, Peoples R China.

Recommended Citation:
Shen, L ,Liu, YQ ,Xu, BQ ,et al. Comparative genomic analysis reveals the environmental impacts on two Arcticibacter strains including sixteen Sphingobacteriaceae species[J]. SCIENTIFIC REPORTS,2017,7(0):2055.
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