气候变化领域集成服务门户(CCPortal): Genomic Insights of Dyadobacter tibetensis Y620-1 Isolated from Ice Core Reveal Genomic Features for Succession in Glacier Environment

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DOI	10.3390/microorganisms7070211
	Genomic Insights of Dyadobacter tibetensis Y620-1 Isolated from Ice Core Reveal Genomic Features for Succession in Glacier Environment
	Shen, Liang; Liu, Yongqin; Wang, Ninglian; Adhikari, Namita Paudel
通讯作者	Liu, YQ (通讯作者)
发表日期	2019
EISSN	2076-2607
卷号	7 期号:7
英文摘要	Glaciers have been recognized as biomes, dominated by microbial life. Many novel species have been isolated from glacier ecosystems, and their physiological features are well characterized. However, genomic features of bacteria isolated from the deep ice core are poorly understood. In this study, we performed a comparative genomic analysis to uncover the genomic features of strain Dyadobacter tibetensis Y620-1 isolated from a 59 m depth of the ice core drilled from a Tibetan Plateau glacier. Strain D. tibetensis Y620-1 had the smallest genome among the 12 cultured Dyadobacter strains, relatively low GC content, and was placed at the root position of the phylogenomic tree. The gene family based on a nonmetric multidimensional scaling (NMDS) plot revealed a clear separation of strain D. tibetensis Y620-1 from the reference strains. The genome of the deep ice core isolated strain contained the highest percentage of new genes. The definitive difference is that all genes required for the serine-glyoxylate cycle in one-carbon metabolism were only found in strain D. tibetensis Y620-1, but not in any of the reference strains. The placement of strain D. tibetensis Y620-1 in the root of the phylogenomic tree suggests that these new genes and functions are of ancient origin. All of these genomic features may contribute to the survival of D. tibetensis Y620-1 in the glacier.
关键词	SP-NOV.SURFACE CARBON TREE
英文关键词	glacier; ice core; genomics; Dyadobacter
语种	英语
WOS研究方向	Microbiology
WOS类目	Microbiology
WOS记录号	WOS:000478618800013
来源期刊	MICROORGANISMS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259531
推荐引用方式 GB/T 7714	Shen, Liang,Liu, Yongqin,Wang, Ninglian,et al. Genomic Insights of Dyadobacter tibetensis Y620-1 Isolated from Ice Core Reveal Genomic Features for Succession in Glacier Environment[J]. 中国科学院青藏高原研究所,2019,7(7).
APA	Shen, Liang,Liu, Yongqin,Wang, Ninglian,&Adhikari, Namita Paudel.(2019).Genomic Insights of Dyadobacter tibetensis Y620-1 Isolated from Ice Core Reveal Genomic Features for Succession in Glacier Environment.MICROORGANISMS,7(7).
MLA	Shen, Liang,et al."Genomic Insights of Dyadobacter tibetensis Y620-1 Isolated from Ice Core Reveal Genomic Features for Succession in Glacier Environment".MICROORGANISMS 7.7(2019).