气候变化领域集成服务门户(CCPortal): The Biogeographic Pattern of Microbial Functional Genes along an Altitudinal Gradient of the Tibetan Pasture

CCPortal

DOI	10.3389/fmicb.2017.00976
	The Biogeographic Pattern of Microbial Functional Genes along an Altitudinal Gradient of the Tibetan Pasture
	Qi, Qi; Zhao, Mengxin; Wang, Shiping; Ma, Xingyu; Wang, Yuxuan; Gao, Ying; Lin, Qiaoyan; Li, Xiangzhen; Gu, Baohua; Li, Guoxue; Zhou, Jizhong; Yang, Yunfeng
通讯作者	Yang, YF (通讯作者)
发表日期	2017
EISSN	1664-302X
卷号	8
英文摘要	As the highest place of the world, the Tibetan plateau is a fragile ecosystem. Given the importance of microbial communities in driving soil nutrient cycling, it is of interest to document the microbial biogeographic pattern here. We adopted a microarray-based tool named GeoChip 4.0 to investigate grassland microbial functional genes along an elevation gradient from 3200 to 3800 m above sea level open to free grazing by local herdsmen and wild animals. Interestingly, microbial functional diversities increase with elevation, so does the relative abundances of genes associated with carbon degradation, nitrogen cycling, methane production, cold shock and oxygen limitation. The range of Shannon diversities (10.27-10.58) showed considerably smaller variation than what was previously observed at ungrazed sites nearby (9.95-10.65), suggesting the important role of livestock grazing on microbial diversities. Closer examination showed that the dissimilarity of microbial community at our study sites increased with elevations, revealing an elevation-decay relationship of microbial functional genes. Both microbial functional diversity and the number of unique genes increased with elevations. Furthermore, we detected a tight linkage of greenhouse gas (CO2) and relative abundances of carbon cycling genes. Our biogeographic study provides insights on microbial functional diversity and soil biogeochemical cycling in Tibetan pastures.
关键词	ELEVATION GRADIENT SOIL TRANSPLANT ALPINE MEADOW DIVERSITY COMMUNITY CARBON BACTERIAL FOREST MOISTURE ABUNDANCE
英文关键词	microbial biogeography; soil microbial community; microbial functional potential; alpine grassland; altitudinal gradient
语种	英语
WOS研究方向	Microbiology
WOS类目	Microbiology
WOS记录号	WOS:000403138000001
来源期刊	FRONTIERS IN MICROBIOLOGY
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/259098
推荐引用方式 GB/T 7714	Qi, Qi,Zhao, Mengxin,Wang, Shiping,et al. The Biogeographic Pattern of Microbial Functional Genes along an Altitudinal Gradient of the Tibetan Pasture[J]. 中国科学院青藏高原研究所,2017,8.
APA	Qi, Qi.,Zhao, Mengxin.,Wang, Shiping.,Ma, Xingyu.,Wang, Yuxuan.,...&Yang, Yunfeng.(2017).The Biogeographic Pattern of Microbial Functional Genes along an Altitudinal Gradient of the Tibetan Pasture.FRONTIERS IN MICROBIOLOGY,8.
MLA	Qi, Qi,et al."The Biogeographic Pattern of Microbial Functional Genes along an Altitudinal Gradient of the Tibetan Pasture".FRONTIERS IN MICROBIOLOGY 8(2017).