The Biogeographic Pattern of Microbial Functional Genes along an Altitudinal Gradient of the Tibetan Pasture

	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
刊名	FRONTIERS IN MICROBIOLOGY
	2017-06-13
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.
内容类型	期刊论文
源URL	[http://210.75.249.4/handle/363003/7073]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
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]. FRONTIERS IN MICROBIOLOGY,2017.
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.
MLA	Qi, Qi,et al."The Biogeographic Pattern of Microbial Functional Genes along an Altitudinal Gradient of the Tibetan Pasture".FRONTIERS IN MICROBIOLOGY (2017).