气候变化领域集成服务门户(CCPortal): Distinct assembly mechanisms underlie similar biogeographical patterns of rare and abundant bacteria in Tibetan Plateau grassland soils

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DOI	10.1111/1462-2920.14993
	Distinct assembly mechanisms underlie similar biogeographical patterns of rare and abundant bacteria in Tibetan Plateau grassland soils
	Ji, Mukan; Kong, Weidong; Stegen, James; Yue, Linyan; Wang, Fei; Dong, Xiaobin; Cowan, Don A.; Ferrari, Belinda C.
通讯作者	Kong, WD (通讯作者)
发表日期	2020
ISSN	1462-2912
EISSN	1462-2920
起始页码	2261
结束页码	2272
卷号	22 期号:6
英文摘要	Rare biosphere represents the majority of Earth's biodiversity and performs vital ecological functions, yet little is known about its biogeographical patterns and community assembly processes in terrestrial ecosystems. Herein, we investigated the community composition and phylogeny of rare (relative abundance <0.1%) and abundant (>1%) bacteria in dryland grassland soils on the Tibetan Plateau. Results revealed similar biogeographical patterns of rare and abundant bacteria at both compositional and phylogenetic levels, but rare subcommunity was more heavily influenced by stochasticity (72%) than the abundant (57%). The compositional variation of rare bacteria was less explained by environmental factors (41%) than that of the abundant (80%), while the phylogeny of rare bacteria (36%) was more explained than that of the abundant (29%). The phylogeny of rare bacteria was equally explained by local factors (soil and vegetation) and geospatial distance (11.5% and 11.9% respectively), while that of the abundant was more explained by geospatial distance (22.1%) than local factors (11.3%). Furthermore, a substantially tighter connection between the community phylogeny and composition was observed in rare (R-2 = 0.65) than in abundant bacteria (R-2 = 0.08). Our study provides novel insights into the assembly processes and biographical patterns of rare and abundant bacteria in dryland soils.
关键词	MICROBIAL COMMUNITY DETERMINISTIC PROCESSES BETA DIVERSITY BIOSPHERE REDUCTION DISPERSAL RESPONSES FIXATION DYNAMICS DOMINANT
语种	英语
WOS研究方向	Microbiology
WOS类目	Microbiology
WOS记录号	WOS:000523250200001
来源期刊	ENVIRONMENTAL 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/260048
推荐引用方式 GB/T 7714	Ji, Mukan,Kong, Weidong,Stegen, James,et al. Distinct assembly mechanisms underlie similar biogeographical patterns of rare and abundant bacteria in Tibetan Plateau grassland soils[J]. 中国科学院青藏高原研究所,2020,22(6).
APA	Ji, Mukan.,Kong, Weidong.,Stegen, James.,Yue, Linyan.,Wang, Fei.,...&Ferrari, Belinda C..(2020).Distinct assembly mechanisms underlie similar biogeographical patterns of rare and abundant bacteria in Tibetan Plateau grassland soils.ENVIRONMENTAL MICROBIOLOGY,22(6).
MLA	Ji, Mukan,et al."Distinct assembly mechanisms underlie similar biogeographical patterns of rare and abundant bacteria in Tibetan Plateau grassland soils".ENVIRONMENTAL MICROBIOLOGY 22.6(2020).