Distinct assembly mechanisms underlie similar biogeographical patterns of rare and abundant bacteria in Tibetan Plateau grassland soils

dc.contributor.authorJi, Mukan
dc.contributor.authorKong, Weidong
dc.contributor.authorStegen, James
dc.contributor.authorYue, Linyan
dc.contributor.authorWang, Fei
dc.contributor.authorDong, Xiaobin
dc.contributor.authorCowan, Don A.
dc.contributor.authorFerrari, Belinda C.
dc.date.accessioned2021-05-24T10:38:49Z
dc.date.available2021-05-24T10:38:49Z
dc.date.issued2020-06
dc.description.abstractRare 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 (R2 = 0.65) than in abundant bacteria (R2 = 0.08). Our study provides novel insights into the assembly processes and biographical patterns of rare and abundant bacteria in dryland soils.en_ZA
dc.description.departmentGeneticsen_ZA
dc.description.librarianhj2021en_ZA
dc.description.sponsorshipBattelle Memorial Institute; Pacific Northwest National Laboratory; Office of Biological and Environmental Research; US Department of Energy (DOE); National Natural Science Foundation of China and Chinese Academy of Sciences.en_ZA
dc.description.urihttps://sfamjournals.onlinelibrary.wiley.com/journal/14622920en_ZA
dc.identifier.citationJi, M., Kong, W., Stegen, J. et al. 2020, 'Distinct assembly mechanisms underlie similar biogeographical patterns of rare and abundant bacteria in Tibetan Plateau grassland soils', Environmental Microbiology, vol. 22, no. 6, pp. 2261-2272.en_ZA
dc.identifier.issn1462-2912 (print)
dc.identifier.issn1462-2920 (online)
dc.identifier.other10.1111/1462-2920.14993
dc.identifier.urihttp://hdl.handle.net/2263/80017
dc.language.isoenen_ZA
dc.publisherWileyen_ZA
dc.rights© 2020 Society for Applied Microbiology and John Wiley & Sons Ltd. This is the pre-peer reviewed version of the following article : 'Distinct assembly mechanisms underlie similar biogeographical patterns of rare and abundant bacteria in Tibetan Plateau grassland soils', Environmental Microbiology, vol. 22, no. 6, pp. 2261-2272, 2020, doi : 10.1111/1462-2920.14993. The definite version is available at : https://sfamjournals.onlinelibrary.wiley.com/journal/14622920.en_ZA
dc.subjectRare biosphereen_ZA
dc.subjectBiogeographical patternsen_ZA
dc.subjectTerrestrial ecosystemsen_ZA
dc.subjectCommunity assembly processesen_ZA
dc.subjectCommunity compositionen_ZA
dc.subjectPhylogenyen_ZA
dc.subjectBacteriaen_ZA
dc.subjectDrylanden_ZA
dc.subjectGrassland soilsen_ZA
dc.subjectTibetan Plateauen_ZA
dc.titleDistinct assembly mechanisms underlie similar biogeographical patterns of rare and abundant bacteria in Tibetan Plateau grassland soilsen_ZA
dc.typePostprint Articleen_ZA

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