High throughput sequencing analysis of biogeographical distribution of bacterial communities in the black soils of northeast China

Soil Biology and Biochemistry, Journal Year: 2014, Volume and Issue: 70, P. 113 - 122

Published: Jan. 3, 2014

Language: Английский

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Contrasting the relative importance of species sorting and dispersal limitation in shaping marine bacterial versus protist communities

The ISME Journal, Journal Year: 2017, Volume and Issue: 12(2), P. 485 - 494

Published: Nov. 10, 2017

Language: Английский

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Abundant fungi adapt to broader environmental gradients than rare fungi in agricultural fields

Global Change Biology, Journal Year: 2020, Volume and Issue: 26(8), P. 4506 - 4520

Published: April 23, 2020

Abstract Soil communities are intricately linked to ecosystem functioning, and a predictive understanding of how assemble in response environmental change is great ecological importance. Little known about the assembly processes governing abundant rare fungal across agro‐ecosystems, particularly with regard their adaptation. By considering taxa, we tested thresholds phylogenetic signals for preferences complex gradients reflect adaptation, explored factors influencing based on large‐scale soil survey agricultural fields eastern China. We found that taxa exhibited remarkably broader stronger compared taxa. Neutral played key role shaping subcommunity subcommunity. Null model analysis revealed was less clustered phylogenetically governed primarily by dispersal limitation, while homogeneous selection major process available sulfur factor mediating balance between stochastic deterministic both subcommunities, as indicated an increase stochasticity higher concentration. Based macroecological spatial scale datasets, our study potential adaptation identified distinct community fields. These results contribute mechanisms underlying generation maintenance diversity global change.

Language: Английский

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Spatial scale affects the relative role of stochasticity versus determinism in soil bacterial communities in wheat fields across the North China Plain

Microbiome, Journal Year: 2018, Volume and Issue: 6(1)

Published: Feb. 5, 2018

The relative importance of stochasticity versus determinism in soil bacterial communities is unclear, as are the possible influences that alter balance between these. Here, we investigated influence spatial scale on role and agricultural monocultures consisting only wheat, thereby minimizing differences plant species cover cultivation/disturbance regime, extending across a wide range soils climates North China Plain (NCP). We sampled 243 sites 1092 km sequenced 16S rRNA gene using MiSeq. hypothesized would play relatively stronger at broadest scales, due to strong climate selecting many distinct OTUs bacteria adapted different environments. In order test more general applicability hypothesis, also compared with natural ecosystem Tibetan Plateau. Our results revealed vs. did vary scale, direction predicted. On Plain, played dominant from 150 900 (separation pairs sites) dominated than (broad scale). Plateau, 130 1200 less km. Among identifiable deterministic factors, pH showed strongest community structure diversity Plain. Together, 23.9% variation microbial composition could be explained, environmental factors accounting for 19.7% parameters 4.1%. findings (1) stochastic processes important while Plateau; (2) was major factor shaping Plain; (3) most not explained existing factors. Further studies needed dissect (e.g., mutations or extinctions) distribution, which might make it easier predictably manipulate produce better yield sustainability outcomes.

Language: Английский

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Gene Expression Changes and Community Turnover Differentially Shape the Global Ocean Metatranscriptome

Cell, Journal Year: 2019, Volume and Issue: 179(5), P. 1068 - 1083.e21

Published: Nov. 1, 2019

Ocean microbial communities strongly influence the biogeochemistry, food webs, and climate of our planet. Despite recent advances in understanding their taxonomic genomic compositions, little is known about how transcriptomes vary globally. Here, we present a dataset 187 metatranscriptomes 370 metagenomes from 126 globally distributed sampling stations establish resource 47 million genes to study community-level across depth layers pole-to-pole. We examine gene expression changes community turnover as underlying mechanisms shaping along these axes environmental variation show individual contributions differ for multiple biogeochemically relevant processes. Furthermore, find relative contribution be significantly lower polar than non-polar waters hypothesize that regions, alterations activity response ocean warming will driven more by organismal composition regulatory mechanisms.Video AbstracteyJraWQiOiI4ZjUxYWNhY2IzYjhiNjNlNzFlYmIzYWFmYTU5NmZmYyIsImFsZyI6IlJTMjU2In0.eyJzdWIiOiI2ZDM3MTU3MTVlOWRjMjIwNjk3YmVlYTM4ZTFiYzA2NSIsImtpZCI6IjhmNTFhY2FjYjNiOGI2M2U3MWViYjNhYWZhNTk2ZmZjIiwiZXhwIjoxNjc5MzU4ODUzfQ.fR9n_CSDtj4NFNODQlYoh6-2hFK0eZLlkic_Tn2t6PReywCIRha7nJWNHEIa6TAVQq9D_kITAxjm7S04fAMziv-PQlBSfhL_LHBkD71WD64HFYZ-ET_4opJHSoEHKaf5frPuEEoZv_5n0WnuOl5fQlTHFURvD5f3GdcDiLnsUTIg_dKdeGl-KyXt6o9o5RDkcPiKgsNJkKAnw6nl263TvlMFG4WAW-wiQqbPBJCkmfoVvfMl1-qv6OMGso0eg7aFpbom6dqhlEZ4b4nBub03i9BEPccL7pf0G8bCICA2lqQB4j1ryqeK_zPImWClizV4XTOzLn7V-1MnIxPTsevMrg(mp4, (132.7 MB) Download video

Language: Английский

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Biogeographic patterns of abundant and rare bacterioplankton in three subtropical bays resulting from selective and neutral processes

The ISME Journal, Journal Year: 2018, Volume and Issue: 12(9), P. 2198 - 2210

Published: June 7, 2018

Unraveling the relative importance of ecological processes regulating microbial community structure is a central goal in ecology. Here, we used high-throughput sequencing to examine contribution selective and neutral assembly abundant rare subcommunities from three subtropical bays China. We found that bacterial taxa were distinctly different diversity, despite similar biogeographic patterns strong distance-decay relationships, but dispersal was more limited than taxa. Furthermore, environmental (selective processes) spatial (neutral factors seemed govern biogeography subcommunities, although both explained only small fraction variation within subcommunity. More importantly, partitioning (based on adjusted R2 redundancy analysis) showed exhibited slightly greater influence compared selection; however, subcommunity had much stronger response (17.3% pure variance explained) shown by bacteria (3.5%). These results demonstrate selection large proportion unexplained (91.1%) implies complex mechanisms may exist shape assemblages bays.

Language: Английский

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Groundwater–surface water mixing shifts ecological assembly processes and stimulates organic carbon turnover

Nature Communications, Journal Year: 2016, Volume and Issue: 7(1)

Published: April 7, 2016

Environmental transitions often result in resource mixtures that overcome limitations to microbial metabolism, resulting biogeochemical hotspots and moments. Riverine systems, where groundwater mixes with surface water (the hyporheic zone), are spatially complex temporally dynamic, making development of predictive models challenging. Spatial temporal variations zone communities a key, but understudied, component riverine function. Here, investigate the coupling among groundwater–surface mixing, biogeochemistry, we apply ecological theory, aqueous DNA sequencing ultra-high-resolution organic carbon profiling field samples collected across times locations representing broad range mixing conditions. Our results indicate stimulates heterotrophic respiration, alters composition, causes processes shift from stochastic deterministic is associated elevated abundances taxa may degrade suite compounds. Groundwater-surface zones link critical ecosystem domains, attendant microbe-biogeochemistry-hydrology interactions poorly known. authors show groundwater-surface shifts ecology deterministic.

Language: Английский

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Effects of dispersal and selection on stochastic assembly in microbial communities

The ISME Journal, Journal Year: 2016, Volume and Issue: 11(1), P. 176 - 185

Published: Aug. 5, 2016

Language: Английский

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Stochastic distribution of small soil eukaryotes resulting from high dispersal and drift in a local environment

The ISME Journal, Journal Year: 2015, Volume and Issue: 10(4), P. 885 - 896

Published: Sept. 22, 2015

Language: Английский

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Soil pH and temperature regulate assembly processes of abundant and rare bacterial communities in agricultural ecosystems

Environmental Microbiology, Journal Year: 2019, Volume and Issue: 22(3), P. 1052 - 1065

Published: Oct. 10, 2019

Summary The factors determining stochastic and deterministic processes that drive microbial community structure, specifically the balance of abundant rare bacterial taxa, remain underexplored. Here we examined biogeographic patterns taxa explored environmental influencing their assembly in agricultural fields across eastern China. More phylogenetic turnover correlating with spatial distance was observed than sub‐communities. Homogeneous selection main process for both sub‐communities; however, sub‐community more tightly clustered phylogenetically sensitive to dispersal limitations sub‐community. Rare rice maize were governed by processes, which showed higher operational taxonomic unit richness. We propose a conceptual paradigm wherein soil pH mean annual temperature mediate sub‐communities respectively. A leads For sub‐community, dominance stochasticity low‐temperature regions indicates weaker niche‐based exclusion arrival evolutionary lineages. These findings suggest are dependent on distinct variables agro‐ecosystems.

Language: Английский

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