Phylogenetic beta diversity in bacterial assemblages across ecosystems: deterministic versus stochastic processes

	Phylogenetic beta diversity in bacterial assemblages across ecosystems: deterministic versus stochastic processes
其他题名	Responses of Mytilus galloprovincialis to bacterial challenges by metabolomics and proteomics.pdf
	Wang, Jianjun 1,2; Shen, Ji 1; Wu, Yucheng 3; Tu, Chen4 ; Soininen, Janne 5; Stegen, James C.6; He, Jizheng 2; Liu, Xingqi 1; Zhang, Lu1 ; Zhang, Enlou 1; Wang, JJ (reprint author), Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, 73 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China. [email protected]
发表期刊	ISME JOURNAL
ISSN	1751-7362
	2013-07-01
卷号	7 期号:7 页码:1310-1321
关键词	Bacteria Community Composition Distance-decay Relationship Evolutionary Niche Conservatism Neutral Theory Phylogenetic Beta Diversity
产权排序	[Wang, Jianjun; Shen, Ji; Liu, Xingqi; Zhang, Lu; Zhang, Enlou] Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China; [Wang, Jianjun; He, Jizheng] Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing, Peoples R China; [Wu, Yucheng] Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Peoples R China; [Tu, Chen] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai, Peoples R China; [Soininen, Janne] Univ Helsinki, Dept Geosci & Geog, Helsinki, Finland; [Stegen, James C.] Pacific Northwest Natl Lab, Div Biol Sci, Fundamental & Computat Sci Directorate, Richland, WA USA
英文摘要	Increasing evidence has emerged for non-random spatial distributions of microbes, but knowledge of the processes that cause variation in microbial assemblage among ecosystems is lacking. For instance, some studies showed that deterministic processes such as habitat specialization are important, while other studies hold that bacterial communities are assembled by stochastic forces. Here we examine the relative influence of deterministic and stochastic processes for bacterial communities from subsurface environments, stream biofilm, lake water, lake sediment and soil using pyrosequencing of the 16S ribosomal RNA gene. We show that there is a general pattern in phylogenetic signal in species ecological niches across recent evolutionary time for all studied habitats, enabling us to infer the influences of community assembly processes from patterns of phylogenetic turnover in community composition. The phylogenetic dissimilarities among-habitat types were significantly higher than within them, and the communities were clustered according to their original habitat types. For communities within-habitat types, the highest phylogenetic turnover rate through space was observed in subsurface environments, followed by stream biofilm on mountainsides, whereas the sediment assemblages across regional scales showed the lowest turnover rate. Quantifying phylogenetic turnover as the deviation from a null expectation suggested that measured environmental variables imposed strong selection on bacterial communities for nearly all sample groups. For three sample groups, spatial distance reflected unmeasured environmental variables that impose selection, as opposed to spatial isolation. Such characterization of spatial and environmental variables proved essential for proper interpretation of partial Mantel results based on observed beta diversity metrics. In summary, our results clearly indicate a dominant role of deterministic processes on bacterial assemblages and highlight that bacteria show strong habitat associations that have likely emerged through evolutionary adaptation.; Increasing evidence has emerged for non-random spatial distributions of microbes, but knowledge of the processes that cause variation in microbial assemblage among ecosystems is lacking. For instance, some studies showed that deterministic processes such as habitat specialization are important, while other studies hold that bacterial communities are assembled by stochastic forces. Here we examine the relative influence of deterministic and stochastic processes for bacterial communities from subsurface environments, stream biofilm, lake water, lake sediment and soil using pyrosequencing of the 16S ribosomal RNA gene. We show that there is a general pattern in phylogenetic signal in species ecological niches across recent evolutionary time for all studied habitats, enabling us to infer the influences of community assembly processes from patterns of phylogenetic turnover in community composition. The phylogenetic dissimilarities among-habitat types were significantly higher than within them, and the communities were clustered according to their original habitat types. For communities within-habitat types, the highest phylogenetic turnover rate through space was observed in subsurface environments, followed by stream biofilm on mountainsides, whereas the sediment assemblages across regional scales showed the lowest turnover rate. Quantifying phylogenetic turnover as the deviation from a null expectation suggested that measured environmental variables imposed strong selection on bacterial communities for nearly all sample groups. For three sample groups, spatial distance reflected unmeasured environmental variables that impose selection, as opposed to spatial isolation. Such characterization of spatial and environmental variables proved essential for proper interpretation of partial Mantel results based on observed beta diversity metrics. In summary, our results clearly indicate a dominant role of deterministic processes on bacterial assemblages and highlight that bacteria show strong habitat associations that have likely emerged through evolutionary adaptation.
文章类型	Article
资助机构	973 Program [2012CB956100]; key project of NSFC [41030211]; NIGLAS [NIGLAS2012135004]; NSFC [40903031, 41273088, 41271468]; Jiangsu NSF [BK2010605]; CPSF [2011M500397]; CAS oversea visiting scholarship [2011-115]; Youth Innovation Promotion Association, CAS; Linus Pauling Distinguished Postdoctoral Fellowship at PNNL
收录类别	SCI
语种	英语
关键词[WOS]	COMMUNITY ECOLOGY ; MICROBIAL COMMUNITIES ; NICHE CONSERVATISM ; GLOBAL PATTERNS ; BIOGEOGRAPHY ; MICROORGANISMS ; SUBSURFACE ; SIMILARITY ; FRAMEWORK ; DYNAMICS
研究领域[WOS]	Environmental Sciences & Ecology ; Microbiology
WOS记录号	WOS:000320852100007
引用统计	被引频次：477[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/6981
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院烟台海岸带研究所知识产出
通讯作者	Wang, JJ (reprint author), Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, 73 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China. [email protected]
作者单位	1.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing, Peoples R China 4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Zone Environm Proc, Yantai, Peoples R China 5.Univ Helsinki, Dept Geosci & Geog, Helsinki, Finland 6.Pacific Northwest Natl Lab, Div Biol Sci, Fundamental & Computat Sci Directorate, Richland, WA USA
推荐引用方式 GB/T 7714	Wang, Jianjun,Shen, Ji,Wu, Yucheng,et al. Phylogenetic beta diversity in bacterial assemblages across ecosystems: deterministic versus stochastic processes[J]. ISME JOURNAL,2013,7(7):1310-1321.
APA	Wang, Jianjun.,Shen, Ji.,Wu, Yucheng.,Tu, Chen.,Soininen, Janne.,...&Wang, JJ .(2013).Phylogenetic beta diversity in bacterial assemblages across ecosystems: deterministic versus stochastic processes.ISME JOURNAL,7(7),1310-1321.
MLA	Wang, Jianjun,et al."Phylogenetic beta diversity in bacterial assemblages across ecosystems: deterministic versus stochastic processes".ISME JOURNAL 7.7(2013):1310-1321.

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