Phylogenetic signal in the community structure of host-specific microbiomes of tropical marine sponges.
Phylogenetic signal in the community structure of host-specific microbiomes of tropical marine sponges.
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DOI：
10.3389/fmicb.2014.00532
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发表时间：
2014
影响因子：
5.2
通讯作者：
Thacker RW
中科院分区：
文献类型：
--
作者：
Easson CG;Thacker RW
海绵（Porifera）可以承载丰富多样的微生物共生体群落，这些共生体对宿主的代谢起着至关重要的作用。虽然这些群落通常是宿主特异性的，并且被假设与宿主共同进化，但宿主系统发育与微生物群落结构之间的相关性很少得到测试。作为地球微生物组计划（EMP）的一部分，我们调查了在狭窄地理范围内收集的20种热带海洋海绵的微生物组。我们测试了(1)微生物组多样性的单变量指标是否在宿主系统发育中显示出显著的系统发育信号；(2)宿主身份和宿主系统发育是分类和系统发育差异多变量分析的重要因素；(3)不同的最小读阈值对结果的影响。我们观察到，在所有读取阈值下，宿主物种之间的单变量多样性指标存在显著差异，在逆辛普森多样性指数(D)中存在强烈的系统发育信号。我们观察到宿主物种间群落差异的变化范围之广令人惊讶（4-73%）；这种变异与宿主物种内的微生物丰度无关。当单独考虑这些因素时，分类和系统发育差异显著地受到宿主身份和宿主系统发育的影响；当一起测试时，宿主系统发育的影响降低，但仍然显著。在我们的数据集中，这一结果主要是由于密切相关的宿主海绵拥有不同的微生物分类群。在所有最小读阈值下，主机标识保持了一个强的统计信号。虽然不同寄主海绵的特定微生物类群差异很大，但近亲寄主的微生物群落往往具有相似的相对丰度模式。我们假设低D的微生物组可能是由宿主对微生物群落的调节或竞争性优势共生体的存在构成的，这些共生体本身也在宿主特异性的选择下。
Sponges (Porifera) can host diverse and abundant communities of microbial symbionts that make crucial contributions to host metabolism. Although these communities are often host-specific and hypothesized to co-evolve with their hosts, correlations between host phylogeny and microbiome community structure are rarely tested. As part of the Earth Microbiome Project (EMP), we surveyed the microbiomes associated with 20 species of tropical marine sponges collected over a narrow geographic range. We tested whether (1) univariate metrics of microbiome diversity displayed significant phylogenetic signal across the host phylogeny; (2) host identity and host phylogeny were significant factors in multivariate analyses of taxonomic and phylogenetic dissimilarity; and (3) different minimum read thresholds impacted these results. We observed significant differences in univariate metrics of diversity among host species for all read thresholds, with strong phylogenetic signal in the inverse Simpson's index of diversity (D). We observed a surprisingly wide range of variability in community dissimilarity within host species (4–73%); this variability was not related to microbial abundance within a host species. Taxonomic and phylogenetic dissimilarity were significantly impacted by host identity and host phylogeny when these factors were considered individually; when tested together, the effect of host phylogeny was reduced, but remained significant. In our dataset, this outcome is largely due to closely related host sponges harboring distinct microbial taxa. Host identity maintained a strong statistical signal at all minimum read thresholds. Although the identity of specific microbial taxa varied substantially among host sponges, closely related hosts tended to harbor microbial communities with similar patterns of relative abundance. We hypothesize that microbiomes with low D might be structured by regulation of the microbial community by the host or by the presence of competitively dominant symbionts that are themselves under selection for host specificity.
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DOI：
10.1038/ismej.2012.8
发表时间：
2012-08
期刊：
The ISME journal
影响因子：
--
作者：
通讯作者：
--
影响因子：
5.6
作者：
Goff SA;Vaughn M;McKay S;Lyons E;Stapleton AE;Gessler D;Matasci N;Wang L;Hanlon M;Lenards A;Muir A;Merchant N;Lowry S;Mock S;Helmke M;Kubach A;Narro M;Hopkins N;Micklos D;Hilgert U;Gonzales M;Jordan C;Skidmore E;Dooley R;Cazes J;McLay R;Lu Z;Pasternak S;Koesterke L;Piel WH;Grene R;Noutsos C;Gendler K;Feng X;Tang C;Lent M;Kim SJ;Kvilekval K;Manjunath BS;Tannen V;Stamatakis A;Sanderson M;Welch SM;Cranston KA;Soltis P;Soltis D;O'Meara B;Ane C;Brutnell T;Kleibenstein DJ;White JW;Leebens-Mack J;Donoghue MJ;Spalding EP;Vision TJ;Myers CR;Lowenthal D;Enquist BJ;Boyle B;Akoglu A;Andrews G;Ram S;Ware D;Stein L;Stanzione D
通讯作者：
Stanzione D
影响因子：
5.8
作者：
Kembel, Steven W.;Cowan, Peter D.;Webb, Campbell O.
通讯作者：
Webb, Campbell O.
DOI：
10.1016/j.jembe.2005.07.010
发表时间：
2006-01-24
影响因子：
2
作者：
Lesser, MP
通讯作者：
Lesser, MP
影响因子：
4.2
作者：
Cleary, Daniel F. R.;Becking, Leontine E.;Gomes, Newton C. M.
通讯作者：
Gomes, Newton C. M.