Abstract

The taxonomic composition of environmental communities is an important indicator of their ecology and function. Here, we use a set of protein-coding marker genes, extracted from large-scale environmental shotgun sequencing data, to provide a more direct, quantitative and accurate picture of community composition than traditional rRNA-based approaches using polymerase chain reaction (PCR). By mapping marker genes from four diverse environmental data sets onto a reference species phylogeny, we show that certain communities evolve faster than others, determine preferred habitats for entire microbial clades, and provide evidence that such habitat preferences are often remarkably stable over time.

Keywords

BiologyPhylogeneticsPhylogenetic treeCladeMetagenomicsEcologyEvolutionary biologyHabitatShotgun sequencingEnvironmental DNAMicrobial ecologyComputational biologyFunction (biology)Ribosomal RNAEnvironmental dataGeneDNA sequencingBiodiversityGeneticsBacteria

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Year
2009
Type
article
Citations
353
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Christian von Mering, Philip Hugenholtz, Jeroen Raes et al. (2009). Quantitative phylogenetic assessment of microbial communities indiverse environments. . https://doi.org/10.1126/science.1133420

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DOI
10.1126/science.1133420