Figure 1 : Phylum-level microbial composition of ancient dental calculus deposits.

From: Sequencing ancient calcified dental plaque shows changes in oral microbiota with dietary shifts of the Neolithic and Industrial revolutions

Figure 1

The distribution is similar to that of modern oral samples and distinct from those of non-template controls, ancient human teeth and environmental samples. The phylum frequencies for the V3 region are presented for the ancient calculus samples (BB, Bell Beaker), modern oral samples, which included pyrosequenced (calculus, plaque and saliva31) and cloned (plaque1,2,21) data, non-template controls (or extraction blanks), ancient human teeth and environmental samples (freshwater, sediments and soils34,35,36,37,38,39,40) (Supplementary Table 1). Phylum frequencies from HOMD were generated from partial and full-length sequences of the 16S rRNA gene. The phyla with a frequency of <1% include ABY1_OD1, AD3, Armatimonadetes, BRC1, CCM11b, Chlamydiae, Chlorobi, Cyanobacteria, Elusimicrobia, Euryarchaeota, Fibrobacteres, GAL15, Gemmatimonadetes, GN02, GN04, GOUTA4, KSB1, Lentisphaerae, NC10, Nitrospirae, NKB19, OP11, OP3, OP9, PAUC34f, Planctomycetes, SBR1093, SC3, SC4, SM2F11, SPAM, Spirochaetes, SR1, Tenericutes, Thermi, TM6, Verrucomicrobia, WPS-2, WS3 and ZB2.