Fig. 2

Phylogenetic and functional profile for the 17 Loxahatchee soil metagenomes. Samples are denoted by the last five digits of the IMG Genome ID, with the underscore designating the sampling sites 1–4. a Stacked bar charts represent relative phylum-level abundances for the most abundant phyla based on the taxonomic affiliation of the annotated proteins within each metagenome. b Cluster analysis of COG categories based on the relative abundances of the protein dataset within each metagenome. Heatmap is scaled by relative abundances for each row ranging from low relative abundance (blue) to high relative abundance (yellow). COG categories are as follows: A, RNA processing and modification; B, chromatin structure and dynamics; C, energy production and conversion; D, cell division, chromosome partitioning; E, amino acid transport and metabolism; F, nucleotide transport and metabolism; G, carbohydrate transport and metabolism; H, coenzyme transport and metabolism; I, lipid transport and metabolism; J, translation and biogenesis; K, transcription; L, replication, recombination, and repair; M, cell wall/membrane/envelope; N, cell motility; O, protein turnover, chaperones; P, inorganic ion transport and metabolism; Q, secondary metabolism; R, general function prediction only; S, function unknown; T, signal transduction mechanisms; U, intracellular trafficking and secretion; V, defense mechanisms; W, extracellular structures; X, Mobilome: prophages, transposons; and Z, cytoskeleton