Features of binned contigs for genomes of thaumarchaeota, epsilon- and gammaproteobacteria (≥ 5 Kb contigs).

<p>ND, not detected.</p

Principal component analysis of oligonucleotide frequencies in assembled contigs from two archaeal enrichment cultures

<p>(A) AR culture, and (B) SJ culture. Reference genomes are shown as larger circles. The total number of contigs for each group (<i>Gammaproteobacteria</i>, <i>Epsilonproteobacteria,</i> and <i>Thaumarchaeota</i>), total length, mean length, and GC content range are also indicated. The contig types and published genomes are as follows: orange, <i>Gammaproteobacteria</i>; yellow, <i>Thaumarchaeota</i>; green, <i>Epsilonproteobacteria</i>; light green, assembled contigs including viral coding sequences; gray, not identified; red, <i>Ca</i>. “Cenarchaum symbiosum” A (CsymA); fuchsia, <i>Ca</i>. “C. symbiosum” B (CsymB); lime, <i>Nitrosopumilus maritimus</i> SCM1 (Nmar); blue, <i>Ca</i>. “Nitrosoarchaeum koreensis” MY1 (MY1); cyan, <i>Ca</i>. “Nitrosoarchaeum limnia” (Nlim); violet, <i>Ca</i>. “Nitrososphaera gargensis” (Ngar); teal, <i>Sulfurovum</i> sp. NBC37-1 (Sul); and purple, <i>Thiomicrospira crunogena</i> XCL-2 (Tcr).</p

Comparison of the <i>Ca</i>. “Nitrosopumilus sediminis” AR2 genomic region containing genes for urea utilization with those of <i>Ca</i>. “Cenarchaeum symbiosum” and environmental metagenomes.

<p><i>Ca</i>. “N. sediminis” AR2 genome is central, with the <i>Ca</i>. “C. symbiosum”, <i>Ca</i>. “Nitrososphaera gargensis”, and environmental metagenomic regions above and below, respectively. Homologous genes are connected with shaded regions, and the shaded color indicates the percent identity as determined by TBLASTX.</p