Extended Data Fig. 2: Depth distribution for UBA868 and non-UBA868 genomes across longitude.

Depths are represented in two scales: 0 and 1000 m (A) and 6000 m (B). Genomes classified as UBA868 (depicted in orange) are mainly retrieved from samples at greater depths than other genomes (blue) across longitudes (Mann-Whitney-Wilcoxon test, p-value = 2.5 × 10−36). Specifically, UBA868 shows a median depth value of 284 m, while non-UBA868 samples display a median depth of 34 m. Genomes are those from Paoli et al., 2022 (doi: 10.1038/s41586-022-04862-3).