Fig. 3

Genome-wide phylogenetic analysis of UBA5794 lineages. A total of 98 non-redundant UBA5794 genomes were collected from the GTDB database, Southwest Indian Ocean sediments dataset [31], and this study (marked with red stars). The tree was constructed with IQ-tree (v2.1.2) based on the concatenated alignment of 291 OGs shared between UBA5794 and “Ca. Actinomarinales”. Branches were colored according to the classification at the family level. The connected circle layers represent estimated genome size, coding density, sigma factor numbers, and HGT numbers from inside to outside. Colors of the outermost cycle reflect the habitat sources. Bootstrap values over 90% of 1,000 resamples are shown as grey dots. The two clusters of UBA5794 are labelled with “Cluster 1” and “Cluster 2”