Fig. 1: Core genome phylogenetic tree of 580 ST463-PA isolates from NCBI datasets as of August 27, 2024.

The concentric rings, from inside to outside, represent plasmid types, blaKPC gene carriage, separation year, and country/region of isolation for each strain. The tree was constructed using IQ-TREE version 2.1.433 with the GTR + F + ASC + R5 model and was midpoint rooted.