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. 2020 Jun;26(6):1164–1173. doi: 10.3201/eid2606.191121

Figure 3.

Figure 3

Principal component analysis plot comparing accessory (noncore) genome of chromosome contigs of strains of Salmonella enterica serovar Paratyphi B variant Java sequence type 28. Oval rings indicate clusters I and II. Cluster I grouped together historical strain IP_6155/87 with all strains from Europe and some from Latin American. Cluster II grouped Latin America strains only. Cluster II was associated with a prophage sequence highly similar to the Salmonella phage SEN34 (National Center for Biotechnology Information reference sequence no. NC_028699.1). The prophage sequence was absent in strains from cluster I.