Phylogenetic tree of the sdiA gene

<i>The phylogenetic tree of Salmonella sdiA gene sequences demonstrate notable genetic diversity across various serovars</i>. <i>A major cluster includes numerous S. </i>Enteritidis<i> strains, such as "Slowbro," "Swellow," "Wailord," and others, which group closely together yet display clear internal branching—suggesting intra-serovar variation within S. </i>Enteritidis<i>. Additional S. </i>Enteritidis<i> strains like "Charizard," "Marill," and "Glaceon" form a distinct subcluster, reinforcing the notion of genetic divergence within the same serovar. Other serovars, including S. </i>Typhimurium<i> (strains 14028 and S34), S. </i>Typhi <i>(Salty24446 1972 and 2017), and S. </i>Dublin<i> (SAL-19-0015), form separate, well-supported clades, indicating serovar-specific evolutionary divergence.</i>