Fig 2. Principal component analysis (PCA) separate serovars based on LFQ intensities.

The PCA plots show that the first and second principle components capture ~72% of the variability among the Salmonella serovars Typhi (STY), Paratyphi A (STPA), Typhimurium (STM) and Enteritidis (SENT) (A), 80% of the variability between the serovars STY and SPTA (B), and ~80% of the variability between the serovars STM and SENT (C). Reference strains for each serovar are presented in red.