Display-processing device for mass spectrometry data

A display-processing device for mass spectrometry data configured to display mass spectrometry data on a screen of a display device, comprising:

• a spectrum acquirer configured to acquire a mass spectrum obtained by a mass spectrometric analysis of a test microorganism;
• a genome-related information acquirer configured to acquire genome-related information which includes information concerning a plurality of proteins encoded by a genome of a known microorganism which is supposed to be identical or related to the test microorganism based on the mass spectrum and information indicating locations of a plurality of genes which respectively encode the plurality of proteins on the genome;
• a correspondence relationship determiner configured to determine a correspondence relationship between a plurality of peaks on the mass spectrum and the plurality of proteins, based on the mass spectrum and the genome-related information;
• and
• a display controller configured to display an identifier and a genome map along with the mass spectrum on the screen, where the identifier is given to at least one of the plurality of peaks and represents the correspondence relationship between the peak concerned and one of the plurality of proteins determined by the correspondence relationship determiner, while the genome map is created based on the genome-related information and shows the locations of the plurality of genes on the genome.