Fig. 2

Core and pan-genome analysis of Hafnia. a The Hafnia core and pan-genome were constructed for 47 genome sequences of Hafnia, representing 2 species: 21 paralvei and 26 alvei. The genomes are in the same order as in the core genome tree (Fig. 1). b Core and pan-genome curves for genome sequences of alvei and paralvei show the downward trend of the core gene families and the upward trend of the pan gene families with the increasing number of genomes. We show the average and standard deviation of each value. The deduced mathematical function of pan-genome curves was reported. c Distribution of functional catalogues of alvei and paralvei. d Cluster map of the accessory genome of alvei and paralvei. The gene families that are unique to a species and conserved across most strains in that species are framed in black