Fig. 2.

—Genome reduction from the common ancestor of Lactobacillus sanfranciscensis and Lactobacillus micheneri is conserved in the present-day species. Gene gain and loss was calculated with the Wagner Parsimony assumption in the Count program (Gene Gain Penalty = 2). Numbers that are labeled GF (blue) are the total counts of gene families present in the genome or ancestral state. Numbers labeled G (green) and L (red) are the counts of gene families gained and lost in the genome or ancestral state, respectively.