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Reconstruction of gene content evolution in Lactobacillales. The tree is a subset of that shown in Fig. 5, rooted by using Bacillus subtilis as the outgroup. For each species and each internal node of the tree, the inferred number of LaCOGs present and the numbers of LaCOGs lost (blue) and gained (red) along the branch leading to the given node (species) are indicated. Modified from reference 28 with permission of the publisher.
