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Fig. 2 | BMC Genomics

Fig. 2

From: Grafting or pruning in the animal tree: lateral gene transfer and gene loss?

Fig. 2

Gene Loss Analysis. Phylogenies from the Tree of Life Web Project were concatenated and used to interpret gene loss. However, it is important to consider that some of the older branches in the tree of life are still disputed. The animal phylogeny was broken out into two panels illustrating: a the evolution of mammals from vertebrates and b the evolution of vertebrates from animals. To assess gene loss, the number of ACY3/ASPA homologues in a given taxonomic lineage were compared to the number of organisms with >‚ÄČ5000 proteins deposited in public databases. ACY3/ASPA homologues are consistently found in the deuterostome lineage, but are missing from some well-sequenced sister taxa like arthropods and nematodes. There are inadequate levels of genome sequence data at key taxonomic levels to enable the delineation of the relative contribution of LGT, gene loss, and rate variation for ASPA/ACY3 homologues

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