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Figure 4 | BMC Evolutionary Biology

Figure 4

From: Evolution of a horizontally acquired legume gene, albumin 1, in the parasitic plant Phelipanche aegyptiaca and related species

Figure 4

ML estimate of dN and dS changes, and evolutionary constraint (dN/dS) through the history of albumin 1 sequences in broomrapes and their homologs in three related legume species. Branch lengths scaled by total number of substitutions. Because the total amount of evolutionary change on individual branches for closely related species can be very low (or even zero in some cases), changes have been pooled within several of the specific lineages.

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