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Figure 4 | BMC Evolutionary Biology

Figure 4

From: Extensive horizontal gene transfer, duplication, and loss of chlorophyll synthesis genes in the algae

Figure 4

Por gene tree: duplication of xenologous stramenopile/haptophyte por genes. Bottom half of the por gene tree outlined in Figure 3A. Branches colored by lineage, with symbols indicating origin of endosymbiont in dinoflagellate taxa whose ancestral plastid has been replaced (see legend). Posterior probabilities are shown above branches and bootstrap support are shown below branches. All dashed branches have less than 0.95 posterior probability. Scale bar indicates 0.3 amino acid substitutions per site. Arrows indicate the inferred horizontal gene transfer (HGT) of a por gene from prasinophytes to the stramenopiles, and the subsequent gene duplication (GD3) to create por1 and por2.

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