Figure 4From: Different evolutionary histories of two cation/proton exchanger gene families in plantsPhylogeny of the SOS1 genes indicating few recent duplication events. The reconciled SOS1 tree obtained using NOTUNG v2.6, has a duplication/loss score of 13.0 and shows 8 independent gene duplication and 1 gene loss (not shown) events. All duplication events appear towards the terminal nodes of the tree indicating that these events occurred recently.Back to article page