Figure 2From: The evolutionary rate variation among genes of HOG-signaling pathway in yeast genomesThe phylogenetic tree showing the evolutionary relationships of the 10 yeast species studied. The black star shows the timing of the whole genome duplication (WGD). Gene duplication (black triangle), loss (black circle), and pseudogenization (black square) events detected in the HOG pathway across the yeast species were shown above each branch.Back to article page