Figure 3

The space of lineage-specific QTL effects in a three taxa comparison. (a) Lines emanating from a given point, representing a triplet of estimates, perpendicularly intercept axes at their respective lineage-specific QTL estimates (see text). (b) There are six fundamental divisions of this space, and for each, the most parsimonious phylogenies of QTL evolution is shown (hashes denote changes of QTL; −denotes a negative QTL effect, +denotes a positive QTL effect; m=M. micranthus, g=M. guttatus, p=M. platycalyx).