Fig. 4From: The wright stuff: reimagining path analysis reveals novel components of the sex determination hierarchy in drosophila melanogaster Sex hierarchy expansion. a All genes expressed in the CEGS data were added to the baseline model one at a time to all possible paths and model fit was assessed using BIC. For each possible addition the regulatory relationship (arrows) has a parameter estimate (γ for exogenous → endogenous and β endogenous → endogenous). There were 754 genes with BIC values lower than the baseline. Some examples include: msl-2 downstream of Sxl b , Psa in between tra and fru c, and InR downstream of Sxl d Back to article page