Supplementary Figure 1: NFIA and Sox10 expression during OLP development

NFIA is co-expressed with Sox10 in the spinal cord at E12.5 (B). NFIA is expressed in OLPs as demonstrated by co-expression with Sox10 (C, filled arrows) at E18.5, but not markers of mature OLs MBP (D, E) or PLP (F, G), denoted by unfilled arrows. These expression dynamics are summarized schematically in A. Sox10 is co-expressed with Glast::dsRed (H) and Olig2 (I) in the VZ at E12.5.