EphrinB2 does not control migration of MN. A/ Heat map representation of the position, in the dorsoventral and mediolateral axes, of LMCm and LMCl neurons in the ventral horn of the spinal cord, from control (n = 13) and Efnb2
cKO (n = 11) E13 embryos. B/ Nuclei density of LMCm (a, c) and LMCl (b, d) plotted against distance from the reference point in the dorsoventral (a, b) and mediolateral (c, d) axes, in control (blue lines) and Efnb2
cKO (red lines) embryos. c/ Mean distance with the highest nuclei density for LMCm and LMCl neurons (a) Standard deviation of distances with highest nuclei density (b) Error bars indicate s.e.m.; ns = non significant (unpaired two-sample t-tests).