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Fig. 6. Developmental changes in the expression of MSP mRNA in the trigeminal
ganglion and SCG, and in the maxillary target field and iris at different
developmental stages. The level of MSP mRNA relative to GAPDH mRNA in the
maxillary process at E12 and the mystacial whisker pad that develops from it
at E14, E16, E18 and P1. The level of MSP mRNA in whole trigeminal ganglia is
also shown at each of these ages. The mean and standard error of at least
three data points at each age are shown.