Expression of brain regionalization genes and her genes in her5 mutant embryos. Embryos from heterozygous mating (her5+/Δ8) were examined for the expression of MHB‐forming genes and her genes at the bud stage by WISH, followed by genotyping. Open arrowheads show weak downregulation. See the legends to Figures 1 and 3 for abbreviations. Numbers of the embryos with the indicated expression patterns and total scored embryos are shown in the bottom‐right. her5+/− embryos were indistinguishable from her5+/+ embryos. Thus, both were scored together and referred to as her5+/. Images for her5+/+ embryos are shown as representatives. Scale bar, 200 μm.
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