Fig. 6. (A) Control zic2 expression; bracket indicates LNE domain. (B)
Overexpression of six1-WT expands the zic2 LNE domain
(bracket). (C) Six1 knock-down expands the zic2 LNE domain (bracket).
(D) Control dlx6 expression. (E) Overexpression of six1-WT
moves the dlx6 stripe laterally (arrow), and in some cases eliminates
expression in places (arrowheads, inset). (F) Six1 knockdown reduces the
lateral dlx6 stripe (arrow). (G) Overexpression of sox2
reduces six1 (arrow). (H,I) Overexpression of foxD3 (H)
reduces six1 (arrow) and (I) expands zic2 LNE expression
(arrow). (J,K) Over-expression of zic2 (J) reduces six1
(arrow) and (K) expands foxD3 (arrow). (L) Over-expression of
dlx5 reduces six1 (arrow). mRNAs were injected on left-hand
side; right-hand side is internal control.