|
Fig. 2 Expression of hoxa genes in wild-type and syu pectoral fin buds. Wholemount in situ hybridizations. Anterior is to the left and distal is to the top. (A,B,E,F,I,J,M,N) 32 hour pectoral fin buds; (C,D,G,H,K,L,O,P) 38 hour pectoral fin buds. (A,C,E,G,I,K,M,O) Wildtype fin buds; (B,D,F,H,J,L,N,P) syu fin buds. (A-D) hoxa-9 RNA; (E-H) hoxa-10 RNA; (I-L) hoxa-11 RNA; (M-P) hoxa- 13 RNA. At 32 hours, hoxa- 13 is not expressed in syu mutant buds, while hoxa-9 and hoxa-11 are expressed normally and hoxa-10 shows a partial reduction. At 38 hours, only a strong proximal central expression of hoxa-10 and hoxa-11 and a weak expression of hoxa-9 is detectable in syu mutant buds.