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Fig. 4. Expression of BEL1 and ANT in ino-2, nzz-2 ino-2. (A-D) BEL1 expression in ino-2. (E-H) ANT expression in ino-2. (I-L) ANT expression in nzz-2 ino-2. (M,N) ANT expression in nzz-2. (O) ANT expression in bel1-1460. (P) BEL1 expression in ant-72F5. Stages: (E,I) 1-I/II; (A,F,J,M) 2-I; (B,G,N) 2-II; (C,K) 2-III; (D,H,O,P) 2-IV; (L) 3-IV. Note the presence of BEL1 expression at the site of outer integument initiation in ino-2 (arrows in B, C and D). Around stage 2-IV, an absence of ANT expression can be observed at the site of outer integument initiation in ino-2 (arrows in H). No strong spot of ANT expression can be detected in nzz-2 ino-2 (arrow in K). Note the presence of BEL1 expression in ant-72F5 (P, arrow) and ANT expression in bel1-1460 (O, arrow). Scale bars: 20 µm.