Genetic interactions between bop1 bop2 and yab alleles. Photographs of dissected rosettes from 38-day-old (A) bop1-4 bop2-11 fil-8 (b1b2f), (B) bop1-4 bop2-11 yab3-2 (b1b2y3), (C) fil-8 yab3-2 (fy3), and (D) bop1-4 bop2-11 fil-8 yab3-2 (b1b2fy3) plants. Transverse sections of (E) yab3-2, (F) bop1-4 bop2-11 fil-8, (G) bop1-4 bop2-11 yab3-2, (H) fil-8 yab3-2, and (I and J) bop1-4 bop2-11 fil-8 yab3-2 leaf petioles. Dotted lines in A–D indicate the sectioned regions in F–J. Bars, 10 mm (for A–D) and 200 μm (for E–J).