AqFL1 and AqSOC1 in situ expression patterns. AqFL1 expression in four-week (A) and six-week (B) vernalized apices. AqSOC1 expression in a transverse section of a post-vernalization peduncle (C), a longitudinal section of a post-vernalization inflorescence (D), and a four-week vernalized apex (E). Ap = apical meristem, Ax = axillary meristem, b = bract, Lax = leaf axillary meristem, lf = leaf. Scale bar = 100 μm A-C; Scale bar = 200 μm D, E.