Supplementary Figure 1: The FIN and FAB genes act separately from the meristem maturation pathway.
From: A cascade of arabinosyltransferases controls shoot meristem size in tomato
(a) Representative inflorescence from the compound inflorescence (s, defective in the homolog of Arabidopsis WUSCHEL HOMEOBOX 9)14 meristem maturation mutant showing extreme branching. (b,c) Double mutants of fab s (b) and fin s (c) show additive genetic relationships. Double mutants exhibit branching like the s single mutant and fasciation of the flowers like the fin and fab single mutants. Red arrows in b show greater branching in fab s double mutants compared to fab mutants alone. The inset shows a fasciated flower. (d) Representative highly branched inflorescences with cauliflower-like flowers from the anantha (an, defective in the homolog of the Arabidopsis F-box gene UNUSUAL FLORAL ORGANS)14 meristem maturation mutant. (e,f) fab an (e) and fin an (f) double mutants show additive phenotypes. Yellow arrows point to the base of each inflorescence. Insets with red circles show normal-sized meristems in an single mutants (d) and fasciated meristems in fab an (e) and fin an (f) double mutants. Scale bars, 1 cm.
