Phenotype of the antisense
cycA2;2 transformation in M.
truncatula. A, Callus formation and development of somatic
embryos transformed with the 35S-antisense
cycA2;2 (as) or with the binary vector (c). B,
Prolonged cultivation of the antisense somatic embryos. C, One
hundred-micrometer-thick longitudinal section through the meristem of a
somatic embryo. D, Development of secondary embryos on the primary one.
E, Embryos deriving from a single one. F, Aborted development of a
highly stressed plantlet. Bars = 20 mm in A; 1 mm in B, D, and E;
0.5 mm in C; and 2 mm in F.