Fig. 1. Molecular characterization of the Arabidopsis CLASP gene. (A) The Arabidopsis CLASP gene consists of 20 exons and 19 introns. The positions of T-DNA insertions of the three alleles are indicated with arrowheads. (B) RT-PCR analysis of AtCLASP expression in the clasp mutant alleles. Elongation Factor 1
(EF1) was used as a control for RNA extraction and amplification. (C) AtCLASP:GUS expression in the shoot.