Abstract
Higher plants make a shoot apical meristem, a root apical meristem, epidermis and vascular system during embryogenesis. Thus, embryogenesis is a process of making basic body plan, and biologically interesting processes such as generation of positional information, axis establishment and differentiation of organs and tissues occur successively during this period. In order to understand molecular mechanisms governing organ differentiation during embryogenesis, we screened organogenesis defective mutants from embryogenesis lethal mutant stocks of rice. Because these mutants are derived from Tos17 mutagenized line, we conducted linkage analysis using Tos17 probe. In one line with globular embryo phenotype, complete linkage between the genotype of the mutation and the presence of newly transposed Tos17 was observed and recovering flanking region revealed the causal gene of this mutation. In this presentation, we report the putative function of the gene product.
