Phenotypic Analysis and Gene Mapping of the Semi-Dwarf High-Tillering Mutant f2-132 in Rice COMPARATIVE PROTEOMIC ANALYSIS OF A HIGH-TILLERING DWARF MUTANT INDUCED BY SPACEFLIGHT AT DIFFERENT TILLERING STAGES Genetic Basis of the High-Tillering Dwarf Trait in the Rice DUS Test Standard Variety Cong’ai 2