Is auxin involved in the induction of genetic instability in barley homeotic double mutants

摘要: The triggers of genetic instability in barley homeotic double mutants are tweaky spike -type mutations associated with an auxin imbalance separate spike phytomeres. Barley spike;Hooded (tw;Hd) are characterized by inherited and flower development, which is absent the single parental constituents. aim present study was to show that trigger tw mutations, developing spikes. Their pleiotropic effects on genes related spike/flower development may cause mutants. four double-mutant groups composed different mutant alleles showed arose only if allele a constituent Application inhibitors 2,4-dichlorophenoxyacetic acid (2,4-D) demonstrated relationship phenotype imbalance. 2,4-D induced phenocopies mutation wild-type plants rescued phenotypes three allelic differential display (dd-PCR) method allowed identification several putative candidate be responsible for initiation variations their expression results linked caused one constituents (tw). relation studied first time. A matrocliny also observed.