水稻 stunt lemma palea 1 突變對偶基因的功能探討

The rice stunted lemma/palea (slp) mutant displays dwarf, shorten panicle length, seriously degenerated lemma/palea, and sterility. Previous study suggested that a missense mutation at the sixth amino acid of the OsSPL16 protein was likely responsible for the slp mutant phenotypes. The current study showed that overexpression of the wild-type OsSPL16 allele in the slp/slp and Slp/slp mutants was unable to convert the slp mutant phenotype to normal. However, introduction of the mutant OsSPL16 allele into a normal rice cultivar resulted in the slp mutant phenotypes displayed in the transgenic plants. These results concluded the missense mutation of OsSPL16 is the slp mutant allele and a neomorph allele which affects plant height and development of inflorescence and spikelet.