株高是水稻重要的株型组成因子,水稻矮秆基因是株型改良的重要遗传基础,其大多参与植物内源激素赤霉素和油菜素内酯的合成或信号传导途径,一般具有“一因多效”的遗传性状表现,造成植株矮化的同时也会改变其他性状。通过对所构建的水稻突变体库进行大规模筛选,我们获得一个稳定遗传的矮秆突变体dtl1。与野生型相比,dtl1表现为 Plant height is an important plant type component of rice. The dwarf gene in rice is an important genetic basis for plant type improvement. Most of them are involved in the synthesis or signal transduction pathways of plant endogenous hormones GA3 and brassinosteroid, generally with “ A multi-effect ”performance of genetic traits, resulting in dwarf plants will also change other traits. Through large-scale screening of the constructed rice mutant library, we obtained a stable inheritance dwarf mutant dtl1. Dtl1 behaves as compared to the wild type