Recent studies have shown that F-box proteins constitute a large family in eukaryotes and play pivotal roles in regulating various developmental processes in ***,their functions in monocots are still *** this study,we...
详细信息
Recent studies have shown that F-box proteins constitute a large family in eukaryotes and play pivotal roles in regulating various developmental processes in ***,their functions in monocots are still *** this study,we characterized a recessive mutant dwarf and deformedflowerl-1(ddf1-1) in *** mutant is abnormal in both vegetative and reproductive development,with significant size reduction in all organs except ***1 controls organ size by regulating both cell division and cell *** the ddf1-1 spikelet,the specification of floral organs in whorls 2 and 3 is altered,with most lodicules and stamens being transformed into glume-like organs and pistil-like organs,respectively;but the specification of lemma/palea and pistil in whorls 1 and 4 is not ***1 encodes an F-box protein anchored in nucleolus and is expressed in almost all vegetative and reproductive *** with the mutant floral phenotype,DDF1 positively regulates B-class genes OsMADS4/16,and negatively regulates pistil specification gene *** addition,DDF1 also negatively regulates the Arabidopsis LFY ortholog APO2,implicating a functional connection between DDF1 and ***,these results revealed that DDF1,as a newly identified F-box gene,is a crucial genetic factor with pleiotropic functions for both vegetative growth and floral organ specification in *** findings provide additional insights into the molecular mechanism controlling monocot vegetative and reproductive development.
暂无评论