title: Unequal genetic redundancy of rice PISTILLATA orthologs, OsMADS2 and OsMADS4, in lodicule and stamen development.
abstract: Two homologs of PISTILLATA have been identified in rice: OsMADS2 and OsMADS4. However, their roles in floral organ development are controversial. Here, we demonstrate that the genes show unequal redundancy of class B function. Although OsMADS2 plays an important role in lodicule development, OsMADS4 also supports the specification of lodicule identity. In contrast, the genes are roughly equally important in stamen development. Consistent with their redundant functions, both OsMADS2 and OsMADS4 interact with the unique rice AP3 ortholog SPW1.
authors: Hokuriku Research Center, National Agricultural Research Center, Niigata, 943-0193 Japan.
authors: Shan-Guo
authors: SG
authors: Yao
authors: Shinnosuke
authors: S
authors: Ohmori
authors: Mayumi
authors: M
authors: Kimizu
authors: Hitoshi
authors: H
authors: Yoshida
mesh_terms: D029681:Arabidopsis Proteins / Q000737:chemistry*; D035264:Flowers / Q000235:genetics* / Q000254:growth & development*; D020869:Gene Expression Profiling; D018506:Gene Expression Regulation, Plant; D026161:MADS Domain Proteins / Q000737:chemistry*; D012275:Oryza / Q000235:genetics* / Q000254:growth & development*; D010940:Plant Proteins / Q000235:genetics* / Q000378:metabolism; D011485:Protein Binding; D017386:Sequence Homology, Amino Acid; D020798:Two-Hybrid System Techniques
chemical_list: D029681:Arabidopsis Proteins; D026161:MADS Domain Proteins; C090225:PISTILLATA protein, Arabidopsis; D010940:Plant Proteins