MONOCULM 3, an Ortholog of WUSCHEL in Rice, Is Required for Tiller Bud Formation. Issue 2 (20th February 2015)

• Record Type: Journal Article
• Authors: Lu, Zefu; Shao, Gaoneng; Xiong, Jinsong; Jiao, Yongqing; Wang, Jing; Liu, Guifu; Meng, Xiangbing; Liang, Yan; Xiong, Guosheng; Wang, Yonghong; Li, Jiayang
• Is Part Of: Journal of genetics and genomics. Volume 42:Issue 2(2015:Feb.)
• Page Start: 71
• Page End: 78
• Publication Date: 2015-02-20
• Subjects: MOC3 -- WUSCHEL -- Tiller bud formation -- Cytokinins -- Oryza sativa L; Genetics -- Periodicals; Genomics -- Periodicals; 576.505
• DOI: 10.1016/j.jgg.2014.12.005
• Languages: English
• ISSNs: 1673-8527

Abstract

Abstract: WUSCHEL ( WUS ) plays an essential role for the maintenance of meristem activity in dicots, but its function is still elusive in monocots. We isolated a new monoculm mutant, monoculm 3 ( moc3 ), in which a point mutation causes the premature termination of rice O . sativa WUS ( OsWUS ). Morphological observation revealed that the formation of tiller buds was disrupted in moc3 . MOC3 was localized in the nuclear and could interact with TOPLESS-RELATED PROTEINS (TPRs). The expression of MOC3 was induced by cytokinins and defection of MOC3 affected the expression of several two-component cytokinin response regulators, OsRRs and ORRs . Our results suggest that MOC3 is required for the formation of axillary buds and has a complex relationship with cytokinins.