Journal article

Rice transcription factor MADS32 regulates floral patterning through interactions with multiple floral homeotic genes

Yun Hu, Li Wang, Ru Jia, Wanqi Liang, Xuelian Zhang, Jie Xu, Xiaofei Chen, Dan Lu, Mingjiao Chen, Zhijing Luo, Jiayang Xie, Liming Cao, Ben Xu, Yu Yu, Staffan Persson, Dabing Zhang, Zheng Yuan

JOURNAL OF EXPERIMENTAL BOTANY | OXFORD UNIV PRESS | Published : 2021

Abstract

Floral patterning is regulated by intricate networks of floral identity genes. The peculiar MADS32 subfamily genes, absent in eudicots but prevalent in monocots, control floral organ identity. However, how the MADS32 family genes interact with other floral homeotic genes during flower development is mostly unknown. We show here that the rice homeotic transcription factor OsMADS32 regulates floral patterning by interacting synergistically with E class protein OsMADS6 in a dosage-dependent manner. Furthermore, our results indicate important roles for OsMADS32 in defining stamen, pistil, and ovule development through physical and genetic interactions with OsMADS1, OsMADS58, and OsMADS13, and in..

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University of Melbourne Researchers

Grants

Awarded by National Transgenic Major Program


Awarded by National Natural Science Foundation of China


Awarded by Agriculture Research System of Shanghai, China


Awarded by Programme of Introducing Talents of Discipline to Universities (111 Project)


Awarded by ARC


Awarded by Novo Nordisk Laureate grants


Awarded by Villum Investigator


Funding Acknowledgements

We thank Guanghua He (Southwest University), Hajime Sakai (University of Delaware), and Yasuo Nagato (University of Tokyo) for providing mutants seeds.We also thank Hongli Lian (Shanghai Jiao Tong University) for technical assistance in the yeast three-hybrid assay.We are grateful for technical assistance provided by Jie Zong from NovelBio Company.This work was supported by grants from the National Transgenic Major Program (2016ZX08009-003); National Natural Science Foundation of China (31671260); Agriculture Research System of Shanghai, China (grant no. 202003), and China Innovative Research Team, Ministry of Education and the Programme of Introducing Talents of Discipline to Universities (111 Project, B14016), and SMC Morningstar Young Scholarship of Shanghai Jiao Tong University to ZY. SP acknowledges funding from ARC FT and DP grants (DP190101941; FT160100218), Villum Investigator (Project ID: 25915), and Novo Nordisk Laureate (NNF19OC0056076) grants.