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Published on: April 12, 2018
AGAMOUS AND TERMINAL FLOWER controls floral organ identity and inflorescence development in Medicago truncatula
Butuo Zhu1, Hui Li1,2, Yifeng Hou3
1Biotechnology Research Institute, the Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
Abstract:
Angiosperms integrate a multitude of endogenous and environmental signals to control floral development, thereby ensuring reproductive success. Here, we report the identification of AGAMOUS AND TERMINAL FLOWER (AGTFL), a novel regulator of floral development in Medicago truncatula. Mutation of AGTFL led to the transformation of carpels and stamens into numerous sepals and petals and altered primary inflorescence identity. AGTFL encodes a nucleus-localized protein containing a putative Myb/SANT-like DNA-binding domain and a PKc kinase domain. Molecular and genetic analyses revealed that AGTFL regulates the transcription of MtAGs and MtTFL1 to control floral organ identity and inflorescence development.
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