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作者:
作者: Zhang, Liang; Zhang, Fan; Liu, Fangbing; Shen, Jun; Wang, Jiaxuan; Jiang, Meng; Zhang, Dasheng; Yang, Pingfang; Chen, Ying*; Song, Shiyong*
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通讯作者: Chen, Ying; Song, Shiyong
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刊物名称: PLANT SCIENCE
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论文题目: The lotus NnFTIP1 and NnFT1 regulate flowering time in Arabidopsis
摘要:
摘要:

In higher plants, floral signals are mainly collected and transduced to FLOWERING LOCUS T (FT) in Arabidopsis and its orthologues. The movement of FT from leaves to the shoot apical meristem (SAM) is partially mediated by FT-INTERACTING PROTEIN1 (FTIP1). Although the functions of OsFTIP1 in rice and DOFTIP1 in orchid in FT transport have also been investigated, the FTIP1 homologue in lotus (Nelumbo nucifera Gaertn.), a type of horticultural plant with high economic and cultural value, has not been isolated, and the mechanism of NnFT1 transport has not been explored. Here, we revealed that NnFTIP1 mediates the transport of NnFT1 in ectopic transgenic lines in Arabidopsis. Overexpression of NnFTIP1 in the ftip1-1 background rescued the late flowering phenotype of ftip1-1, indicating that NnFTIP1 has a conserved function as FTIP1. NnFTIP1 and NnFT1 share similar tissue expression patterns and subcellular localization. NnFTIP1 and NnFT1 interact both in vitro and in vivo. In addition, NnFTIP1 affects NnFT1 transport from leaves to the SAM. Furthermore, we found that NnUOF8, a MYB-like transcription factor, directly regulates the expression of NnFTIP1. Our results suggest that the functions of FTIP1 and FT are conserved during evolution in flowering plants.

年: 2021
卷: 302
期:
页: 110677
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