A Membrane-Bound NAC-Like Transcription Factor OsNTL5 Represses the Flowering in Oryza sativa

Frontiers in Plant Science
Siyi GuoToshiro Ito

Abstract

In spite of short-day (SD) nature, rice (Oryza sativa) shares a conserved photoperiodic network for flowering control with long-day plants like Arabidopsis thaliana. Flowering or heading is an important agronomic trait in rice. NAC transcription factors (TFs) are well-conserved and one of the largest families of plant TFs. However, their function in flowering or heading time is not well-known yet. A preferential expression of a membrane-bound NAC-like TF OsNTL5 in developing leaves and panicles of rice indicated to us its putative role in flowering. To examine its function, three independent constructs was generated, one with a deletion in the C terminus membrane-spanning domain (OsNTL5∆C), OsNTL5∆C fused with the SRDX transcriptional repressor motif and OsNTL5∆C used with the VP16 activation domain under the Ubiquitin promoter to produce the overexpressing lines OsNTL5∆C, OsNTL5∆C-SRDX, and OsNTL5∆C-VP, respectively in rice. The OsNTL5∆C-VP line showed an early-flowering phenotype. In contrast to this, the plants with OsNTL5∆C and OsNTL5∆C-SRDX showed a very strong late-flowering phenotype, suggesting that OsNTL5 suppresses flowering as a transcriptional repressor. The protein subcellular localization assay suggested that N-te...Continue Reading

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Citations

May 23, 2020·International Journal of Molecular Sciences·Xinpeng ZhaoSuoping Li
Apr 18, 2019·Nature Communications·Hao LiuChun-Peng Song
Jun 12, 2020·BMC Plant Biology·Xiaohui QinChun-Peng Song
Jan 8, 2020·International Journal of Molecular Sciences·Xuan Lan Thi HoangNguyen Phuong Thao
Dec 19, 2019·Frontiers in Plant Science·Yonghong ZhangLanlan Zheng
Feb 12, 2021·Plant Science : an International Journal of Experimental Plant Biology·Jinlan FangMuqing Zhang
Nov 2, 2020·Journal of Experimental Botany·Yang XiangAying Zhang
May 10, 2021·Plant Physiology and Biochemistry : PPB·Songlin ZhangXiping Wang

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Methods Mentioned

BETA
transgenic
PCR
confocal microscopy
ChIP
immunoprecipitation

Software Mentioned

MEGA
eFP browser

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