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杨树EBB1和EBB3正向调控冬季休眠后的发芽

发布时间:2021-02-23 16:50 作者:admin 来源:未知 点击: 字号:

背景+问题Bud-break is an economically and environmentally important process in trees and shrubs from boreal and temperate latitudes, but its molecular mechanisms are poorly understood. 

 

主要研究:Here, we show that two previously reported transcription factors, EARLY BUD BREAK 1 (EBB1) and SHORT VEGETATIVE PHASE-Like (SVL) directly interact to control bud-break. 

 

结果1-EBB1与SVLEBB1 is a positive regulator of bud-break, whereas SVL is a negative regulator of bud-breakEBB1 directly and negatively regulates SVL expression

 

结果2-EBB1与SVL下游EBB3:We further report the identification and characterization of the EBB3 gene. EBB3 is a temperature-responsive, epigenetically-regulated, positive regulator of bud-breakthat provides a direct link to activation of the cell cycle during bud-break. EBB3 is an AP2/ERF transcription factor that positively and directly regulates CYCLIND3.1 gene. 

 

结论:Our results reveal the architecture of a putative regulatory module that links temperature-mediated control of bud-break with activation of cell cycle.
 



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