Abstract
Tartary buckwheat (Fagopyrum tataricum, TB) is rich in bioactive flavonoids, which have a variety of biological activities (Ghorbani, 2017). Jasmonates (JAs) are essential phytohormones, which play key roles in regulating the formation of numerous secondary metabolites, including flavonoids rutin (Zhou and Memelink, 2016; Li et al., 2019). It has been reported that JAs could induce flavonoids accumulation and identified a class of JAs-responsive R2R3-MYB TFs, such as FtMYB11, a repressor of rutin biosynthesis in TB (Zhang et al., 2018; Zhou et al., 2017). JAs leads to FtMYBs degradation by 26S proteasome pathway (Zhang et al., 2018). However, the posttranslational regulation of these FtMYBs has not been reported.
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