Recent Advances of MYB Transcription Factors Involved in the Regulation of Flavonoid Biosynthesis
Flavonoids, widely existing in plant kingdom, are polyphenolic secondary metabolites. Flavonoids were proved to possess various bioactivities, such as antioxidant, anti-inflammatory, antivirus and anti-aging. MYB transcription factors play an important role in flavonoid biosynthesis, which can activate a few genes' co-expression. The regulation of flavonoid biosynthetic pathway by MYB transcription factors has been widely investigated and several MYB members have been identified in crop, ornamental, and model plants. Genetic transformation of the MYB transcription factor obtained from specific plants, can effectively improve the contents of flavonoids in the transgenic plants. A better knowledge of the regulatory mechanisms of the fiavonoid pathway is likely to favor the study of MYB transcription factors, and the utilization of MYB transcription factors of flavonoid secondary metabolism expanded a new aspect in genetic engineering.
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