A novel R2R3‐MYB transcription factor FaMYB5 positively regulates anthocyanin and proanthocyanidin biosynthesis in cultivated strawberries ( Fragaria × ananassa )
Sichuan Agricultural University · Institute of Pomology · +1 more institution
Abstract
Flavonoids have a major contribution to the fruit quality in cultivated strawberries and are regulated by MYB, bHLH and WD40 transcriptional factors. We reported here the identification of the FaMYB5, an R2R3-MYB transcription factor, which positively regulated the accumulation of anthocyanins and proanthocyanidins through the trans-activation of the F3'H and LAR. The strawberry FaEGL3 and FaLWD1/FaLWD1-like interact with the R2R3-FaMYB5 to form an MYB-bHLH-WD40 complex (MBW), enhancing the regulatory efficiency. The R2R3-FaMYB5 was constitutively expressed in various tissues and in fruits of different developmental stages, which was strikingly contrasting to the fruit-specific expression patterns of FaMYB10.…
Citation impact
- FWCI
- 32.71
- Percentile
- 100%
- References
- 76
Authors
13Topics & keywords
- Biology
- Proanthocyanidin
- Anthocyanin
- Fragaria
- MYB
- Transcription factor
- Food science
- Biosynthesis