AaMYB61-like and AabHLH137 jointly regulate anthocyanin biosynthesis in Actinidia arguta.

ABSTRACT:

Background

Red Actinidia arguta has recently become highly popular because of its red appearance resulting from anthocyanin accumulation, and has gradually become an important breeding direction. However, regulators involved in anthocyanin biosynthesis have not been fully characterized in A. arguta.

Results

Here, we demonstrated that a key R2R3-MYB transcription factor, AaMYB61-like, plays a crucial role in A. arguta anthocyanin biosynthesis. The RT-qPCR results revealed that transient overexpression of AaMYB61-like in A. arguta fruit at 90-100 DAFB significantly promoted anthocyanin biosynthesis, as did the gene expression levels of AaCHS, AaCHI, AaF3H, AaLDOX, and AaF3GT, whereas the result of VIGS revealed the opposite results in A. arguta fruit at 105-115 DAFB. A transcr

SUBMITTER: Song Z 

PROVIDER: S-EPMC11753137 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature