PgMYB1 Positively Regulates Anthocyanin Accumulation by Activating PgGSTF6 in Pomegranate
文献类型： 外文期刊
作者： Wang, Zenghui 1 ; Yang, Xuemei 1 ; Wang, Chuanzeng 1 ; Feng, Lijuan 1 ; Yin, Yanlei 1 ; Li, Jialin 2 ;
作者机构： 1.Shandong Inst Pomol, Tai An 271000, Peoples R China
2.Univ Jinan, Sch Biol Sci & Technol, Jinan 250022, Peoples R China
关键词： anthocyanin; PgMYB1; PgGSTF6; pomegranate; transcriptional expression
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）
ISSN：
年卷期： 2023 年 24 卷 7 期
页码：
收录情况： SCI
摘要： The peel color of pomegranates is an important exterior quality that determines market value. Anthocyanins are biosynthesized in the cytosol and then transported to the vacuole for storage. However, the molecular mechanism that determines the color variation between red and white pomegranates remains unclear. In this study, we identified an R2R3-MYB protein (PgMYB1) that interacts with the PgGSTF6 promoter and regulates its transcriptional expression, thus promoting the accumulation of anthocyanins in pomegranate. The expression of PgMYB1 and PgGSTF6 was positively correlated with the anthocyanin content in red and white pomegranates. Further investigation showed that the knockdown of PgMYB1 in red pomegranate 'Taishanhong' (TSH), by the virus-induced gene-silencing system, inhibited anthocyanin accumulation. Together, our results indicate that PgMYB1 controls the transport of anthocyanin via PgGSTF6 and thus promotes anthocyanin accumulation in red pomegranates. Our results have a certain reference value for further clarifying the regulation of anthocyanin synthesis and transport in pomegranate fruits.
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