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Dynamic regulation of small RNAs in anthocyanin accumulation during blueberry fruit maturation

文献类型： 外文期刊

作者： Li, Xiaobai 1 ; Hong, Yan 2 ; Jackson, Aaron 1 ; Guo, Fangqi 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Hangzhou 310021, Peoples R China

2.Zhejiang Sci Tech Univ, Hangzhou 310018, Peoples R China

期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.38； 五年影响因子：5.134 ）

ISSN： 2045-2322

年卷期： 2021 年 11 卷 1 期

页码：

收录情况： SCI

摘要： Blueberry is rich in anthocyanins which accumulate during fruit maturation. Previous studies mostly focus on their translational/transcriptional regulation, but usually underestimate their post-transcriptional regulation, e.g. small RNAs. This study aimed to identify sRNAs and their potential pathways associated with anthocyanin biosynthesis. During three typical phases of fruit maturation (green, pink, and blue), we investigated dynamic changes of sRNA by deep sequencing sRNA and examined the interaction of sRNAs with their target genes by degradome and RLM-PCR. During maturation, up-regulation of VcmiRNA156 and VcmiR393 resulted in down-regulation of VcSPLs and VcTIR1/AFBs, respectively. An important gene of anthocyanin biosynthesis, VcDFR, was substantially down-regulated at both the mRNA and protein levels, and potentially responded to regulation of VcSPLs and VcTIR1/AFBs. Additionally, indole acetic acid (IAA) and abscisic acid (ABA) were involved in the regulation of anthocyanin biosynthesis by interacting with VcmiR393-TIR1/AFBs and VcmiRNA319-VcMYBs respectively. This information provides another insight into blueberry anthocyanin biosynthesis.

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