Abstract
The woodland strawberry, Fragaria vesca, is a model plant for the diverse Rosaceae family, which contains many valuable fruit and ornamental crops. Light is an important external environment factor which influences all aspects of plant growth and development, including fruit ripening. Transcription regulation of light will provide insights into effect of light for fruit ripening. We treat strawberry fruit with dark or light, and by the RNA-Seq method, compare transcriptional level between dark-treated and light-treated strawberry fruits. Additionally, we detect anthocyanin and sugar accumulation in two-treated conditions of fruits. Moreover, we detect the protein change of FvMYB10, a key regulator of anthocyanin biosynthesis, under dark and light. Light can promote anthocyanin and soluble sugar accumulation in mature fruit, and also increases the expression of aroma-related genes and stabilizes FvMYB10 protein. Our findings reveal that light is essential for anthocyanin and sugar accumulation and regulates FvMYB10 at transcriptional level and post-translation level.
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