VvSWEET10 Mediates Sugar Accumulation in Grapes
AbstractSugar accumulation is a critical event during grape berry ripening that determines the grape market values. Berry cells are highly dependent on sugar transporters to mediate cross-membrane transport. However, the role of sugar transporters in improving sugar accumulation in berries is not well established in grapes. Herein we report that a Sugars Will Eventually be Exported Transporter (SWEET), that is, VvSWEET10, was strongly expressed at the onset of ripening (véraison) and can improve grape sugar content. VvSWEET10 encodes a plasma membrane-localized transporter, and the heterologous expression of VvSWEET10 indicates that VvSWEET10 is a hexose-affinity transporter and has a broad spectrum of sugar transport functions. VvSWEET10 overexpression in grapevine calli and tomatoes increased the glucose, fructose, and total sugar levels significantly. The RNA sequencing results of grapevine transgenic calli showed that many sugar transporter genes and invertase genes were upregulated and suggest that VvSWEET10 may mediate sugar accumulation. These findings elucidated the role of VvSWEET10 in sugar accumulation and will be beneficial for the improvement of grape berry quality in the future. View Full-Text
- Supplementary File 1:
ZIP-Document (ZIP, 9440 KB)
Share & Cite This Article
Zhang, Z.; Zou, L.; Ren, C.; Ren, F.; Wang, Y.; Fan, P.; Li, S.; Liang, Z. VvSWEET10 Mediates Sugar Accumulation in Grapes. Genes 2019, 10, 255.
Zhang Z, Zou L, Ren C, Ren F, Wang Y, Fan P, Li S, Liang Z. VvSWEET10 Mediates Sugar Accumulation in Grapes. Genes. 2019; 10(4):255.Chicago/Turabian Style
Zhang, Zhan; Zou, Luming; Ren, Chong; Ren, Fengrui; Wang, Yi; Fan, Peige; Li, Shaohua; Liang, Zhenchang. 2019. "VvSWEET10 Mediates Sugar Accumulation in Grapes." Genes 10, no. 4: 255.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.