title: Relationship between sucrose metabolism and anthocyanin biosynthesis during ripening in Chinese bayberry fruit.
abstract: Two cultivars of Chinese bayberry fruit cvs 'Dongkui' and 'Biqi' with five different ripening stages were used to investigate the relationship between anthocyanin biosynthesis and sugar metabolism during fruit development. The results showed that anthocynin accumulated with the increased ripening stage in both of the two cultivars of bayberries. As compared to 'Biqi' fruit, a higher level of anthocyanin content was observed in 'Dongkui' fruit due to the increased expression of anthocyanin biosynthetic and regulatory genes especially MrCHI, MrDFR1, MrANS, and MrMYB1. Meanwhile, 'Dongkui' fruit also experienced higher levels of soluble sugars including sucrose, glucose, and fructose and expression of genes such as MrSPS1, MrSPS2, MrSPS3, MrINV1, MrINV2, and MrINV3 involved in sugar metabolism. Correlation analysis showed anthocyanin content had a significant relationship with all the three soluble sugars in bayberry fruit. Therefore, our results suggested that the higher anthocyanin content in 'Dongkui' fruit might be associated with its increased levels of soluble sugars.
authors.affiliation: Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, College of Biological and Environmental Sciences, Zhejiang Wanli University , No. 8, South Qian Hu Road, Ningbo, Zhejiang 315100, People's Republic of China.
authors.forename: Liyu
authors.initials: L
authors.lastname: Shi
authors.forename: Shifeng
authors.initials: S
authors.lastname: Cao
authors.forename: Jiarong
authors.initials: J
authors.lastname: Shao
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.forename: Yonghua
authors.initials: Y
authors.lastname: Zheng
authors.forename: Yueming
authors.initials: Y
authors.lastname: Jiang
authors.forename: Zhenfeng
authors.initials: Z
authors.lastname: Yang
mesh_terms: D000872:Anthocyanins / Q000096:biosynthesis*; D005638:Fruit / Q000737:chemistry / Q000235:genetics / Q000254:growth & development* / Q000378:metabolism; D018506:Gene Expression Regulation, Plant; D031641:Myrica / Q000737:chemistry / Q000235:genetics / Q000254:growth & development / Q000378:metabolism*; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism; D013395:Sucrose / Q000378:metabolism*
chemical_list: D000872:Anthocyanins; D010940:Plant Proteins; D013395:Sucrose
keywords: Chinese bayberry; anthocyanins; fructose; glucose; sucrose