文献类型： 外文期刊
作者： Shi, Bin 1 ; Wu, Hongxia 1 ; Zheng, Bin 1 ; Qian, Minjie 1 ; Gao, Aiping 4 ; Zhou, Kaibing 1 ;
作者机构： 1.Hainan Univ, Coll Hort, Haikou 570228, Hainan, Peoples R China
2.Minist Educ, Engn Res Ctr Selecting & Breeding New Trop Crops, Haikou 570228, Hainan, Peoples R China
3.Key Lab Qual Regulat Trop Hort Crop Hainan Prov, Haikou 570228, Hainan, Peoples R China; Chinese Acad Trop Agr Sci, Minist Agr, Key Lab Trop Fruit Biol, South Subtrop Crops Res Inst, Zhanjiang 524091, Peoples R China
4.Chinese Acad Trop Agr Sci, Haikou 571100, Hainan, Peoples R China
5.Trop Crops Genet Resources Inst, Minist Agr, Key Lab Crop Gene Resources & Germplasm Enhanceme, Haikou 571100, Hainan, Peoples R China
关键词： mango; anthocyanin; light-independent; gene expression; MiMYB promoter
期刊名称：HORTICULTURAE （ 影响因子：2.923； 五年影响因子：3.582 ）
ISSN：
年卷期： 2021 年 7 卷 11 期
页码：
收录情况： SCI
摘要： Light dependent anthocyanin accumulation contributes to the red pigmentation of the fruit skin of mango (Mangifera indica L.). Light-independent pigmentation has also been reported, but remains poorly characterized. In this study, the pigmentation patterns in the skin of two red mango cultivars, 'Ruby' and 'Sensation', were evaluated. Metabolomic profiling revealed that quercetin-3O-glucoside, cyanidin-3-O-galactoside, procyanidin B1, and procyanidin B3 are the predominant flavonoid compounds in the skin of 'Ruby' and 'Sensation' fruit. Young fruit skin mainly accumulates flavonol and proanthocyanidin, while anthocyanin is mainly accumulated in the skin of mature fruit. Bagging treatment inhibited the biosynthesis of flovonol and anthocyanin, but promoted the accumulation of proanthocyanidin. Compared with 'Sensation', matured 'Ruby' fruit skin showed light red pigmentation at 120 days after full bloom (DAFB), showing a light-independent anthocyanin accumulation pattern. However, the increase of anthocyanin concentration, and the expression of key anthocyanin structural and regulatory genes MiUFGT1, MiUFGT3, and MiMYB1 in the skin of bagged 'Ruby' fruit versus 'Sensation' at 120 DAFB was very limited. There was no mutation in the crucial elements of MiMYB1 promoter between 'Ruby' and 'Sensation'. We hypothesize that the light-independent anthocyanin accumulation in the skin of mature 'Ruby' fruit is regulated by plant hormones, and that 'Ruby' can be used for breeding of new more easily pigmented red mango cultivars.
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