https://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
https://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
https://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
https://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
https://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

Acta Horticulturae Sinica ›› 2023, Vol. 50 ›› Issue (11): 2323-2336.doi: 10.16420/j.issn.0513-353x.2022-0919

• Genetic & Breeding·Germplasm Resources·Molecular Biology • Previous Articles     Next Articles

ABA and Ethylene Enhance the Expression VlMybA1 and VlMybA2 and Promote Pigmentation in the Berry Skin via Their Interaction

SUN Yushuai1, WANG Fei1, GUAN Xueqiang2, CHI Huiru1, YAO Yuxin1,*()   

  1. 1 State Key Laboratory of Crop Biology,Shandong Collaborative Innovation Center for Fruit & Vegetable Production with High Quality and Efficiency,College of Horticultural Science and Engineering,Shandong Agricultural Univerity,Tai’an,Shandong 271018,China
    2 Shandong Academy of Grape,Jinan 250100,China
  • Received:2023-04-21 Revised:2023-08-13 Online:2023-11-25 Published:2023-11-28
  • Contact: YAO Yuxin

Abstract:

The patterns of anthocyanin and ABA accumulation and ethylene production as well as the changes in expression of the key genes associated with their synthesis or regulation during berry development were studied using Kyoho grapes(Vitis vinifera × V. labrusca‘Kyoho’). Analysis of gene expression,promoter response and relative mRNA abundance showed that exogenous ABA treatment upregulated the expression level of VlMybA1 and VlMybA2,in which VlMybA1 was significantly expressed and promoted berry skin pigmentation;In contrast,exogenous ACC treatment increased the VlMybA2 expression and anthocyanin accumulation. The interaction between ABA and ethylene was found,100 μmol · L-1 ABA largely induced the production of endogenous ethylene,and 500 μmol · L-1 ACC significantly increased ABA content. Additionally,exogenous ABA treatment increased the relative mRNA abundance of VlMybA2 via ethylene. Collectively,ABA promoted berry skin pigmentation by upregulating the VlMybA1 expression directly and the VlMybA2 expression indirectly via ethylene.

Key words: grape, ABA, ethylene, VlMybA1, VlMybA2, anthocyanins