›› 2019, Vol. 31 ›› Issue (3): 401-407.DOI: 10.3969/j.issn.1004-1524.2019.03.08

• Horticultural Science • Previous Articles     Next Articles

Identification and expression analysis of STS gene family in grape

CHEN Hongqiang1, XIA Hui1, WANG Jin1, DENG Qunxian1, LIANG Dong1, LYU Xiulan1,*, TANG Liping2   

  1. 1. College of Horticulture, Sichuan Agricultural University, Chengdu 611130, China;
    2. Agricultural Bureau of Qianfeng District, Guang'an 638019, China
  • Received:2018-08-30 Online:2019-03-25 Published:2019-04-08

Abstract: Stilbenes, such as resveratrol, are postulated to be involved in the health benefits for human and associated with stresses resistance in plant. Stilbene synthase (STS) is key enzyme and responsible for resveratrol biosynthesis. To explore the expression characteristics of STS gene family in grape, candidate STS genes were screened by bioinformatics, expression patterns of STS genes were detected during the development of fruits and leaves. The results showed that there were 48 STS genes identified in whole grape genomics and showed cluster distribution on chromosomes 10 and 16. Thirty-two out of these 48 STS genes could code intact amino acid sequence for STS proteins with 392 aa. These 32 potentially functional STS genes were divided into 3 groups base on the similarity analysis. Although diverse expression patterns of selected STS genes were displayed during the development of berries, a majority of them indicated higher expression level during 20-40 and 70-80 days after full bloom. Most of STS genes had higher expression level in mature leaves or senescent leaves than that of in young leaves. These results provided a basis for functional study of STS gene family in grape during the development of berries and leaves.

Key words: grape, stilbene synthases, resveratrol, gene expression

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