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Identification of key gene networks controlling monoterpene biosynthesis during grape ripening by integrating transcriptome and metabolite profiling

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Horticultural Plant Journal 2023年第5期9卷 931-946页

作者： Xiangpeng Leng Jiameng Cong Lixia Cheng Haoliang Wan Yuanxia Liu Yongbing Yuan Jinggui Fang Institute of Grape Science and Engineering College of HorticultureQingdao Agricultural UniversityQingdaoShandong 266109China Engineering Laboratory of Genetic Improvement of Horticultural Crops of Shandong Province College of HorticultureQingdao Agricultural UniversityQingdaoShandong 266109China Laboratory of Quality&Safety Risk Assessment for Fruit(Qingdao) Ministry of Agriculture and Rural AffairsNational Technology Centre for Whole Process Quality Control of FSEN Horticultural Products(Qingdao)Qingdao Agricultural UniversityQingdaoShandong 266109China

monoterpenes are typical aroma components of muscat grape cultivars,providing pleasant floral and fruity aromas to grapes and ***,the molecular mechanism of monoterpene biosynthesis between muscat and non-muscat grape remains ***,the muscat grape cultivar‘Jumeigui’and the non-muscat grape cultivar‘Kyoho’were chosen as plant materials for a comprehensive transcriptome and metabolite *** gas chromatography-mass spectrometry(GC-MS)analysis demonstrated that a total of 27 and 23 monoterpene compounds were identified and quantified in the‘Jumeigui’and‘Kyoho’grape,respectively.‘Jumeigui’grape accumulated significantly higher concentrations of monoterpenes than‘Kyoho’***,geraniol,linalool,geranic acid,and β-citronellol might be important odorants contributing to the floral character of the‘Jumeigui’grape due to the high levels odor activity values(OAVs).Transcriptome analysis demonstrated that the expression profiles of VvDXS,***1,Vv TPS-b/g showed a positive correlation with monoterpene accumulation in *** addition,the expression patterns of the genes involved in jasmonic acid(JA)synthesis and signal were also positively correlated with monoterpene *** these results will help guide the functional verification of candidate genes related to monoterpene biosynthesis,as well as identify the master transcriptional and hormonal regulators of this pathway in grapes.

关键词： Grape Muscat monoterpene Transcriptome monoterpene biosynthesis

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