Integrated multi-omics analysis of developing‘Newhall’orange and its glossy mutant provide insights into citrus fragrance formation  

作　　者：Haoliang Wan Xiaoliang Zhang Ping Wang Haiji Qiu Yafei Guo Yunjiang Cheng Weiwei Wen 

机构地区：[1]Key Laboratory of Horticultural Plant Biology(MOE),College of Horticulture and Forestry Sciences,Huazhong Agricultural University,Wuhan 430070 China

出　　处：《Horticultural Plant Journal》2022年第4期435-449,共15页园艺学报（英文版）

基　　金：financed by the National Natural Science Foundation of China (31772261);the Huazhong Agricultural University Scientific & Technological Self-Innovation Foundation (Program No.2017RC002) to Dr. Weiwei Wen

摘　　要：Sesquiterpene valencene is dominant in flavedo tissues of sweet oranges and imparts a unique woody aroma.However,the interaction between the biosynthetic pathways of valencene and other nutritional compounds is less studied.Sesquiterpenoids were significantly accumulated in a previously reported glossy mutant of orange(MT)than the wild type(WT),especially valencene and caryophyllene.In addition,we identified several other pathways with variations at both the transcriptional and metabolic levels in MT.It’s interesting to found those upregulated metabolites in MT,such as eukaryotic lipids,kaempferol and proline also showed strong positive correlation with valencene along with fruit maturation while those down-regulated metabolites,such as phenylpropanoid coumarins and most of the modified flavonoids exhibited negative correlation.We then categorized these shifted pathways into the‘sesquitepenoid-identical shunt’and the sesquitepenoid-opposite shunt’and confirmed the classification result at transcriptional level.Our results provide important insights into the connections between various fruit quality-related properties.

关 键 词：Citrus sinensis(L.) Multi-omics SESQUITERPENOIDS Eukaryotic lipids Carbon flux Network 

分 类 号：S666.4[农业科学—果树学]