Elucidation of the Flavor Aspects and Flavor-Associated Genomic Regions in Bottle Gourd (Lagenaria siceraria) by Metabolomic Analysis and QTL-seq

文献类型： 外文期刊

第一作者： Wang, Ying

作者： Wang, Ying;Li, Yanwei;Wu, Xiaohua;Wu, Xinyi;Feng, Zishan;Wang, Jian;Wang, Baogen;Lu, Zhongfu;Li, Guojing;Wu, Xinyi;Li, Guojing

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关键词： amino-acid-related pathway; flavor-associated gene; flavor variation; metabolite profiling

期刊名称：FOODS （ 影响因子：5.561； 五年影响因子：5.94 ）

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年卷期： 2022 年 11 卷 16 期

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收录情况： SCI

摘要： Bottle gourd (Lagenaria siceraria) is a commercially important cucurbitaceous vegetable with health-promoting properties whose collections and cultivars differ considerably in their flavor aspects. However, the metabolomic profile related to flavor has not yet been elucidated. In the present study, a comprehensive metabolite analysis revealed the metabolite profile of the strong-flavor collection "J120" and weak-flavor collection "G32". The major differentially expressed metabolites included carboxylic acids, their derivatives, and organooxygen compounds, which are involved in amino acid biosynthesis and metabolism. QTL-seq was used to identify candidate genomic regions controlling flavor in a MAGIC population comprising 377 elite lines. Three significant genomic regions were identified, and candidate genes likely associated with flavor were screened. Our study provides useful information for understanding the metabolic causes of flavor variation among bottle gourd collections and cultivars. Furthermore, the identified candidate genomic regions may facilitate rational breeding programs to improve bottle gourd quality.

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