Widely Targeted Metabolomic Analysis Provides New Insights into the Effect of Rootstocks on Citrus Fruit Quality
文献类型： 外文期刊
作者： Wang, Min 1 ; Chen, Yang 2 ; Li, Shuang 1 ; Yu, Jianjun 1 ; Yang, Lei 1 ; Hong, Lin 1 ;
作者机构： 1.Chongqing Acad Agr Sci, Fruit Tree Res Inst, Chongqing 401329, Peoples R China
2.Chongqing Acad Agr Sci, Key Lab Evaluat & Utilizat Special Crops Germplasm, Minist Agr & Rural Affairs, Chongqing 401329, Peoples R China
3.Chongqing Acad Agr Sci, Biotechnol Res Inst, Chongqing 401329, Peoples R China
关键词： rootstock; late-maturing hybrid mandarin varieties; fruit quality; UPLC-MS/MS; metabolomics
期刊名称：METABOLITES （ 影响因子：3.4； 五年影响因子：4.0 ）
ISSN：
年卷期： 2024 年 14 卷 4 期
页码：
收录情况： SCI
摘要： The use of different rootstocks has a significant effect on the content of flavor components and overall fruit quality. However, little information is available about the metabolic basis of the nutritional value of citrus plants. In this study, UPLC-MS/MS (ultra-performance liquid chromatography-tandem mass spectrometry) was performed to analyze the metabolites of three late-maturing hybrid mandarin varieties ('Gold Nugget', 'Tango' and 'Orah') grafted on four rootstocks ('Trifoliate orange', 'Carrizo citrange', 'Red tangerine' and 'Ziyang Xiangcheng'). A total of 1006 metabolites were identified through OPLS-DA (Orthogonal Partial Least Squares-Discriminant Analysis) analysis. KEGG (Kyoto Encyclopedia of Genes and Genomes) analysis revealed the most critical pathways among the different pathways associated with genes grafted on the four rootstocks that were differentially activated, including tryptophan metabolism and sphingolipid metabolism in 'Gold Nugget'; tryptophan metabolism, phenylpropanoid biosynthesis and sphingolipid metabolism in 'Tango'; and pantothenate and CoA biosynthesis- and photosynthesis-related biosynthesis in 'Orah'. A considerable difference between the different rootstocks was also observed in the accumulation of lipids, phenolic acids and flavonoids; further analysis revealed that the rootstocks regulated specific metabolites, including deacetylnomylinic acid, sudachinoid A, amoenin evodol, rutaevin, cyclo (phenylalanine-glutamic acid), cyclo (proline-phenylalanine), 2-hydroxyisocaproic acid, and 2-hydroxy-3-phenylpropanoic acid. The results of this study provide a useful foundation for further investigation of rootstock selection for late-maturation hybrid mandarin varieties.
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