Metabolomics analyses provide insights into the nutritional quality profiling in 95 avocado germplasms grown in China

作者：Hongbin Yang, Fuqiang Wang, Ying‐Qin Li, Yake Guo, Xiuhua Tang, Shuailei Gu, Haihong Chen, Chaohai Pang, Yanxia Li, Jiali Zhang, Weihong Ma, Jiashui Wang · 发表于：Food Chemistry X · 年份：2024 · DOI：10.1016/j.fochx.2024.101971 · 被引用次数：4 · 研究领域：Plant Physiology and Cultivation Studies、Horticultural and Viticultural Research、Postharvest Quality and Shelf Life Management

Avocado is widely grown in tropical and subtropical regions of China. Diverse germplasms have been generated through natural hybridization and selective breeding. Here, to screen high-quality avocado germplasms, we characterized the nutritional quality of 95 avocado germplasms grown in China based on metabolomics. The oil content of the 95 avocado germplasms was 2.18 %–16.60 % and followed a normal distribution. We further profiled nine fatty acids, 16 hydrolyzed amino acids, and eight mineral elements in avocado fruit, which varied widely among different germplasms. Correlation analysis revealed significant positive correlations between fatty acid components, as well as between amino acid components and between mineral elements. Clustering analysis and evaluation of the 95 avocado germplasms identified 14 germplasms with high nutritional quality. These findings provide a basis for evaluation of avocado fruit quality and utilization of high-quality avocado germplasms, as well as important implications for the breeding of avocado. • The nutritional quality of 95 avocado germplasms grown in China was investigated. • Oil content, fatty acid, hydrolyzed amino acid and mineral element were profiled. • Correlation analysis among fruit nutritional quality traits was performed. • Fourteen high-quality avocado germplasms were screened by comprehensive evaluation.