Long Qiyuan, Zhang Changjian, Zhu Hui, Zhou Yutong, Liu Shuo, Liu Yanchen, Ma Xuemin, An Wei, Zhou Jun, Zhao Jianhua, Zhang Yuanyuan, Jin Cheng
School of Breeding and Multiplication (Sanya Institute of Breeding and Multiplication), Hainan University, Sanya, China.
School of Tropical Agriculture and Forestry, Hainan University, Haikou, Hainan, China.
Front Plant Sci. 2024 Apr 26;15:1392175. doi: 10.3389/fpls.2024.1392175. eCollection 2024.
Wolfberry (, of the family Solanaceae) has special nutritional benefits due to its valuable metabolites. Here, 16 wolfberry-specific metabolites were identified by comparing the metabolome of wolfberry with those of six species, including maize, rice, wheat, soybean, tomato and grape. The copy numbers of the riboflavin and phenyllactate degradation genes () and () were lower in wolfberry than in other species, while the copy number of the phenyllactate synthesis gene () was higher in wolfberry, suggesting that the copy number variation of these genes among species may be the main reason for the specific accumulation of riboflavin and phenyllactate in wolfberry. Moreover, the metabolome-based neighbor-joining tree revealed distinct clustering of monocots and dicots, suggesting that metabolites could reflect the evolutionary relationship among those species. Taken together, we identified 16 specific metabolites in wolfberry and provided new insight into the accumulation mechanism of species-specific metabolites at the genomic level.
枸杞（茄科）因其有价值的代谢产物而具有特殊的营养益处。在此，通过比较枸杞与玉米、水稻、小麦、大豆、番茄和葡萄六种物种的代谢组，鉴定出16种枸杞特异性代谢产物。枸杞中核黄素和苯乳酸降解基因（）和（）的拷贝数低于其他物种，而枸杞中苯乳酸合成基因（）的拷贝数较高，这表明这些基因在物种间的拷贝数变异可能是枸杞中核黄素和苯乳酸特异性积累的主要原因。此外，基于代谢组的邻接树揭示了单子叶植物和双子叶植物的明显聚类，表明代谢产物可以反映这些物种之间的进化关系。综上所述，我们在枸杞中鉴定出16种特异性代谢产物，并在基因组水平上为物种特异性代谢产物的积累机制提供了新的见解。
