Title:Metabolic variation between japonica and indica rice cultivars as revealed by non-targeted metabolomics.
Author：Chaoyang Hu ，Jianxin Shi, Sheng Quan, Bo Cui, Sabrina Kleessen, Zoran Nikoloski,Takayuki Tohge, Danny Alexander, Lining Guo, Hong Lin, Jing Wang, Xiao Cui, Jun Rao, Qian Luo, Xiangxiang Zhao, Alisdair R. Fernie & Dabing Zhang.
Journal: Scientific Reports
Keywords: cancer、cancer diagnosis、diagnostic biomarkers、lipidomics、liquid chromatogr-aphy-mass spectrometry、NMR spectroscopy、prognostic biomarkers、untargeted metabolon-mics targeted metabolomics.
Seed metabolites are critically important both for plant development and human nutrition; however, the natural variation in their levels remains poorly characterized. Here we profiled 121 metabolites in mature seeds of a wide panel Oryza sativa japonica and indica cultivars, revealing correlations between the metabolic phenotype and geographic origin of the rice seeds. Moreover, japonica and indica subspecies differed significantly not only in the relative abundances of metabolites but also in their corresponding metabolic association networks. These findings provide important insights into metabolic adaptation in rice subgroups, bridging the gap between genome and phenome, and facilitating the identification of genetic control of metabolic properties that can serve as a basis for the future improvement of rice quality via metabolic engineering.