title: Genetic analysis of the metabolome exemplified using a rice population.
abstract: Plant metabolites are crucial for both plant life and human nutrition. Despite recent advance in metabolomics, the genetic control of plant metabolome remains largely unknown. Here, we performed a genetic analysis of the rice metabolome that provided over 2,800 highly resolved metabolic quantitative trait loci for 900 metabolites. Distinct and overlapping accumulation patterns of metabolites were observed and complex genetic regulation of metabolism was revealed in two different tissues. We associated 24 candidate genes to various metabolic quantitative trait loci by data mining, including ones regulating important morphological traits and biological processes. The corresponding pathways were reconstructed by updating in vivo functions of previously identified and newly assigned genes. This study demonstrated a powerful tool and provided a vast amount of high-quality data for understanding the plasticity of plant metabolome, which may help bridge the gap between the genome and phenome.
authors.affiliation: National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), College of Life Science and Technology, and Key Laboratory of Horticultural Plant Biology (Ministry of Education), Huazhong Agricultural University, Wuhan 430070, China.
authors.forename: Liang
authors.initials: L
authors.lastname: Gong
authors.forename: Wei
authors.initials: W
authors.lastname: Chen
authors.forename: Yanqiang
authors.initials: Y
authors.lastname: Gao
authors.forename: Xianqing
authors.initials: X
authors.lastname: Liu
authors.forename: Hongyan
authors.initials: H
authors.lastname: Zhang
authors.forename: Caiguo
authors.initials: C
authors.lastname: Xu
authors.forename: Sibin
authors.initials: S
authors.lastname: Yu
authors.forename: Qifa
authors.initials: Q
authors.lastname: Zhang
authors.forename: Jie
authors.initials: J
authors.lastname: Luo
mesh_terms: D000383:Agriculture / Q000379:methods*; D001947:Breeding / Q000379:methods*; D002874:Chromosome Mapping; D017931:DNA Primers / Q000235:genetics; D017343:Genes, Plant / Q000235:genetics*; D055442:Metabolome / Q000235:genetics*; D012275:Oryza / Q000235:genetics*; D040641:Quantitative Trait Loci / Q000235:genetics*
chemical_list: D017931:DNA Primers
keywords: Oryza sativa; gene function; metabolic profiling; recombinant inbred line