Genetic Analysis of the Metabolome Exemplified Using a Rice Population

Overview

Journal Proc Natl Acad Sci U S A

Specialty Science

Date 2013 Nov 22

PMID 24259710

Citations 85

Authors

Liang Gong

Wei Chen

Yanqiang Gao

Xianqing Liu

Hongyan Zhang

Caiguo Xu

Sibin Yu

Qifa Zhang

Jie Luo

Affiliations

Soon will be listed here.

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.

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