摘要
With the rapid development of omics technologies during the last several decades,genomics,transcriptomics,and proteomics have been extensively used to characterize gene or protein functions in many organisms at the cell or tissue level.However,metabolomics has not been conducted in reproductive organs,with a focus on meiosis in plants.In this study,we adopted a nuclear magnetic resonance(NMR)-based metabolomics approach to reveal the metabolic profile of inflorescences from two Arabidopsis accessions,Columbia(Col)and Landsberg erecta(Ler),and several sterile mutants caused by meiosis defects.We identified 68 dominant metabolites in the samples.Col and Ler displayed distinct metabolite profiles.Interest-ingly,mutants with similar meiotic defects,such as Atrad51-3,Atrfc1-2,and Atpol2a-2,exhibited similar alterations in metabolites,including upregulation of energy metabolites and promotion of compounds related to maintenance of genomic stability,cytoplasmic homeostasis,and membrane integrity.The collective data reveal distinct changes in metabolites in Arabidopsis inflorescences between the Col and Ler wild type accessions.NMR-based metabolomics could be an effective tool for molecular phenotyping in studies of aspects of plant reproductive development such as meiosis.
基金
supported by grants from the National Science Foundation of China(31570314 and 31925005)
by funds from the State Key Laboratory of Genetic Engineering at Fudan University.
