Metabolomics reveals variation and correlation among different tissues of olive (Olea europaea L.)

作   者：Rao Guodong#, Liu xiaoxia, Zha Weiwei, Wu Wenjun, Zhang Jianguo *.
期刊名称：Biology open
影响因子：2.095
卷 期 号：6
页     码：1317-1323
关键词：Metabolome, Olive, Different tissue, ANOVA, Metabolite-metabolite, Correlation
论文摘要：
Metabolites in olives are associated with nutritional value and
physiological properties. However, comprehensive information
regarding the olive metabolome is limited. In this study, we
identified 226 metabolites from three different tissues of olive using
a non-targeted metabolomic profiling approach, of which 76 named
metabolites were confirmed. Further statistical analysis revealed that
these 76 metabolites covered different types of primary metabolism
and some of the secondary metabolism pathways. One-way analysis
of variance (ANOVA) statistical assay was performed to calculate the
variations within the detected metabolites, and levels of 65
metabolites were differentially expressed in different samples.
Hierarchical cluster analysis (HCA) dendrograms showed variations
among different tissues that were similar to the metabolite profiles
observed in new leaves and fruit. Additionally, 5776 metabolitemetabolite
correlations were detected by a Pearson correlation
coefficient approach. Screening of the calculated correlations
revealed 3136, 3025, and 5184 were determined to metabolites
and had significant correlations in three different combinations,
respectively. This work provides the first comprehensive metabolomic
of olive, which will provide new insights into understanding the olive
metabolism, and potentially help advance studies in olive metabolic
engineering.