Transcriptome and Metabolome Studies on Pre-Harvest Nitrogen Impact on Fruit Yield and Quality of Peach (Prunus persica L.)
文献类型： 外文期刊
作者： Zhang, Yu 1 ; Guo, Jiying 1 ; Zhou, Xin 4 ; Zhao, Jianbo 1 ; Liu, Xin 1 ; Jiang, Quan 1 ; Ren, Fei 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Forestry & Pomol, Beijing 100093, Peoples R China
2.Minist Agr & Rural Affairs, Key Lab Biol & Genet Improvement Hort Crops North, Beijing 100093, Peoples R China
3.Beijing Engn Res Ctr Deciduous Fruit Trees, Beijing 100093, Peoples R China
4.China Agr Univ, Coll Hort, Dept Pomol, Beijing 100193, Peoples R China
关键词： peach; different nitrogen levels; different growth stages; transcriptome analysis; metabolome analysis
期刊名称：METABOLITES （ 影响因子：5.581； 五年影响因子：5.531 ）
ISSN：
年卷期： 2022 年 12 卷 10 期
页码：
收录情况： SCI
摘要： Pre-harvest nitrogen (N) application has been proven effective for improving fruit yield and quality. However, a full understanding of how differences in N availability/plant N status influence the transcriptome and metabolism underlying yield formation and quality remains elusive. Here, a combined analysis of the morpho-physiological qualities, transcriptome, and metabolite of peach plants was performed under different nitrogen levels at fruit pit hardening (PH) and fruit expansion (FE). Nitrogen fertilizer directly affected the yield, fruit quality, and metabolites of peach at different growth stages. RNA-Seq was used to analyze the influence of N levels at PH and FE in peach. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis showed that the differentially expressed genes (DEGs) focused on flavonoid biosynthesis and secondary metabolite biosynthetic processes. The differential metabolites among the different treatments were mainly involved in flavonoid metabolism. Transcriptome analysis showed that applying different nitrogen fertilizers at different growth stages of peach mainly affected the synthesis of flavonoids in fruit. Overall, these results suggest that the impacts of pre-harvest N application on fruit yield and quality differ between developmental stages. This research provides a full understanding of the metabolic processes underlying fruit growth and development in peach, providing a theoretical basis for the improvement of nitrogen use efficiency in peach trees.
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