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桑葚不同果实发育阶段的代谢组学分析

钟秋珍 林旗华 张泽煌

钟秋珍,林旗华,张泽煌. 桑葚不同果实发育阶段的代谢组学分析 [J]. 福建农业学报,2024,39(9):1−8
引用本文: 钟秋珍,林旗华,张泽煌. 桑葚不同果实发育阶段的代谢组学分析 [J]. 福建农业学报,2024,39(9):1−8
ZHONG Q Z, LIN Q H, ZHANG Z H. Metabolomics analysis of mulberry fruits at different developmental stages [J]. Fujian Journal of Agricultural Sciences,2024,39(9):1−8
Citation: ZHONG Q Z, LIN Q H, ZHANG Z H. Metabolomics analysis of mulberry fruits at different developmental stages [J]. Fujian Journal of Agricultural Sciences,2024,39(9):1−8

桑葚不同果实发育阶段的代谢组学分析

基金项目: 福建省属公益类科研院所基本科研专项(2020R1028002)
详细信息
    作者简介:

    钟秋珍(1973 —),女,高级农艺师,主要从事果树良种选育与栽培研究,E-mail:3249015@qq.com

    通讯作者:

    张泽煌(1973 —),男,研究员,主要从事果树良种选育与栽培研究,E-mail:419091816@qq.com

  • 中图分类号: S663.9

Metabolomics analysis of mulberry fruits at different developmental stages

  • 摘要:   目的  研究桑葚果实发育过程中的代谢组分变化规律。  方法  以桑葚品种粤椹大十绿果期、转色期和成熟期的果实为样本材料,进行广泛靶向代谢组学分析,并基于差异富集代谢物(Differentially accumulated metabolites, DAMs)进行KEGG代谢途径富集分析。  结果  从粤椹大十3个时期果实样本中检测到1146种代谢组分,以P<0.05且VIP>1.0为标准,其中483种代谢物被鉴定为DAMs,包括51种积累水平在整个果实发育过程中均显著差异的DAMs。2种类黄酮和1种花色苷在桑葚发育过程中显著提高。基于DAMs进行KEGG分析表明,α-亚麻酸代谢和亚油酸代谢在绿果期发育到转色期过程中显著富集,抗坏血酸和藻酸盐代谢在转色期发育到成熟期过程中显著富集,而亚油酸代谢和角质/木栓和蜡生物合成在整个果实发育过程中显著富集。进一步分析发现,尽管粤椹大十桑葚果实发育过程中包含6种上调积累和1种下调积累的亚油酸代谢组分,但从整体上看亚油酸积累水平呈下降趋势。  结论  发现51种DAMs可能持续参与了桑葚果实整个发育过程,其中花色苷与类黄酮显著提高,亚油酸代谢途径中的7种关键代谢组分可能影响其品质风味形成。研究结果有助于更好地了解桑葚成熟过程中营养成分的动态变化规律,为揭示桑葚果实品质风味形成机制和筛选优质桑葚种质奠定了基础,同时也为桑葚采摘期的判定提供了科学依据。
  • 图  1  不同发育时期的桑葚果实表型

    DS-Q、DS-Z和DS-C分别表示绿果期、转色期和成熟期。下同。

    Figure  1.  Phenotypes of mulberry fruits at different developmental stages

    DS-Q, DS-Z and DS-C represent the green fruit stage, color transition stage and maturity stage, respectively.The same as below.

    图  2  桑葚果实样本色谱图

    A和B分别表示正、负离子模式下色谱图。

    Figure  2.  Chromatogram of mulberry fruit samples

    A and B represent chromatograms in positive and negative ion modes, respectively.

    图  3  基于代谢组学的不同发育阶段桑葚果实样本聚类

    Figure  3.  Cluster analysis of mulberry fruit samples at different developmental stages based on metabolomics

    图  4  桑葚果实不同发育时期的差异富集代谢物鉴定

    A和B分别为差异富集代谢物的数目变化统计和韦恩图

    Figure  4.  Identification of DAMs at different development stages of mulberry fruit

    A and B represent the statistics and Venn diagram of the DAM changes respectively.

    图  5  基于桑葚果实不同发育时期DAMs的KEGG代谢途径富集分析

    A、B和C分别表示DS-Z vs DS-Q、DS-C vs DS-Z和DS-C vs DS-Q比较组。

    Figure  5.  Analysis of KEGG metabolic pathway enrichment based on DAMs of different development stages of mulberry fruit

    A, B and C represent the comparison groups of DS-Z vs DS-Q, DS-C vs DS-Z and DS-C vs DS-Q.

    图  6  桑葚果实发育过程中亚油酸代谢途径变化

    红色表示该代谢物在对应样本中上调积累,绿色表示下调积累。从左往右对应的3种样本分别为绿果期、转色期和成熟期的桑葚果实。

    Figure  6.  Changes in linoleic acid metabolism pathways during the development of mulberry fruits

    Red color indicates upaccumulation of the metabolite in the corresponding sample, while green color indicates downaccumulation. The three corresponding samples from left to right are samples of green fruit stage, color transition stage, and mature stage of mulberry fruits.

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出版历程
  • 收稿日期:  2027-07-16
  • 修回日期:  2024-09-05
  • 网络出版日期:  2024-11-11

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