研究报告

兰州百合鳞茎花青素合成相关MYB与bHLH转录因子的筛选分析

  • 范文广 ,
  • 李保豫 ,
  • 田辉 ,
  • 李欣 ,
  • 任海伟 ,
  • 曹莹莹 ,
  • 姜欣彤 ,
  • 柴佳靖 ,
  • 陈少青
展开
  • (兰州理工大学 生命科学与工程学院,甘肃 兰州,730050)
第一作者:博士,副教授(通信作者,E-mail:fanwenguang_88@163.com)

收稿日期: 2022-08-09

  修回日期: 2022-10-26

  网络出版日期: 2024-02-27

基金资助

国家自然科学基金项目 (31960491);甘肃省科技计划项目(20JR10RA159)

Screening and analysis of MYB and bHLH transcription factors associated with anthocyanin synthesis in Lilium davidii var. unicolor bulbs

  • FAN Wenguang ,
  • LI Baoyu ,
  • TIAN Hui ,
  • LI Xin ,
  • REN Haiwei ,
  • CAO Yingying ,
  • JIANG Xintong ,
  • CHAI Jiajing ,
  • CHEN Shaoqing
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  • (School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China)

Received date: 2022-08-09

  Revised date: 2022-10-26

  Online published: 2024-02-27

摘要

百合鳞茎在采后贮藏过程中,由于花青素的积累导致鳞茎变紫红色,进而影响其价值。该文基于兰州百合鳞茎转录组数据,利用生物信息学技术分析花青素相关转录因子,共分析了50个MYB转录因子与73个bHLH转录因子,包括序列的比对、理化性质分析、亚细胞定位、系统进化关系以及保守结构域预测。MYB分类结果显示,50个MYB转录因子中有2个属于1R-MYB类,44个属于R2R3-MYB类,3个属于3R-MYB类,1个属于4R-MYB类。50个MYB不稳定蛋白均为亲水性蛋白,亚细胞定位表明48个MYB定位于细胞核。73个bHLH均为不稳定蛋白,且72个都为亲水性,亚细胞定位显示58个bHLH定位于细胞核。通过与模式植物拟南芥MYB和bHLH转录因子构建进化树分析、保守结构域预测、基因表达量分析以及转录因子与结构基因的相关性分析,初步筛选出3个MYB基因和1个bHLH基因可促进兰州百合鳞茎花青素合成,为进一步深入研究兰州百合鳞茎花青素调控基因提供了理论支持。

本文引用格式

范文广 , 李保豫 , 田辉 , 李欣 , 任海伟 , 曹莹莹 , 姜欣彤 , 柴佳靖 , 陈少青 . 兰州百合鳞茎花青素合成相关MYB与bHLH转录因子的筛选分析[J]. 食品与发酵工业, 2024 , 50(2) : 57 -66 . DOI: 10.13995/j.cnki.11-1802/ts.033270

Abstract

During the post-harvest storage of lily bulbs, the accumulation of anthocyanins causes the bulbs to turn violet-red, which in turn affects their value. Based on transcriptome data in Lilium davidii var. unicolor bulbs and analysis of anthocyanin-related transcription factors using bioinformatics technology, including sequence alignment, physicochemical property analysis, subcellular localization, phylogenetic relationship, and prediction of conserved domains, a total of 53 MYB transcription factors and 73 bHLH transcription factors were analyzed. The MYB classification results showed that 2 of them belonged to the 1R-MYB class, 44 of them belonged to the R2R3-MYB class, 3 of them belonged to the 3R-MYB class, and 1 of them belonged to the 4R-MYB class. Among 50 MYB unstable proteins showed hydrophilicity, and subcellular localization indicated that 48 MYBs were localized to the nucleus. All 73 bHLHs were unstable proteins, and 72 were hydrophilic. Subcellular localization showed that 58 bHLHs were localized in the nucleus. By constructing phylogenetic tree analysis with the model plant Arabidopsis MYB and bHLH transcription factors, the prediction of conserved domains, gene expression analysis, as well as correlation analysis between transcription factors and structural genes, 3 MYB genes and 1 bHLH genes that promote anthocyanin synthesis were preliminarily screened out from the bulbs of Lilium davidii var. unicolor. It provides theoretical support for further in-depth study of anthocyanin-regulated genes in Lilium davidii var. unicolor bulbs.

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