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2025年5月6日 星期二
农业生物技术学报  2022, Vol. 30 Issue (7): 1237-1246    DOI: 10.3969/j.issn.1674-7968.2022.07.001
  研究论文与报告 本期目录 | 过刊浏览 | 高级检索 |
贵紫麦 SLC25A4 基因参与花青素合成的功能初步研究
李鲁华1,2, 熊富敏1,2, 安畅1,2, 彭亚姝1,2, 任明见1,2, 徐如宏1,2*
1 贵州大学 农学院,贵阳 550025;
2 国家小麦改良中心贵州大学分中心,贵阳 550025
Preliminary Analysis on the Functions of SLC25A4 Gene in Anthocyanin Synthesis of Guizi Wheat (Triticum aestivum)
LI Lu-Hua1,2, XIONG Fu-Min1,2, AN Chang1,2, PENG Ya-Shu1,2, REN Ming-Jian1,2, XU Ru-Hong1,2*
1 College of Agriculture, Guizhou University, Guiyang 550025, China;
2 Guizhou Sub-Center of National Wheat Improvement Center, Guiyang
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摘要 溶质转运家族 25 (solute carrier family 25, SLC25)成员参与花青素合成的调控过程。其家族成 员 SLC25A4 是腺嘌呤转移酶 1 (adenine nucleotide translocase 1, ANT1),参与植物生长发育和植物对逆境 胁迫响应等生物学过程。为了丰富小麦(Triticum aestivum) SLC25A4 的研究内容,探讨其在调控花青素合 成方面的生物学功能。本研究深入挖掘不同发育时期'贵紫麦 1 号'籽粒转录组数据中 SLC25A4 的表达情 况并进行 qPCR 验证 ,发现花后 25 天和花后 35 天(day post-anthesis, DPA) TaSLC25A4-7ATaSLC25A4-7B TaSLC25A4-7D1 基因的表达量显著高于 10 DPA (P<0.05),TaSLC25A4-7A 基因表达水平的变化趋势与 花青素积累量的变化趋势一致。本研究进一步获得了 TaSLC25A4-7A 过表达烟草(Nicotiana tabacum)转基 因株系 ,发现转基因株系中花青素合成相关基因 NtDFR, Nt4CL, NtCHINtF3H 的表达量显著高于野生 型(P<0.05),表明 TaSLC25A4-7A 参与调控花青素合成的生物学过程。用羰基氰化物间氯苯腙(carbonyl cyanide m-chlorophenylhydrazone, CCCP) 处理过表达转基因株系和野生型发现 ,过表达转基因株系对 CCCP 处理更敏感。本研究结果表明,TaSLC25A4 基因(特别是 TaSLC25A4-7A)参与调控花青素的合成,为 深入探讨 TaSLC25A4 基因在小麦花青素积累方面的生物学功能提供参考。
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李鲁华
熊富敏
安畅
彭亚姝
任明见
徐如宏
关键词 溶质转运家族 25SLC25A4转录花青素    
Abstract:The solute carrier family 25 (SLC25) members participate in regulation of anthocyanin biosynthesis. The SLC25 family member SLC25A4 is adenine nucleotide translocase 1 (ANT1), which plays important roles in growth and development, and response to stresses of plant. To enrich the research of SLC25A4 in wheat (Triticum aestivum) and explore biological functions of SLC25A4 in the regulation of anthocyanin biosynthesis, the expression of SLC25A4 was analyzed based on transcriptome sequence results at different developmental stages of 'Guizi 1' wheat grains and was further verified by qPCR. The results demonstrated that the expression of TaSLC25A4-7A, TaSLC25A4-7B and TaSLC25A4-7D1 genes was significantly higher at 25 days post anthesis (DPA) and 35 DPA than that at 10 DPA (P<0.05), particularly qPCR analysis showed that the dynamic change of TaSLC25A4-7A gene expression was consistent with that of anthocyanin accumulation. Furthermore, TaSLC25A4-7A gene overexpression transgenic tobacco (Nicotiana tabacum) lines were obtained, qPCR results showed that the expression level of anthocyanin synthesis related genes (NtDFR, Nt4CL, NtCHI and NtF3H) was significantly higher in transgenic lines than that in wild type (P<0.05), which demonstrated that TaSLC25A4-7A involved in the biological process of regulating anthocyanin synthesis. The results of carbonyl cyanide m-chlorophenylhydrazone (CCCP) treatment to transgenic lines and wild type demonstrated that the TaSLC25A4-7A overexpression transgenic lines were more sensitive to CCCP. The above results demonstrated that TaSLC25A4 gene (especially TaSLC25A4-7A) is involved in anthocyanin synthesis, which provides reference for further exploring the biological function of the TaSLC25A4 gene in anthocyanin accumulation and stresses response of wheat.
Key wordsSolute carrier family 25    SLC25A4    Transcriptome    Anthocyanin
    
通讯作者: *xrhgz@163.com   
引用本文:   
李鲁华, 熊富敏, 安畅, 彭亚姝, 任明见, 徐如宏. 贵紫麦 SLC25A4 基因参与花青素合成的功能初步研究[J]. 农业生物技术学报, 2022, 30(7): 1237-1246.
LI Lu-Hua, XIONG Fu-Min, AN Chang, PENG Ya-Shu, REN Ming-Jian, XU Ru-Hong. Preliminary Analysis on the Functions of SLC25A4 Gene in Anthocyanin Synthesis of Guizi Wheat (Triticum aestivum). 农业生物技术学报, 2022, 30(7): 1237-1246.
链接本文:  
http://journal05.magtech.org.cn/Jwk_ny/CN/10.3969/j.issn.1674-7968.2022.07.001     或     http://journal05.magtech.org.cn/Jwk_ny/CN/Y2022/V30/I7/1237
 
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