生物技术通报 ›› 2025, Vol. 41 ›› Issue (6): 256-268.doi: 10.13560/j.cnki.biotech.bull.1985.2024-1105

• 研究报告 • 上一篇    

灰毡毛忍冬bHLH转录基因家族的鉴定与表达分析

瞿美玲1(), 周思敏1, 张惊宇1, 何佳蔚1, 朱佳源1, 刘笑蓉1,2, 童巧珍1,2,3, 周日宝1,2,3,4(), 刘湘丹1,2,3,4()   

  1. 1.湖南中医药大学药学院,长沙 410208
    2.湘产大宗道地药材种质资源及规范化种植重点研究室,长沙 410208
    3.湖南省普通高等学校 中药现代化研究重点实验室,长沙 410208
    4.湖南省中药饮片标准化及功能工程技术研究中心,长沙 410208
  • 收稿日期:2024-11-12 出版日期:2025-06-26 发布日期:2025-06-30
  • 通讯作者: ‍‍:‍刘湘丹,博士,教授,博士生导师,研究方向 :中药资源与质量;E-mail: paeonia@hnucm.edu.cn
    周日宝,博士,教授,博士生导师,研究方向 :中药资源与质量;E-mail: 1057323510@126.com
  • 作者简介:瞿美玲,女,硕士研究生,研究方向 :中药资源与质量;E-mail:2544018903@qq.com
  • 基金资助:
    ?:?国家自然科学基金项目(82373992);国家现代农业产业技术体系(CARS-21);湖南省中药材产业技术体系专项(HARS-11);湖南省自然科学基金(2023JJ60477);2020年湖南省一流专业建设点:中药资源与开发,湖南中医药大学重点学科中药学科(校行发规字[2023]2号);2024年湖南省研究生科研创新项目(CX20240739);湖南中医药大学校级科研课题(2022YYZK003)

Identification and Expression Analysis of bHLH Transcription Gene Family in Lonicera macranthoides

QU Mei-ling1(), ZHOU Si-min1, ZHANG Jing-yu1, HE Jia-wei1, ZHU Jia-yuan1, LIU Xiao-rong1,2, TONG Qiao-zhen1,2,3, ZHOU Ri-bao1,2,3,4(), LIU Xiang-dan1,2,3,4()   

  1. 1.School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208
    2.Key Laboratory of Germplasm Resources and Standardized Planting of Genuine Medicinal Materials in Hunan Province, Changsha 410208
    3.Key Laboratory of Modernization of Traditional Chinese Medicine in Hunan Province, Changsha 410208
    4.Standardization and Functional Engineering Technology Research Center for Traditional Chinese Medicine Decoction Pieces in Hunan Province, Changsha 410208
  • Received:2024-11-12 Published:2025-06-26 Online:2025-06-30

摘要:

目的 研究灰毡毛忍冬bHLH转录因子家族成员的结构和功能,分析其表达特征,为后续深入研究灰毡毛忍冬bHLH基因家族在花发育过程中的功能奠定基础。 方法 基于灰毡毛忍冬两品种花转录组数据,筛选bHLH基因家族成员,利用在线工具进行生物信息学分析,获得灰毡毛忍冬两品种显著表达差异的基因,通过RT-qPCR验证bHLH的表达情况。 结果 共鉴定到55个bHLH转录因子家族成员,进化树分析显示灰毡毛忍冬bHLH蛋白与拟南芥有较高保守性,并基于进化树对部分bHLH蛋白的功能进行了预测。表达分析显示灰毡毛忍冬两品种bHLH基因存在显著差异,LmbHLH4/21/35在‘常规’中高表达,LmbHLH25在‘湘蕾’花期5-7中高表达。RT-qPCR结果显示,其相对表达量与转录组测序数据基本一致,证实了转录组测序结果的可靠性。 结论 推测LmbHLH4/21/15/25/35可能为参与调控灰毡毛忍冬花生长发育的关键转录因子,其为解析灰毡毛忍冬两品种花差异表型的分子机制提供了参考。

关键词: 灰毡毛忍冬, bHLH基因家族, 生物信息学, 表达分析

Abstract:

Objective To study the structure and function of bHLH transcription factor family members in Lonicera macranthoides, and to analyze their expression characteristics, so as to lay a foundation for further study on the function of bHLH gene family in flower development of L. macranthoides. Method Based on the flower transcriptome data of two varieties of L. macranthoides, the members of bHLH gene family were screened, and bioinformatics analysis was carried out by online tools to obtain the genes with significant expression differences between the two varieties of L. macranthoides. The expression of bHLH was verified by RT-qPCR. Result A total of 55 bHLH transcription factor family members were identified. Phylogenetic tree analysis showed that the bHLH protein of L. macranthoides was highly conserved with Arabidopsis thaliana, and the functions of some bHLH proteins were predicted based on the phylogenetic tree. Expression analysis showed that there were significant differences in bHLH genes between the two varieties of L.macranthoides. LmbHLH4/21/35 was highly expressed in the ‘Changgui’, and LmbHLH25 was highly expressed in the flowering stage 5-7 of ‘Xianglei’. The results of RT-qPCR showed that the relative expression was basically consistent with the transcriptome sequencing data, which confirmed the reliability of the transcriptome sequencing results. Conclusion LmbHLH4/21/15/25/35 may be a key transcription factor involved in the regulation of flower growth and development of L. macranthoides, which provides a reference for analyzing the molecular mechanism of flower difference phenotype of two varieties of Lonicera macranthoides.

Key words: Lonicera macranthoides, bHLH gene family, bioinformatics, expression analysis