基于DNA条形码和HPLC指纹,分析了五种的遗传和化学变异性
Mengying Chen1, Jian Sun2, Hui Yao3
1Zhejiang Provincial Key Laboratory of Resources Protection and Innovation of Traditional Chinese Medicine, Zhejiang Agriculture and Forest University, Hangzhou, China.
Frontiers in plant science
|September 25, 2023
概括
这项研究分析了传统亚洲医学中使用的5种黄的遗传和化学变异性. 遗传标记和HPLC揭示了不同的化学特征,有助于识别和发现新的药用植物资源.
科学领域:
- 药理学是指药理学,即药理学是指药理学.
- 分子生物学分子生物学
- 化学分类学 化学分类学
背景情况:
- 黄种子的根茎是传统亚洲医学的组成部分,特别是在中国.
- 五种曲奇种 (C. phaecocaulis,C. aromatica,C. wenyujin,C. kwangsiensis,C. longa) 是重要的制药资源.
- 了解遗传和化学变异性对于质量控制和资源发现至关重要.
研究的目的:
- 为了研究五种关键的Curcuma物种之间的遗传和化学变异性.
- 评估ITS2和trnK内部基因片段对物种识别的有用性.
- 为了评估药用植物资源,将遗传多样性与化学成分相关联.
主要方法:
- 用于基因分析的ITS2和trnK内突基因片段的DNA测序.
- 高性能液体染色学 (HPLC) 用于根据特征性峰值区域和六个关键成分确定化学成分.
- 欧几里德距离计算以量化化学和遗传变异性.
- 对农学特征的分析,包括形态和挥发性石油产量.
主要成果:
- ITS2和trnK的内部基因碎片有效地区分了五种Curcuma物种.
- 遗传距离有所不同:0.00850.0767 (ITS2) 和0.00030.0194 (trnK).
- 观察到显著的化学成分差异 (欧几里德距离:3.3736.998),其中C. longa显示出最多的变化.
- 在特定样本中记录了最高的挥发性油产量 (W1: 105.75 mL/植物,J6: 149.42 mL/植物).
结论:
- 化学成分相似性是选择黄药药物材料的主要标准.
- 遗传距离和化学变异性是识别新药植物资源的宝贵参考.
- 这项研究为合理利用和开发Curcuma物种提供了基础.
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