CAJ | 학술논문

　　目的：应用ITS2条形码序列准确、快速鉴定中药材地黄及其同属密切相关种，以确保该药材的质量及临床用药安全。方法：PCR扩增产物测序后所得序列经质量分析和拼接，计算地黄及其同属物种的种内、种间K2P遗传距离，基于K2P 模型构建NJ树，对地黄药材进行鉴定。结果：地黄药材ITS2序列长度为231 bp，种内变异较小，平均K2P遗传距离为0.0004，地黄药材及其同属密切相关种的种间平均K2P遗传距离为0.0312，种间最小K2P遗传距离大于地黄药材种内的最大K2P遗传距离。利用构建的NJ树可以明显鉴定中药材地黄。结论：ITS2作为条形码可以有效鉴定中药材地黄及其同属的密切相关种，为保障地黄药材的临床安全用药奠定了基础。
　　목적：응용ITS2조형마서렬준학、쾌속감정중약재지황급기동속밀절상관충，이학보해약재적질량급림상용약안전。방법：PCR확증산물측서후소득서렬경질량분석화병접，계산지황급기동속물충적충내、충간K2P유전거리，기우K2P 모형구건NJ수，대지황약재진행감정。결과：지황약재ITS2서렬장도위231 bp，충내변이교소，평균K2P유전거리위0.0004，지황약재급기동속밀절상관충적충간평균K2P유전거리위0.0312，충간최소K2P유전거리대우지황약재충내적최대K2P유전거리。이용구건적NJ수가이명현감정중약재지황。결론：ITS2작위조형마가이유효감정중약재지황급기동속적밀절상관충，위보장지황약재적림상안전용약전정료기출。
Objective: To identify Rehmanniae Radiuxand its closely related species using the ITS2 barcode and to guarantee the quality and clinical curative effect of this medical material. Method: The sequences has been ana-lyzed and assembled using corresponding software. The Kimura 2-Parameter (K2P) distances were calculated and NJ (neighbor-joining) tree was established based on the K2P methods to identify the Rehmanniae Radix. Results:The length of the ITS2 sequence of Rehmanniae Radix was 231 bp. The average intra-specific genetic distances of Rehmanniae Radix were 0.0004. The average inter-specific genetic distances between Rehmanniae Radix and its closely related species were 0.0312. The minimum inter-specific divergence is larger than the maximum intra-specific divergence. The Rehmanniae Radix can be identified using the NJ trees method. Conclusions: The ITS2 sequence can be used as DNA barcode to identify Rehmanniae Radix and its closely related species, which will lay the foundation for the clinical medication safety of Rehmanniae Radix.