Development and Validation of a Novel and Fast Detection Method for Cannabis sativa: A 19-Plex Short Tandem Repeat Typing System

被引:2
作者
Xia, Ruocheng [1 ]
Tao, Ruiyang [1 ]
Qu, Yiling [1 ]
Zhang, Xiaochun [1 ]
Yu, Huan [2 ]
Yuan, Chunyan [1 ,3 ]
Zhang, Suhua [1 ]
Li, Chengtao [1 ]
机构
[1] Acad Forens Sci, Minist Justice, Shanghai, Peoples R China
[2] Shanxi Med Univ, Sch Forens Med, Taiyuan, Peoples R China
[3] Inner Mongolia Med Univ, Dept Forens Med, Hohhot, Peoples R China
来源
FRONTIERS IN PLANT SCIENCE | 2022年 / 13卷
关键词
Cannabis sativa; short tandem repeats (STRs); polymerase chain reaction (PCR); capillary electrophoresis (CE); multiplex system; developmental validation; NOMENCLATURE PROPOSAL; MULTIPLEX SYSTEM; LOCI; IDENTIFICATION; AMPLIFICATION; HAPLOTYPES; PCR;
D O I
10.3389/fpls.2022.837945
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
In recent years, influenced by the legalization of Cannabis sativa in some countries and regions, the number of people who smoke or abuse C. sativa has continuously grown, cases of transnational C. sativa trafficking have also been increasing. Therefore, fast and accurate identification and source tracking of C. sativa have become urgent social needs. In this study, we developed a new 19-plex short tandem repeats (STRs) typing system for C. sativa, which includes 15 autosomal STRs (D02-CANN1, C11-CANN1, 4910, B01-CANN1, E07-CANN1, 9269, B05-CANN1, H06-CANN2, 5159, nH09, CS1, ANUCS 305, 3735, and ANUCS 302 and 9043), two X-chromosome STRs (ANUCS 501 and 1528), one sex-determining marker (DM016, on Y-chromosome), and a quality control marker (DM029, on autosome). The whole polymerase chain reaction (PCR) process could finish within 1 h, making the system suitable for fast detection. The PCR products were detected and separated with an Applied Biosystems 3500XL Genetic Analyser. Developmental validation studies indicated that the 19-plex typing system was accurate, reliable and sensitive, which could also deconvolute mixed C. sativa samples. Specifically, the sensitivity study showed that a full genotyping profile was obtainable with as low as 125 pg of C. sativa DNA. The species specificity study demonstrated that this multiplex has no cross-reactivity with common non C. sativa DNA. In the population study, a total of 162 alleles at 15 autosomal STRs and 14 alleles at two X-chromosome STRs were detected among 85 samples. The efficiency parameters, including the total discrimination power (TDP) and the combined power of exclusion (CPE) of the system, were calculated to exceed 0.999 999 999 999 988 and 0.998 455 889 684 078, respectively, further proving that the system could meet the needs of individual identification. To the extent of the known studies, this is the first study that included the C. sativa sex-determining marker. In conclusion, the developed new 19-plex STR typing system can successfully achieve the purposes of species identification, gender determination, and individual identification, which could be a powerful tool in tracing trade routes of particular drug syndicates or dealers or in linking certain C. sativa to a crime scene.
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页数:12
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