Comparative Genetic Structure of Cannabis sativa Including Federally Produced, Wild Collected, and Cultivated Samples

Currently in the United States, the sole licensed facility to cultivate Cannabis sativa L. for research purposes is the University of Mississippi, which is funded by the National Institute on Drug Abuse (NIDA). Studies researching Cannabis flower consumption rely on NIDA-supplied “research grade mar...

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Main Authors: Anna L. Schwabe, Connor J. Hansen, Richard M. Hyslop, Mitchell E. McGlaughlin
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-09-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fpls.2021.675770/full
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author Anna L. Schwabe
Connor J. Hansen
Connor J. Hansen
Richard M. Hyslop
Mitchell E. McGlaughlin
author_facet Anna L. Schwabe
Connor J. Hansen
Connor J. Hansen
Richard M. Hyslop
Mitchell E. McGlaughlin
author_sort Anna L. Schwabe
collection DOAJ
description Currently in the United States, the sole licensed facility to cultivate Cannabis sativa L. for research purposes is the University of Mississippi, which is funded by the National Institute on Drug Abuse (NIDA). Studies researching Cannabis flower consumption rely on NIDA-supplied “research grade marijuana.” Previous research found that cannabinoid levels of NIDA-supplied Cannabis do not align with commercially available Cannabis. We sought to investigate the genetic identity of Cannabis supplied by NIDA relative to common categories within the species. This is the first genetic study to include “research grade marijuana” from NIDA. Samples (49) were assigned as Wild Hemp (feral; 6) and Cultivated Hemp (3), NIDA (2), CBD drug type (3), and high THC drug type subdivided into Sativa (11), Hybrid (14), and Indica (10). Ten microsatellites targeting neutral non-coding regions were used. Clustering and genetic distance analyses support a division between hemp and drug-type Cannabis. All hemp samples clustered genetically, but no clear distinction of Sativa, Hybrid, and Indica subcategories within retail marijuana samples was found. Interestingly, the two analyzed “research grade marijuana” samples obtained from NIDA were genetically distinct from most drug-type Cannabis available from retail dispensaries. Although the sample size was small, “research grade marijuana” provided for research is genetically distinct from most retail drug-type Cannabis that patients and patrons are consuming.
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spelling doaj.art-b86cd230094441938b0dffa8fd63110d2022-12-21T20:10:44ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2021-09-011210.3389/fpls.2021.675770675770Comparative Genetic Structure of Cannabis sativa Including Federally Produced, Wild Collected, and Cultivated SamplesAnna L. Schwabe0Connor J. Hansen1Connor J. Hansen2Richard M. Hyslop3Mitchell E. McGlaughlin4School of Biological Sciences, University of Northern Colorado, Greeley, CO, United StatesSchool of Biological Sciences, University of Northern Colorado, Greeley, CO, United StatesDepartment of Chemistry and Biochemistry, University of Northern Colorado, Greeley, CO, United StatesDepartment of Chemistry and Biochemistry, University of Northern Colorado, Greeley, CO, United StatesSchool of Biological Sciences, University of Northern Colorado, Greeley, CO, United StatesCurrently in the United States, the sole licensed facility to cultivate Cannabis sativa L. for research purposes is the University of Mississippi, which is funded by the National Institute on Drug Abuse (NIDA). Studies researching Cannabis flower consumption rely on NIDA-supplied “research grade marijuana.” Previous research found that cannabinoid levels of NIDA-supplied Cannabis do not align with commercially available Cannabis. We sought to investigate the genetic identity of Cannabis supplied by NIDA relative to common categories within the species. This is the first genetic study to include “research grade marijuana” from NIDA. Samples (49) were assigned as Wild Hemp (feral; 6) and Cultivated Hemp (3), NIDA (2), CBD drug type (3), and high THC drug type subdivided into Sativa (11), Hybrid (14), and Indica (10). Ten microsatellites targeting neutral non-coding regions were used. Clustering and genetic distance analyses support a division between hemp and drug-type Cannabis. All hemp samples clustered genetically, but no clear distinction of Sativa, Hybrid, and Indica subcategories within retail marijuana samples was found. Interestingly, the two analyzed “research grade marijuana” samples obtained from NIDA were genetically distinct from most drug-type Cannabis available from retail dispensaries. Although the sample size was small, “research grade marijuana” provided for research is genetically distinct from most retail drug-type Cannabis that patients and patrons are consuming.https://www.frontiersin.org/articles/10.3389/fpls.2021.675770/fullCannabis sativaNIDAgenotypemarijuanamicrosatellitephenotype
spellingShingle Anna L. Schwabe
Connor J. Hansen
Connor J. Hansen
Richard M. Hyslop
Mitchell E. McGlaughlin
Comparative Genetic Structure of Cannabis sativa Including Federally Produced, Wild Collected, and Cultivated Samples
Frontiers in Plant Science
Cannabis sativa
NIDA
genotype
marijuana
microsatellite
phenotype
title Comparative Genetic Structure of Cannabis sativa Including Federally Produced, Wild Collected, and Cultivated Samples
title_full Comparative Genetic Structure of Cannabis sativa Including Federally Produced, Wild Collected, and Cultivated Samples
title_fullStr Comparative Genetic Structure of Cannabis sativa Including Federally Produced, Wild Collected, and Cultivated Samples
title_full_unstemmed Comparative Genetic Structure of Cannabis sativa Including Federally Produced, Wild Collected, and Cultivated Samples
title_short Comparative Genetic Structure of Cannabis sativa Including Federally Produced, Wild Collected, and Cultivated Samples
title_sort comparative genetic structure of cannabis sativa including federally produced wild collected and cultivated samples
topic Cannabis sativa
NIDA
genotype
marijuana
microsatellite
phenotype
url https://www.frontiersin.org/articles/10.3389/fpls.2021.675770/full
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