Navigation Links
New DNA 'fingerprinting' technique separates hemp from marijuana

Using new DNA "fingerprinting" techniques, two University of Minnesota researchers have become the first to unequivocally separate hemp plants from marijuana plants with genetic markers.

Hemp, a crop grown for durable fiber and nutritious seed, and marijuana, the most abundant illegal drug of abuse in the United States, both belong to the species Cannabis sativa. They differ in levels of the psychoactive drug tetrahydrocannabinol (THC) but are otherwise difficult to tell apart. The technique holds promise for distinguishing different cultivars (domesticated plant lines) in U.S. criminal cases. It may also prove useful in countries where the cultivation of hemp is permitted but marijuana is illegal, as in Canada and Europe. The work appears in the March issue (volume 51, No. 2) of the Journal of Forensic Science.

The new technique is an improvement on previous means of separating the two types of Cannabis, said author George Weiblen, an assistant professor of plant biology in the university's College of Biological Sciences and College of Food, Agricultural and Natural Resource Sciences. For decades it has been possible to identify THC chemically, but the drug is not present in all plant tissues or throughout a plant's life cycle. And other researchers have found that genetic markers known as "short tandem repeats," which are used to identify individuals in paternity and criminal cases, lack the power to distinguish Cannabis cultivars unequivocally.

In tests with three different cultivars of hemp and one of marijuana, the DNA fingerprints of all the cultivars were distinct and nonoverlapping. Weiblen and Shannon L. Datwyler, a postdoctoral associate who is now on the faculty of California State University, Sacramento, found that the AFLP (amplified fragment length polymorphism) technique generated hundreds of genetic markers that together established separate identities for each of the four cultivars.

"We think this technique has the
'"/>

Source:University of Minnesota


Page: 1 2

Related biology news :

1. New lab technique identifies high levels of pathogens in therapy pool
2. Brain-mapping technique aids understanding of sleep, wakefulness
3. Study reveals new technique for fingerprinting environmental samples
4. Researchers pioneer new gene therapy technique using natural repair process
5. Newer imaging techniques may lead to over-treatment
6. Gene silencing technique offers new strategy for treating, curing disease
7. Mosaic mouse technique offers a powerful new tool to study diseases and genetics
8. Researchers devise new technique for creating human stem cells
9. New technique rapidly detects illness-causing bacteria
10. New bioinformatics technique for systematically analyzing key regions in DNA that help control gene activity
11. New technique may speed DNA analysis
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: New DNA fingerprinting technique separates hemp from marijuana

(Date:12/17/2014)... 16, 2014 Valencell, a leader in performance ... technology to industry leaders such as Intel, Jabra, Atlas, ... biometric wearable products. These products will be showcased at ... Las Vegas . "Our partners ... and robust – with the clinical data to back ...
(Date:12/11/2014)... 09, 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/twhjll/biometrics_market ) has announced the addition ... Region 2015-2019"  report to their offering. ... is advances in technology. With continuous advances in ... to the latest standard that meets the needs ...
(Date:12/10/2014)... -- You,ve been here before: you desperately need to sign ... site key or the answer to your secret question. What,s ... Today, Hoyos Labs , a digital infrastructure ... put an end to the frustration that comes with usernames, ... leverages a user,s smartphone to acquire his or her biometrics ...
Breaking Biology News(10 mins):Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 2The Password is Finally Dead: Launch of 1U Mobile App Eliminates Need for All Usernames and Passwords 3
... it." The saying could apply especially to the brain ... studies have shown that keeping the mind active, exercising ... dementia in Alzheimer,s disease. Now, a new ... Center for Neurologic Diseases in the BWH Department of ...
... 5.8 million Americans suffer from heart failure, a currently ... Medicine,s (TUSM) Center for Translational Medicine have discovered a ... the development of new drugs to treat and possibly ... failure are not very effective," explained lead investigator Walter ...
... A team of European scientists from the University Medical Center ... Cellular Stress Responses in Aging-Associated Diseases (CECAD) at the ... closer to understanding the root cause of age-related dementia. In ... age-related dementia is likely the result of a declining ability ...
Cached Biology News:Use it or lose it 2Temple researchers discover key to heart failure, new therapies on horizon 2Temple researchers discover key to heart failure, new therapies on horizon 3Age-related dementia may begin with neurons' inability to dispose of unwanted proteins 2
(Date:12/24/2014)... December 23, 2014 Earlier this year ... L. Sherley, director of the Adult Stem Cell Technology ... often overlooked and under appreciated unique property of adult ... Distributed Stem Cells: Misunderstood in the Past, Important for ... congress participants. He gave the address at the ...
(Date:12/24/2014)... Dallas, Texas (PRWEB) December 23, 2014 ... on methyl mercaptan such as its definition, ... also presents product specification, manufacturing process, and ... regions, technology and applications. The analysis also ... survey, marketing channels, industry development trend and ...
(Date:12/24/2014)... BEIJING , Dec. 23, 2014 ... or the "Company"), a leading fully integrated plasma-based ... today announced that its majority-owned subsidiary, Shandong Taibang ... Practices ("GMP") certification from the China Food and ... factor production facility. As previously disclosed in the ...
(Date:12/24/2014)...  Rock Creek Pharmaceuticals, Inc., (NASDAQ: RCPI ... Trial Application (CTA) with the United Kingdom,s ... regulatory approval to initiate clinical trials for the continued ... Contingent on the Company receiving CTA regulatory approval, the ... assess the safety, tolerability and dose escalation of Anatabine ...
Breaking Biology Technology:Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 2Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 3Adult Stem Cell Technology Center, LLC’s Director Sherley's Address on What’s Holding Back Regenerative Medicine Featured on Omics Group Website 4Worldwide Methyl Mercaptan Market 2015-2020 Forecasts on Development & Trends Now Available at ReportsnReports.com 2China Biologic Receives GMP Certification for New Coagulation Factor Facility 2China Biologic Receives GMP Certification for New Coagulation Factor Facility 3Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 2Rock Creek Pharmaceuticals Files Clinical Trial Application in the UK for Clinical Trials of Anatabine Citrate Formulations 3
... Nfocus device development team.PALO ALTO, Calif., April 30 ... today the appointment of accomplished regulatory executive Robert O,Holla ... President of Regulatory Affairs. "Bob O,Holla brings an unmatched ... , having served 18 of his last 30 years ...
... April 30 Idenix Pharmaceuticals, Inc. (Nasdaq: IDIX ... of drugs for the treatment of human viral diseases, today ... 31, 2009. At March 31, 2009, Idenix,s cash, cash equivalents ... , , ...
... Resonant Medical, an innovator in 3D ultrasound image-guided ... Stephen Whisenhunt to the position of Vice President ... the Company,s growing global sales team and manage ... years of radiation oncology industry experience to the ...
Cached Biology Technology:Nfocus Neuromedical Appoints Robert O'Holla to Head Regulatory 2Idenix Pharmaceuticals Reports First Quarter Financial Results 2Idenix Pharmaceuticals Reports First Quarter Financial Results 3Idenix Pharmaceuticals Reports First Quarter Financial Results 4Idenix Pharmaceuticals Reports First Quarter Financial Results 5Idenix Pharmaceuticals Reports First Quarter Financial Results 6Resonant Medical Expands Sales Organization with Appointment of Vice President of Global Sales and Marketing 2
... CLS number is a ... to easily match Cornings ... no availability yet, please ... Sigma-Aldrich number (Z71,381-3) or ...
... This CLS number is ... to easily match Cornings product ... yet, please order under the ... contact customer service for assistance. ...
... Anti-YAP Polyclonal Antibody ... purified rabbit polyclonal antibody. Detects 70 ... in Western blotting and immunohistochemistry. ... proliferation Storage: ...
... Stain for Mass Spectrometry Applications ,In ... (MS) has emerged as a powerful protein ... 2-D gels is now an important intermediate ... leads ultimately to identification of specific proteins ...
Biology Products: