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c-ray
08-19-2011, 03:21 AM
from http://www.bloomberg.com/news/2011-08-18/marijuana-dna-sequenced-by-startup.html

Marijuana DNA Sequenced by Startup in Search for Medical Uses

By Meg Tirrell - Aug 17, 2011 9:01 PM PT

Kevin McKernan was leading Life Technologies Corp. (LIFE)’s Ion Torrent DNA-sequencing research when a new business opportunity caught his eye: marijuana.

A year later, McKernan, 38, has quit his job, formed a startup run from his house in Marblehead, Massachusetts, and announced today that the company had sequenced the entire genome of the cannabis plant.

The project, which cost about $200,000, may lead to the development of treatments for cancer, pain and inflammatory diseases, he said. McKernan’s company, Medicinal Genomics, is making the data public using Amazon.com Inc. (AMZN)’s EC2 cloud- computing system. McKernan called the work a “draft assembly,” and it hasn’t yet been published in a peer-reviewed academic journal.

“This is the beginning of a more scientific approach to the genetics of the species,” Richard Gibbs, director of the Human Genome Sequencing Center at the Baylor College of Medicine in Houston, said in a telephone interview yesterday. “This is not really about marijuana; it’s about pharmacology.”

An important step to find a species’ potential utility is to map its DNA, the building block of life, according to Gibbs, who said he has known McKernan for more than 15 years.

McKernan worked on the Human Genome Project from 1996 to 2000, and started a commercial laboratory with his two brothers called Agencourt Bioscience, which was sold to Beckman Coulter Inc. in 2005. A spin-out of Agencourt that made sequencing technology, called Agencourt Personal Genomics, was acquired by Applied Biosystems Inc., which combined with Invitrogen Corp. in 2008 to become Carlsbad, California-based Life Technologies. Life Technologies bought Ion Torrent last year for $375 million in cash and stock.

Open Access
McKernan said his company’s goal is to allow researchers to find ways to maximize the cannabis plant’s therapeutic benefits and minimize its psychoactive effects.

“These pathways can be optimized in the plant or cloned into other hosts for more efficient biologic production,” Medicinal Genomics said in a statement. “It may be possible through genome directed breeding to attenuate the psychoactive effects of cannabis, while enhancing the medicinal aspects.”

The plant makes chemical compounds called cannabinoids, a class that includes tetrahydrocannabinol, or THC, the main psychoactive substance in marijuana. Another such compound called cannabidiol, or CBD, has shown promise in shrinking tumors in rats without the psychoactive effects, McKernan said.

Medical Uses
“That one has been predominantly bred out of the plant as it’s been bred for recreational use,” he said. His company’s business model is to develop assays to enable regulators, government agencies or pharmaceutical companies to research cannabis’s gene pathways.

Donald Abrams, a professor of medicine at the University of California, San Francisco, who has done research into medical cannabis since 1997, said scientists have been able to study the plant without knowing the genome.

“We know what the active ingredients of the plant are already,” Abrams, chief of oncology at San Francisco General Hospital, said in a telephone interview. “You don’t need the genome; you need the plant.”

Companies such as GW Pharmaceuticals Plc (GWP), based in Salisbury, England, have developed cannabis-based medicines. GW sells Sativex for muscle spasms related to multiple sclerosis, using THC and CBD.

McKernan said he was initially convinced to pursue the research after seeing papers published in academic journals including Nature on the plant’s tumor-shrinking effects in rats.

“One in three people are going to get cancer, and one in four are going to die with it or from it,” he said. “So any compound, as preliminary as this may be, that’s nontoxic and shows hope there, we should be all over.

“The only way I knew how to do that was to sequence the genome.”

c-ray
08-19-2011, 03:29 AM
http://www.medicinalgenomics.com

c-ray
08-19-2011, 06:06 PM
I guess they beat Chimera to it

Green Supreme
08-19-2011, 06:29 PM
LOl that's funny. He was just here for dinner last night and I showed him that. He seems excited and skeptical at the same time. Peace GS

c-ray
08-19-2011, 07:24 PM
I wonder how many strains they used to create the map?

Green Supreme
08-20-2011, 03:26 AM
Sounds like they mapped 1. Peace GS

c-ray
08-26-2011, 03:26 AM
http://www.youtube.com/watch?v=EUh-itFdV5E

c-ray
09-03-2011, 08:18 PM
yes the strain was chemdawg (thanks for the link)

the raw data can be accessed here:
http://csativa.elasticbeanstalk.com

Green Supreme
09-03-2011, 08:34 PM
They also did LA Con and Chocolope. Peace GS

c-ray
09-03-2011, 08:42 PM
oh cool

Green Supreme
09-03-2011, 08:52 PM
The ICmag thread about his is pretty cool. Sam the Skunkman has commented a few times. Peace GS

https://www.icmag.com/ic/showthread.php?t=219580

spaceman
09-03-2011, 09:15 PM
am i the only one who thinks this is a bad idea. I like the suprise , every seed brings! as far as all that DNA well i think the biosphere has a good reason for it. I think it is a good idea to understand the cannabis plant better but to actually change its dna for our short sighted purpose that seems dangerous to me. what about the magic.what about a field of dreams. I for one think unless this technology is not watched carefully, it will be used to destroy us.

c-ray
09-03-2011, 10:44 PM
the nature spirits who help guide the evolution of the cannabis plant do not see this a threat, only an illusion.. true seekers will see that only by connecting fully with nature are we allowed to experience her full splendor

c-ray
10-20-2011, 03:05 PM
from http://www.winnipegfreepress.com/canada/breakingnews/canadian-researchers-decode-cannabis-genome-find-reason-hemp-differs-from-pot-132212848.html

Canadian researchers decode Cannabis genome, find reason hemp differs from pot

By: Sheryl Ubelacker, Health Reporter, The Canadian Press
10/19/2011

TORONTO - It's the same plant, but one type provides fibres for rope, while the other can make you high.

Now Canadian scientists, the first to sequence the genome of Cannabis sativa — the plant species that covers both hemp and marijuana — are beginning to understand why.

"This is one of the interesting things about us sequencing the genome of Cannabis sativa is that we hope to be able to use that genome sequence to shed light on these questions about how did hemp arise and how did marijuana arise," said Jon Page, a plant biochemist at the University of Saskatchewan.

Page, who co-led the research project to decode the genetic underpinnings of the cannabis species, said the plant likely originated in Asia, around modern-day Afghanistan and surrounding area.

Archeological evidence shows hemp textiles were used in China at least 6,000 years ago and shamanistic material from a Chinese tomb dated about 2,700 years ago was likely from the marijuana-type plant, he said Wednesday from Saskatoon.

Page said people likely recognized the plant had several uses: it was the source of fibres to make rope and cloth, as well as seeds that produce oil and contain protein.

"But they also realized that the flowers of ... the female plant were full of a chemical that could relieve pain and cause a sort of pleasant intoxication," he said. "So maybe what happened over time was those two uses — the medical and psychoactive — started to be separated from the rope and food use, and different types of strains were being grown for those uses."

That suggests that early farmers may have been engaging in selective breeding even thousands of years ago.

Co-investigator Tim Hughes, a molecular biologist at the University of Toronto, sequenced the genomes of both Purple Kush, a marijuana strain widely used for medicinal purposes, and the Finola variety of hemp.

He then looked for differences to explain why marijuana produces THCA, or tetrahydrocannabinolic acid, the precursor of the active ingredient in marijuana, while hemp strains contain a non-psychoactive component.

Page said analysis showed that the THCA synthase gene, an essential enzyme in THCA production, "is turned on in marijuana, but switched off in hemp."

The researchers, whose report is published Thursday in the journal Genome Biology, are making the cannabis genome publicly available for researchers worldwide.

Page said the data could help scientists better understand the plant's properties and lead to expanded uses. For instance, because Cannabis sativa "puts on a huge amount of biomass each season ... there's the idea that it could be used for producing biofuels in an efficient way."

On the medical side, knowing the genetic makeup of cannabis could aid the development of drugs to treat pain, without the side-effects of straight marijuana, added Hughes.

"People want a painkiller, but they don't necessarily want to be mentally incapacitated," he said. "So if you could make variations in the molecule, that would increase the painkiller effect but decrease the effect on your mental capacity. For most people using it, that would probably be a step in the right direction.

"Although for others," he said, laughing, "it might not matter."

Page said there is also a potential forensic use for the genetic data, with law enforcement interested in tracking illicit marijuana. For instance, he said one police force wondered if stalks left in a harvested field suspected to have been a marijuana crop could be DNA-fingerprinted and the results used as evidence in court.

"So DNA is a useful way of finding out the identity of a sample. People are identified by their DNA samples; plants can be as well."

Page said Cannabis sativa is the first medicinal plant to have its genome sequenced, following the decoding of non-medicinal plants like rice and corn.

Surprisingly, the genome for the opium poppy has not yet been sequenced, perhaps in part because it is estimated to be three to four times larger than that of Cannabis sativa.

"But the way things are going," said Page of the speed at which sequencing can now be accomplished, "I would fathom it's right around the corner."