The study was led by Ren Guangpeng, a botanist at Lanzhou University in the western Chinese province of Gansu. Dr. Ren said in an interview that the original site of cannabis domestication was most likely northwestern China, and that the finding could help with current efforts in the country to breed new types of hemp.
Dr. Fumagalli and his colleagues then extracted genomic DNA from the samples and sequenced them in a lab in Switzerland. They also downloaded and reanalyzed sequencing data from 28 other samples. The results showed that the wild varieties they analyzed were in fact “historical escapes from domesticated forms,” and that existing strains in China — cultivated and wild — were their closest descendants of the ancestral gene pool.
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People feeling the effects of marijuana are prone to what scientists call “divergent thinking,” the process of searching for solutions to a loosely defined question.
To conduct the study, Dr. Ren and his colleagues collected 82 samples, either seeds or leaves, from around the world. The samples included strains that had been selected for fiber production, and others from Europe and North America that were bred to produce high amounts of tetrahydrocannabinol (THC), the plant’s most mood-altering compound.
Michael Purugganan, a professor of biology at New York University who read the study, said the usual assumption about early humans was that they domesticated plants for food.
Although scientists can make some basic predictions about how a given plant species will diverge in nature, she added, such predictions “go out the window” when a natural selection process is driven by humans.
Genetic sequencing for the latest study suggests that the species has a “single domestication origin” in East Asia, the researchers wrote.
Weed grows naturally all over the world. From the cold-weather mountainside of the Himalayas to the warm and humid climes of Mexico and Jamaica, cannabis can survive under a variety of environments, although better in some than others.
If you’re dead-set on finding wild weed, here are some tips to help you find this naturally-growing plant:
Where does weed grow naturally? Whether you’re curious about its natural habitat or want to start hunting for wild weed, knowing this plant’s favorite growing locations in the wild goes to show how hardy and widespread it has become.
How to Find Wild Weed
Wild cannabis, also known as ditchweed, is a common type of naturally-growing cannabis that grows mainly in the United States. Ditchweed refers to a type of marijuana that grows wild , scattered without having been planted, fertilized, or tended to.
Today, it’s not as easy as taking a joyride around your town to find wild weed, but it can be done with a little hard work, patience, and perseverance. Along the side of the road in the country. In a long neglected open patch of field. Amongst wild plants growing in the mountainside. Cannabis can be found in the unlikeliest of places.
In the 1950s, hemp production was halted, but by then, it’s cultivation was rampant. Since then, its seeds have spread across great distances in the U.S.
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Over the years, it’s been linked with high-THC cannabis and hundreds of millions of dollars have been spent to eradicate it in the US.