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where does weed grow

Where does weed grow

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.

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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.

A 2016 study by other scientists said that the earliest records for cannabis were mostly from China and Japan, but most botanists believe that it was probably first domesticated in the eastern part of Central Asia, where wild varieties of the plant are widespread.

“By the way, that’s the reason you call it weed, because it grows anywhere,” he added.

Here’s one to ponder: Where did the weed come from? No, not where it was bought, but where and when was the plant first domesticated?

But Professor Purugganan said he was skeptical about conclusions that the plant was developed for drug or fiber use 12,000 years ago since archaeological evidence show the consistent use or presence of cannabis for those purposes began about 7,500 years ago.

“That seems to be the most pressing problem for humans then: How to get food,” said Professor Purugganan, who was not involved in the research. “The suggestion that even early on they were also very concerned with fiber and even intoxicants is interesting. It would bring to question what were the priorities of these Neolithic societies.”

“I would like to see a much larger study with a larger sampling,” he said.

Scientists finally have an answer to that question — and the evolution of modern-day cannabis and how it diverged from its very close relative hemp is even wilder than you might think.

As the researchers note: “Few crops have been under the spotlight of controversy as much as Cannabis sativa.” Their findings shed light on the complex history of cannabis evolution and domestication, helping us understand how it became the controversial crop it is today.

The researchers state: “As such, the results call into question, from both a biological and functional point of view, the current binary categorization of Cannabis plants as ‘hemp’ or ‘marijuana.’”