By sequencing plant genetic samples, they found that the species was most likely domesticated by the early Neolithic period. They said their conclusions were supported by contemporary pottery and other archaeological evidence found in present-day China, Japan and Taiwan.
However, Professor Purganan says that the plant drugd 12,000 years ago, as archaeological evidence shows that the consistent use or existence of cannabis for those purposes began about 7,500 years ago. Or said he was skeptical of the conclusion that it was developed for textile use.
“I want to see larger studies with more sampling,” he said.
The study’s author and Swiss biologist Luka Fumagari, who specializes in conservation genetics, said the theory of Central Asian origin was primarily based on observational data from wild samples in the region.
“It’s easy to find wild-type samples, but they’re not wild-type,” said Dr. Fumagali. “These are plants that have escaped captivity and re-adapted to the wild environment.”
“By the way, that’s why you call it a weed, because it grows everywhere,” he added.
The study was led by Ren Guangpeng, a botanist at Lanzhou University in Gansu Province, western China. In an interview, Dr. Len said the original location for cannabis domestication was probably northwestern China, and the findings could help current efforts in the country to breed new types of cannabis.
To carry out the study, Dr. Len and his colleagues collected 82 samples of either seeds or leaves from around the world. Samples include strains selected for fiber production and other strains from Europe and North America grown to produce large quantities of the plant’s most mood-altering compound, tetrahydrocannabinol (THC). Was included.
Dr. Fumagalli and his colleagues then extracted genomic DNA from the sample and sequenced them in a Swiss laboratory. We also downloaded and reanalyzed sequence data from 28 other samples. The results show that the wild varieties they analyzed are actually “historical escapes from domesticated forms” and that existing strains of China (cultivated and wild) are the closest offspring of the ancestral gene pool. Shown.
Cannabis cultivated in East Asia, new research suggests
Source link Cannabis cultivated in East Asia, new research suggests