The cannabis was cultivated for the first time by humans about 12,000 ago years in China, according to a analysis-based study of plant genomes from around the world.
According to him study, published on Friday in the magazine Science Advances, the genomic history of the domestication of cannabis it had not been sufficiently studied compared to other species, largely due to legal restrictions.
The researchers collected 110 genomes comprehensive services covering the entire spectrum of cannabisFrom wild plants to modern hybrids used for hemp and drugs, through cultivars, that is, artificially bred plant species.
The study claims to have determined “the time and origin of domestication, the patterns of divergence after the domestication and current genetic diversity“.
Our genomic dating suggests that the first domesticated ancestors of hemp and drug types diverged from basal cannabis “about 12,000 years ago,” indicating that the species had already been domesticated in the early Neolithic, “the study notes.
Contrary to a widely accepted opinion, which associates cannabis with a center of domestication of crops in Central Asia, our results are consistent with a single origin of domestication of ‘cannabis sativa’ in East Asia, which agrees with the first archaeological evidence “said the authors.
Cannabis has been used for thousands of years for tissues, as well as for its medicinal and psychotropic properties.
The evolution of cannabis genome suggests that the plant was cultivated for multiple purposes for several millennia, according to the same study.
It is believed that the current varieties of hemp and drugs have their origin in selective breeding started about 4,000 years ago, optimized for the production of fiber or cannabinoids.
Selection resulted in tall, branchless hemp plants with more fiber in the main stem, and short, well-branched marijuana plants, with more flowers, which maximizes resin production.
The study was led by Luca fumagalli, from the University of Lausanne, and included scientists from Great Britain, China, India, Pakistan, Qatar and Switzerland.