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Landrace.wiki
The open database for landrace cannabis populations, their genetics and the traditional knowledge that sustains them.
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ZOM-THA-PHU-0120250002
Ta Lo Farm 'Tiger Tail' Selection 2024 is a domesticate landrace cannabis accession collected by Isabella of the Zomia Collective in Sakhon Nakhon Province, Thailand.
Genetic diversity
{{Genetics series
|image=Cannabis-landrace-diversity.jpg |alt=A stand of cannabis plants of visibly varied height, branching and leaf form grown from a single landrace seed lot. |caption=Variation within one cannabis landrace population. Because cannabis is an obligate outcrosser, individuals in a traditional population are genetically distinct, and the population itself holds much of the species' diversity.
}}Genetic diversity in Cannabis is the range of alleles and genotypes carried within the species, among its populations and within an individual plant. It spans the deep division between fibre-and-seed hemp and drug-type cannabis, the differentiation among regional landraces and the variation in chemical profile from one population to the next.
Genetic diversity is the raw material of adaptation and breeding: it underlies the crop's spread across latitudes and the range of chemotypes and fibre, seed and drug forms selected from it. Its loss is a central concern of cannabis conservation, because the displacement of many locally adapted landraces by a few widely grown modern cultivars, together with gene flow from those cultivars into surviving traditional populations, narrows the pool of variation that future selection can draw on.
Diversity in cannabis is organised mainly by use-type and geography rather than by the familiar "sativa" and "indica" labels of commerce, which correspond poorly to genetic identity. … read more →
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We are witnessing the rapid disappearance of traditional cultivation knowledge and genetic diversity in cannabis. These landrace populations represent thousands of years of natural and human selection, containing unique genetic traits and chemical profiles. Systematic documentation and conservation efforts can serve as a bridge, preserving irreplaceable genetic heritage while supporting traditional communities and advancing our understanding of this remarkable plant.
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30 July 2026
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