Research:2026-07-23/Preprint/a-small-number-of-major-qtl-clusters-underpin-cannabinoid-and-monoterpene-diversity-in-cannabis-sativa

ResearchPreprint23 July 2026

A small number of major QTL clusters underpin cannabinoid and monoterpene diversity in Cannabis sativa

Rekhamani Das, Erwin Tandayu, Razlin Azman Halimi, Nicolas Dimopoulos, Paolo Miguel Siazon, Jos Cornelis Mieog, Tobias Kretzschmar

SSRN

Maps quantitative trait loci for major cannabinoids and terpenes in an F2 population of 155 female plants from a cross between a CBD-dominant and a THC-dominant landrace with contrasting monoterpene compositions. The plants were propagated clonally and phenotyped in two protected cropping environments. Four major cannabinoids were controlled by a single locus on chromosome 7 and six abundant monoterpenes by a single locus on chromosome 5, and expression analysis of glandular trichomes from both parents pointed to cannabinoid and terpene synthase candidate genes near the peak markers. The abstract does not name the two landraces.

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DOI10.2139/ssrn.7163823

Record created 15 October 2026maintained by landrace.wiki editorspage history

2026-07-23 2026-10-15 A small number of major QTL clusters underpin cannabinoid and monoterpene diversity in Cannabis sativa Preprint Genetics Rekhamani Das, Erwin Tandayu, Razlin Azman Halimi, Nicolas Dimopoulos, Paolo Miguel Siazon, Jos Cornelis Mieog, Tobias Kretzschmar SSRN 2026 10.2139/ssrn.7163823 https://doi.org/10.2139/ssrn.7163823 Maps quantitative trait loci for major cannabinoids and terpenes in an F2 population of 155 female plants from a cross between a CBD-dominant and a THC-dominant landrace with contrasting monoterpene compositions. The plants were propagated clonally and phenotyped in two protected cropping environments. Four major cannabinoids were controlled by a single locus on chromosome 7 and six abundant monoterpenes by a single locus on chromosome 5, and expression analysis of glandular trichomes from both parents pointed to cannabinoid and terpene synthase candidate genes near the peak markers. The abstract does not name the two landraces.