What topics does this cannabis study cover?

This study covers research on: Terpenes.

Where was this research published?

Published in Acta pharmaceutica Sinica. B on March 24, 2026.

How cannabis genes create its remarkable aroma diversity

Q: What did this research study find?

Researchers identified **227 volatile terpenes** across cannabis samples, with aroma profiles differing by tissue, development stage, maturity, and cultivar.

Expansion and functional diversification of terpene synthases shape volatile terpenoid landscape in Cannabis sativa.

Acta pharmaceutica Sinica. B • March 24, 2026 • Highly Relevant

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AI Summary

This study mapped how Cannabis sativa produces its diverse volatile aromas by examining terpene-related genes, gene activity, plant chemistry, and enzyme function. Across 28 samples from six cultivars, the researchers identified 227 volatile terpenes—including 88 monoterpenes and 139 sesquiterpenes—with patterns that varied by tissue, developmental stage, plant maturity, and cultivar.

The researchers identified 41 full-length CsTPSDK genes, many of which appear to have diversified through gene expansion and structural differences between haplotypes. Functional testing of six previously unreported enzymes showed that they can produce different mono- and sesquiterpenes, sometimes using substrates in unexpectedly flexible ways. The findings help explain why cannabis cultivars can differ so strongly in aroma and provide a foundation for future breeding and metabolic engineering. However, the abstract does not demonstrate that particular terpene profiles directly change the effects of THC or CBD in cannabis users.

💡 Key Findings

Researchers identified 227 volatile terpenes across cannabis samples, with aroma profiles differing by tissue, development stage, maturity, and cultivar.

High

85%

The study cataloged 41 full-length CsTPSDK genes, revealing substantial expansion and structural divergence among terpene synthase genes.

High

85%

Functional tests of six previously unreported enzymes found diverse mono- and sesquiterpene-producing activities, including unexpected substrate flexibility.

High

80%

The findings provide a genetic and biochemical foundation for cultivar improvement and targeted terpene engineering, but the abstract does not establish direct effects on human cannabis experiences.

High

90%

📄 Original Abstract

Terpenoids are key specialized metabolites in Cannabis sativa, shaping cultivar-specific aromas and potentially modulating cannabinoid effects. This study provided a comprehensive analysis of the terpene synthase (TPS) gene family in C. sativa, integrating haplotype-resolved genomic data, volatile terpene profiling, transcriptomics, and functional assays. The comprehensive volatile terpene profiling across 28 spatiotemporal samples spanning weekly developmental intervals and distinct maturity stages from six cultivars identified 227 cannabis volatile terpenes, including 88 monoterpenes and 139 sesquiterpenes, exhibiting distinct tissue, developmental stage, and cultivar-specific patterns. Comparative expression and co-expression network analysis revealed coordinated regulation between MEP/MVA pathways, TPS, and cannabinoid genes, underscoring a shared metabolic foundation. Genome annotation identified 41 full-length CsTPSDK genes, exhibiting extensive expansion and subfamily-specific clusters with structural divergence between haplotypes. Transcript profiling across developmental stages and cultivars distinguished a core set of highly expressed inflorescence-associated CsTPSs from genes exhibiting cultivar-specific regulation. Functional characterization of six previously unreported CsTPSDKs uncovered diverse mono- and sesquiterpene synthase activities, including unexpected substrate promiscuity across subfamilies. These findings deliver the most comprehensive functional annotation of the C. sativa TPS repertoire to date, elucidating the genetic and biochemical bases of terpene diversity and providing a foundation for targeted metabolic engineering and cultivar improvement.

Paper Type

📄 Research

Publication

Journal: Acta pharmaceutica Sinica. B
Published: March 24, 2026
PMID: 42592043
DOI: 10.1016/j.apsb.2026.03.035

Authors (13)

Yaolei Mi Key Laboratory of National Forestry and Grassland Administration on Chinese Herbal Medicine, College of Life Science, Northeast Forestry University, Harbin 150040, China.
Mofan Zhang State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
Kaiquan Zhang Key Laboratory of National Forestry and Grassland Administration on Chinese Herbal Medicine, College of Life Science, Northeast Forestry University, Harbin 150040, China.
Jun Li State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
Song Yan Pharmacy of College, Heilongjiang University of Chinese Medicine, Harbin 150040, China.
+8 more authors