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Volume 15
Issue 11
10.3390/plants15111600
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Communication

Identification of LiMYC and LiTPS Gene Families Involved in MeJA-Induced Terpene Accumulation in Lagerstroemia indica ‘Whit III’

by
Jingyun Wang
,
Hao Dou
,
Ziwei Yue
,
Yan Xu
and
Ming Cai
*
Beijing Key Laboratory of Ornamental Plants Germplasm Innovation & Molecular Breeding, National Engineering Research Center for Floriculture, School of Landscape Architecture, Beijing Forestry University, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Plants 2026, 15(11), 1600; https://doi.org/10.3390/plants15111600
Submission received: 25 March 2026 / Revised: 15 May 2026 / Accepted: 19 May 2026 / Published: 22 May 2026
(This article belongs to the Special Issue Physiological Function of Jasmonic Acid-Mediated Signaling Pathway in Plants)
Versions Notes

Abstract

Methyl jasmonate (MeJA) is a key regulator of plant defense and abiotic stress responses, while terpenoids are important secondary metabolites. However, the effects of MeJA on floral volatiles in Lagerstroemia indica and the underlying mechanisms remain unclear. In L. indica ‘Whit III’, MeJA treatment rapidly increased the emission of monoterpenes (e.g., citronellol) and sesquiterpenes (e.g., trans-farnesol) and advanced the peak emission time. We identified 34 LiTPS and 22 LiMYC genes in the genome, with promoter regions enriched in JA-responsive cis-elements. Expression analysis showed that LiMYC genes encoding putative JA repressors were transiently upregulated, whereas LiTPS genes located in a chromosome 11 cluster and LiTPS13 (7.33-fold induction) were strongly activated. These results suggest that MeJA may promote an early scent production through the coordinated activation of specific LiMYC and LiTPS gene sets, pointing to a potential mechanism by which jasmonate signaling modulates floral volatile emission.
Keywords: Lagerstroemia indica; methyl jasmonate; terpene synthesis; MYC transcription factor; floral volatile Lagerstroemia indica; methyl jasmonate; terpene synthesis; MYC transcription factor; floral volatile

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MDPI and ACS Style

Wang, J.; Dou, H.; Yue, Z.; Xu, Y.; Cai, M. Identification of LiMYC and LiTPS Gene Families Involved in MeJA-Induced Terpene Accumulation in Lagerstroemia indica ‘Whit III’. Plants 2026, 15, 1600. https://doi.org/10.3390/plants15111600

AMA Style

Wang J, Dou H, Yue Z, Xu Y, Cai M. Identification of LiMYC and LiTPS Gene Families Involved in MeJA-Induced Terpene Accumulation in Lagerstroemia indica ‘Whit III’. Plants. 2026; 15(11):1600. https://doi.org/10.3390/plants15111600

Chicago/Turabian Style

Wang, Jingyun, Hao Dou, Ziwei Yue, Yan Xu, and Ming Cai. 2026. "Identification of LiMYC and LiTPS Gene Families Involved in MeJA-Induced Terpene Accumulation in Lagerstroemia indica ‘Whit III’" Plants 15, no. 11: 1600. https://doi.org/10.3390/plants15111600

APA Style

Wang, J., Dou, H., Yue, Z., Xu, Y., & Cai, M. (2026). Identification of LiMYC and LiTPS Gene Families Involved in MeJA-Induced Terpene Accumulation in Lagerstroemia indica ‘Whit III’. Plants, 15(11), 1600. https://doi.org/10.3390/plants15111600

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