Evidence map›Paper›PMID 41952238›Full record

ArticleMolecular horticulture2026

High-quality genome assembly of Aglaia odorata reveals evolution, terpenes diversity and abundance in Meliaceae.

Zhiyu Chen, Xingyu Yang, Tianyu Yang, Xin Yin, Danni Yang, Xuefei Yang, Yunqiang Yang, Yongping Yang

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In one paragraph

Article in Molecular horticulture, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

8 authors.

Zhiyu Chen *CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, 650223, China.
Xingyu Yang *CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, 650223, China.
Tianyu Yang *Plant Germplasm and Genomics Center, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
Xin YinCAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, 650223, China.
Danni YangCAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, 650223, China.
Xuefei YangKey Laboratory of Economic Plants and Biotechnology, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, 650201, China. xuefei@mail.kib.ac.cn.
Yunqiang YangCAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, 650223, China. yangyunqiang@xtbg.ac.cn.ORCID http://orcid.org/0009-0009-4688-7990
Yongping YangCAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, 650223, China. yangyp@xtbg.ac.cn.

Funding

Regional Science and Technology Collaborative Innovation Project of Shigatse Bureau of Science and Technology QYXTZX-RKZ2022-01The Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences Nos. 2015CASEABRIRG001Trans-boundary cooperation on biodiversity research and conservation in Gaoligong Mountains No. E1ZK251Yunnan Province Science and Technology Department No. 202203AP140007
6 · The paper itself

Abstract

Meliaceae species are known for producing diverse metabolites, yet the role of whole-genome duplication (WGD) in shaping this diversity remains unclear. In this study, we analyzed volatile metabolites in Azadirachta indica, Toona ciliata and Aglaia odorata, finding terpenes to be most abundant in A. odorata. A high-quality genome assembly of A. odorata revealed lineage-specific whole-genome triplication (WGT), the first reported in Meliaceae. Comparative genomics indicated extensive chromosomal rearrangements, biased gene retention, gene expression, and long terminal repeat (LTR) insertions during the evolution of subgenomes in Meliaceae, with A. odorata showing subgenome dominance. Despite a reduction in terpene synthase (TPS) gene copies, the specifically highly expression of AodTPS25, AodTPS21, AodTPS24 and AodTPS26 in A. odorata could be crucial for its terpene abundance and diversity through transcriptomics and enzyme assays. Moreover, the ethylene response factor AodERF27 was found to activate AodTPS26, linking transcriptional regulation to terpene diversity. These findings uncovered the genomic and molecular mechanisms in Meliaceae.

Indexed as

MeliaceaeSubgenome dominanceTerpene biosynthesisTranscription regulationWhole-genome triplication

Identifiers

PMID41952238
PMCPMC13063475

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