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Horticulturae
Volume 12
Issue 2
10.3390/horticulturae12020249
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Article

Agave triangularis Transcriptome Reveals Candidate SRO Genes Involved in Leaf Development and Stress Response of Agave

by
Huanhuan Qi
1,*,†,
Yuchen Feng
1,2,†,
Liang Chen
3,
Bo Wang
2,
Xiaoli Hu
2,4,
Gang Xu
2,
Jingyi Lu
5,
Shibei Tan
2,
Tao Chen
6 and
Xing Huang
2,7,*
1
School of Life Science and Technology, Wuhan Polytechnic University, Wuhan 430023, China
2
National Key Laboratory for Tropical Crop Breeding, Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou 571101, China
3
College of Horticulture and Landscape Architecture, Hubei Vocational College of Bio-Technology, Wuhan 430070, China
4
College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
5
School of Geography and Planning, Sun Yat-sen University, Guangzhou 510006, China
6
Guangxi Subtropical Crops Research Institute, Nanning 530001, China
7
Sanya Research Institute, Chinese Academy of Tropical Agricultural Sciences, Sanya 572025, China
*
Authors to whom correspondence should be addressed.
†
These authors contributed equally to this work.
Horticulturae 2026, 12(2), 249; https://doi.org/10.3390/horticulturae12020249
Submission received: 29 December 2025 / Revised: 13 February 2026 / Accepted: 17 February 2026 / Published: 19 February 2026
(This article belongs to the Special Issue Recent Advances in the Ecophysiology, Biochemistry, and Stress Adaptation of Succulent Plants)
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Abstract

Agave triangularis Jacobi is an ornamental agave species that represents a valuable genetic resource for enhancing resistance and tolerance in cultivated agaves such as A. tequilana and A. H11648. In this study, we performed the first de novo transcriptome assembly of A. triangularis using Illumina sequencing. A total of 131,321 transcripts were assembled, comprising 119,764,849 bp. Functional annotation revealed a close evolutionary relationship between A. triangularis and Asparagus officinalis, supporting its phylogenetic placement within the Asparagaceae family. We further identified five SRO genes in both A. triangularis and A. H11648. Their expression profiles in A. H11648, analyzed by qRT-PCR, suggested involvement in leaf development. Notably, AhSRO2 and AhSRO3 were significantly up-regulated following oomycete infection, while AhSRO3 was markedly induced under low-temperature stress. These findings highlight AhSRO2 and AhSRO3 as promising candidate genes for further functional investigation. This study provides the first reference transcriptome for A. triangularis, offering a valuable resource for gene discovery and comparative evolutionary studies in agave. The expression patterns of SRO genes establish a framework for understanding their potential roles in leaf development and stress responses, supporting future efforts toward genetic improvement in agave species.
Keywords: Agave triangularis; transcriptome; SRO genes; expression patterns; leaf development; stress response Agave triangularis; transcriptome; SRO genes; expression patterns; leaf development; stress response

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MDPI and ACS Style

Qi, H.; Feng, Y.; Chen, L.; Wang, B.; Hu, X.; Xu, G.; Lu, J.; Tan, S.; Chen, T.; Huang, X. Agave triangularis Transcriptome Reveals Candidate SRO Genes Involved in Leaf Development and Stress Response of Agave. Horticulturae 2026, 12, 249. https://doi.org/10.3390/horticulturae12020249

AMA Style

Qi H, Feng Y, Chen L, Wang B, Hu X, Xu G, Lu J, Tan S, Chen T, Huang X. Agave triangularis Transcriptome Reveals Candidate SRO Genes Involved in Leaf Development and Stress Response of Agave. Horticulturae. 2026; 12(2):249. https://doi.org/10.3390/horticulturae12020249

Chicago/Turabian Style

Qi, Huanhuan, Yuchen Feng, Liang Chen, Bo Wang, Xiaoli Hu, Gang Xu, Jingyi Lu, Shibei Tan, Tao Chen, and Xing Huang. 2026. "Agave triangularis Transcriptome Reveals Candidate SRO Genes Involved in Leaf Development and Stress Response of Agave" Horticulturae 12, no. 2: 249. https://doi.org/10.3390/horticulturae12020249

APA Style

Qi, H., Feng, Y., Chen, L., Wang, B., Hu, X., Xu, G., Lu, J., Tan, S., Chen, T., & Huang, X. (2026). Agave triangularis Transcriptome Reveals Candidate SRO Genes Involved in Leaf Development and Stress Response of Agave. Horticulturae, 12(2), 249. https://doi.org/10.3390/horticulturae12020249

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