Genome-Wide Identification and Characterization of Long Non-Coding RNAs in Litchi
DOI:
https://doi.org/10.66835/psh.2026.e0005Keywords:
Litchi, lncRNA, Transcriptome, Target mimics, RegulationAbstract
Long non-coding RNAs (lncRNAs) play key regulatory roles in different developmental processes and responses to stress. However, the bioinformatic identification of lncRNAs in litchi are largely unknown. To explore the lncRNA profiles and functions in litchi different tissues, we performed RNA sequencing of litchi leaves, pericarp, seeds, flowers fruitlet, and carpopodium, with varying biological replicates for each. We identified 2229 lncRNAs including average 293 lncRNAs were significantly differentially expressed (DE) in all the tissues used in this study. The Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses were carried out to identify the cis target gene of DE lncRNAs. The results showed that the lncRNAs might play an important role in the immune response, response to abiotic stress, and metabolic processes related to fatty acids and glucose. Moreover, we identified lncRNAs associated with miRNAs, including lncRNAs acting as precursors for miR156, miR171, miR172, miR319, miR393, miR396, and miR482, as well as lncRNAs targeted by these miRNAs. The results suggest that the lncRNAs can regulate the expression of mRNA during litchi growth and development by forming competitive endogenous RNA, and further regulate various biological metabolism pathways in litchi.
References
[1] M. Nirenberg, Historical review: Deciphering the genetic code 2013; a personal account, Trends in Biochemical Sciences, vol. 29, no. 1, pp. 46-54, 2004.
[2] E. E. Schadt, S. Turner, and A. Kasarskis, A window into third-generation sequencing, Human Molecular Genetics, vol. 19, no. R2, pp. R227-R240, 2010.
[3] M. Waseem, Y. Liu, and R. Xia, Long Non-Coding RNAs, the Dark Matter: An Emerging Regulatory Component in Plants, International Journal of Molecular Sciences, vol. 22, no. 1, p. 86, 2021.
[4] J. Jin, J. Liu, H. Wang, L. Wong, and N.-H. Chua, PLncDB: plant long non-coding RNA database, (in eng), Bioinformatics (Oxford, England), vol. 29, no. 8, pp. 1068-1071, 2013.
[5] N. Nejat and N. Mantri, Emerging roles of long non-coding RNAs in plant response to biotic and abiotic stresses, Critical reviews in biotechnology, vol. 38, no. 1, pp. 93-105, 2018.
[6] H. Zhang, H. Guo, W. Hu, and W. Ji, The Emerging Role of Long Non-Coding RNAs in Plant Defense Against Fungal Stress, International Journal of Molecular Sciences, vol. 21, p. 2659, 04/11 2020.
[7] J. B. Heo and S. Sung, Vernalization-mediated epigenetic silencing by a long intronic noncoding RNA, (in eng), Science, vol. 331, no. 6013, pp. 76-9, Jan 7 2011.
[8] Y. Wang et al., Arabidopsis noncoding RNA mediates control of photomorphogenesis by red light, Proceedings of the National Academy of Sciences, vol. 111, no. 28, p. 10359, 2014.
[9] C. Gong and L. E. Maquat, lncRNAs transactivate STAU1-mediated mRNA decay by duplexing with 3′ UTRs via Alu elements, Nature, vol. 470, no. 7333, pp. 284-288, 2011.
[10] J. Bazin, K. Baerenfaller, S. J. Gosai, B. D. Gregory, M. Crespi, and J. Bailey-Serres, Global analysis of ribosome-associated noncoding RNAs unveils new modes of translational regulation, Proceedings of the National Academy of Sciences, vol. 114, no. 46, pp. E10018-E10027, 2017.
[11] H. Wang et al., Genome-wide identification of long noncoding natural antisense transcripts and their responses to light in Arabidopsis, Genome Research, vol. 24, no. 3, pp. 444-453, 2014.
[12] C. Di et al., Characterization of stress‐responsive lncRNAs in A rabidopsis thaliana by integrating expression, epigenetic and structural features, The Plant Journal, vol. 80, no. 5, pp. 848-861, 2014.
[13] Y.-C. Zhang et al., Genome-wide screening and functional analysis identify a large number of long noncoding RNAs involved in the sexual reproduction of rice, Genome Biology, vol. 15, no. 12, pp. 1-16, 2014.
[14] M. Wang et al., Long noncoding RNAs and their proposed functions in fibre development of cotton (Gossypium spp.), New Phytologist, vol. 207, no. 4, pp. 1181-1197, 2015.
[15] S. Li et al., Genome-wide identification and functional prediction of cold and/or drought-responsive lncRNAs in cassava, (in eng), Scientific Reports, vol. 7, p. 45981, Apr 7 2017.
[16] L. Kong et al., CPC: assess the protein-coding potential of transcripts using sequence features and support vector machine, (in eng), Nucleic Acids Research, vol. 35, no. Web Server issue, pp. W345-9, Jul 2007.
[17] T. R. Mercer, M. E. Dinger, and J. S. Mattick, Long non-coding RNAs: insights into functions, Nature Reviews Genetics, vol. 10, no. 3, pp. 155-159, 2009.
[18] L. Ou et al., Noncoding and coding transcriptome analysis reveals the regulation roles of long noncoding RNAs in fruit development of hot pepper (Capsicum annuum L.), Plant Growth Regulation, vol. 83, no. 1, pp. 141-156, 2017/09/01 2017.
[19] B. Z. Zhu et al., RNA sequencing and functional analysis implicate the regulatory role of long non-coding RNAs in tomato fruit ripening, Joural of Experimental Botany, vol. 66, 2015// 2015.
[20] L. Li et al., Genome-wide discovery and characterization of maize long non-coding RNAs, Genome Biology, vol. 15, 2014// 2014.
[21] M. Zhu et al., A new tomato NAC (NAM/ATAF1/2/CUC2) transcription factor, SlNAC4, functions as a positive regulator of fruit ripening and carotenoid accumulation, Plant Cell Physiology, vol. 55, 2014// 2014.
[22] I. Ulitsky, A. Shkumatava, C. H. Jan, H. Sive, and D. P. Bartel, Conserved function of lincRNAs in vertebrate embryonic development despite rapid sequence evolution, Cell, vol. 147, no. 7, pp. 1537-1550, 2011.
[23] Z. Tang et al., Comprehensive analysis of long non-coding RNAs highlights their spatio-temporal expression patterns and evolutional conservation in Sus scrofa, Scientific Reports, vol. 7, no. 1, pp. 1-12, 2017.
[24] X. W. Xu, X. H. Zhou, R. R. Wang, W. L. Peng, Y. An, and L.-L. Chen, Functional analysis of long intergenic non-coding RNAs in phosphate-starved rice using competing endogenous RNA network, Scientific reports, vol. 6, no. 1, pp. 1-12, 2016.
Downloads
Additional Files
Published
Data Availability Statement
The data supporting the findings of this study are publicly available as supplementary files. All relevant information is included within the manuscript.
Issue
Section
License
Copyright (c) 2026 Muhammad Waseem, Sana Basharat, Iffat Shaheen, Pingwu Liu (Author)

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.