In Silico Analysis of Genes and Promoter regions elements in Brassica napus for Agrobacterium-Mediated Genetic Transformation
Published 2025-12-16
Keywords
- Agrobacterium-Mediated Genetic Transformation,
- Brassica napus,
- cis regulatory elements,
- In silico-analysis,
- Promoter
How to Cite
Copyright (c) 2025 Faizan, Allah jurio khaskheli, Shahla, Muharam Ali, Kaleemullah, Muhazzam Anwar, Amir, Ghulam Nabi

This work is licensed under a Creative Commons Attribution 4.0 International License.
Abstract
This study employed in-silico tools to analyze gene sequences and promoter regions in Brassica napus for optimizing Agrobacterium-mediated transformation. Candidate genes, particularly Auxin Response Factor (ARF) genes, were identified through transcriptome mining and validated via BLAST and ORF analysis. Promoter regions (−1500 bp) were screened using PlantCARE and MEME Suite to identify cis-regulatory elements related to stress tolerance and transformation efficiency. Conserved motifs such as ABRE, TATA-box, CAAT-box, and hormone-responsive elements (AuxRE, GARE, and MYB) were identified in key ARF genes (e.g., Bra005465, Bra016492), indicating roles in drought and salinity response. Phylogenetic analysis revealed evolutionary conservation of ARFs across Brassica species and Arabidopsis, supporting their regulatory roles. Non-coding regions, especially UTRs and introns, exhibited variability and included alternative splicing sites and miRNA binding motifs, suggesting complex post-transcriptional regulation. Heatmap and cluster analyses showed coregulation patterns among stress-responsive promoters. Additionally, tissue culture trials identified MS medium with optimized growth regulators as most effective for callus induction and regeneration. This integrated bioinformatics and experimental approach highlights key genetic components for improving transformation efficiency and stress resilience in Brassica napus, laying groundwork for targeted crop improvement strategies
References
- Chhikara, S., Chaudhary, D., Yadav, M., Sainger, M., Jaiwal, P.K. (2012). A non-tissue culture approach for developing transgenic Brassica juncea L. plants with Agrobacterium tumefaciens.Vitro Cellular & Developmental Biological Plant, 48, 7–14.
- Ford-Lloyd, B. V., Dulloo, E., Toledo, A. (2011). Crop wild relatives - undervalued, underutilized and under threat. BioScience61 (7), 559–565.
- Girke, A., Schierholt, A., Becker, H. C. (2012). Extending the rapeseed genepool with resynthesized Brassica napus L. I: Genetic diversity. Genetic Resources and Crop Evolution,59 (7), 1441–1447.
- Good AG., Shrawat AK., Muench DG. (2004). Can less yield more? Is reducing nutrient input into the environment compatible with maintaining crop production? Trends Plant Science, 9(12):597–605.
- Grace, F. S. S., Wiepking, S., & van Zundert, A. A. J. (2021). Hot topics in anaesthesia: A bibliometric analysis of five high-impact journals from 2010–2019. Scientometrics, 126(10), 8749–8759.
- Hassan, M. I., Al-Dosary, M. A., & Al-Omran, A. M. (2021). Advances in Brassica napus genetic transformation: From basics to improvements. Biotechnology Reports, 29, e00600.
- Hellens, R.P., Edwards, A., Leyland, N.R., Bean, S. & Mullineaux, P.M. (2000). Green: a versatile and flexible binary Ti vector for Agrobacterium-mediated plant transformation. Plant Molecular Biology, 42, 819–832.
- Huang, J., Wang, L., & Feng, Z. (2022). Bioinformatics approaches to minimize offtarget effects in plant genetic engineering. Frontiers in Plant Science,13, 1123.
- Kumar, R., Singh, P., & Verma, D. (2023). Enhanced Agrobacterium-mediated transformation in oilseed crops: Advances in strain modifications and virulence gene engineering. Plant Cell Reports, 42(2), 345–360.
- Liu, W., Yang, Y., Liu, Q. (2018). Establishment of an efficient regeneration system using heading leaves of Chinese cabbage (Brassica rapa L.) and its application in genetic transformation. Horticulture Environment Biotechnology,59, 583–596.
- Park, H., Lee, J., & Kim, S. (2023). Transcriptomic analysis of Brassica napus responses to Agrobacterium infection reveals key regulatory pathways for improved transformation efficiency. Scientific Reports, 13(1), 11234.
- Qian, B., Jing, Q., Bélanger, G., Shang, J., Huffman, T., Liu, J., et al. (2018). Simulated canola yield responses to climate change and adaptation in Canada. Agronomy Journal,110 (1), 133–146.
- Vincent, H., Wiersema, J., Kell, S., Fielder, H., Dobbie, S., Castañeda-Álvarez, N. P. (2013). A prioritized crop wild relative invesntory to help underpin global food security.Biological Conservation,167, 265–275.
- Wang, P., Xiong, X., Zhang, X., Wu, G., & Liu, F. (2022). A review of erucic acid production in Brassicaceae oilseeds: Progress and prospects for the genetic engineering of high and low-erucic acid rapeseeds (Brassica napus). Frontiers in Plant Science, 13, 899076.
- Zakaria, A., Ahmi, A., Ahmad, A. H., & Othman, Z. (2021). Worldwide melatonin research: A bibliometric analysis of the published literature between 2015 and 2019. Chronobiology International, 38(1), 27–37.
- Zhao, Y.G., Ofori, A., & Lu, C.M. (2009). Genetic diversity of European and Chinese oilseed Brassica rapa cultivars from different breeding periods. Agriculture Science China, 8, 931–938.