Skip to main content
Log in

Comparative Expression Profile of Genes Encoding Intolerant Proteins in Bread vs. Durum Wheat During Grain Development

  • Published:
Journal of Plant Growth Regulation Aims and scope Submit manuscript

Abstract

Wheat is the major cereal crop in the world. While wheat proteins provide the nutritional requirement for humans, the major concern associated with them is their intolerance among a large genetically predisposed population. These proteins include gluten, albumins like amylase/trypsin inhibitors (ATIs), serpins, thionins, and defensins. In this study, we performed a comparative (bread vs. durum wheat) expression analysis of the genes encoding for different intolerant proteins (IP) during grain development, through transcriptomics approach. Two libraries were generated from each genotype with an average of 103.81 million reads, resulting in 121.3K transcripts for bread wheat; and 75.20 million reads resulting in 117.7K transcripts for durum wheat. RNA-seq results were validated through qRT-PCR. All transcripts related to IPs were extracted; 146 and 133 transcripts were identified in case of bread and durum wheat, respectively. However, only five IP genes were differentially expressed (DEGslog2fold>2) and all of them were classified under the GO terms ‘Molecular Function’. For comparative expression of the IP genes between the two genotypes, fragments per kilobase of exon model per million reads mapped (FPKM) values of each gene were studied. None of the IP transcripts were falling in any pathway, that is because these IPs are synthesized from the genes through transcription followed by translation. These IPs, during grain development, belonged to the major categories of thionin, serpin, ATI, gliadin and glutenin. Bread wheat was expressing a greater number of IP genes and mostly they were upregulated in comparison to the durum wheat. Highest numbers of IP transcripts were mapped on the BB genome; and maximum IP genes were located in chromosome1D. IP genes with higher expression in both the genotypes were further analysed for their stage-specific expression during grain development. Thionins, gliadins and glutenins were mainly expressed at 4–5 weeks after anthesis (WAA); whereas, serpins and ATIs were expressed at 3–4 WAA. The expression of thionin and serpin genes was comparatively low throughout the grain development process, when compared to other IPs. We have also analysed the transcripts related to amylose and amylopectin biosynthesis, where durum wheat showed a high amylose: amylopectin ratio in comparison to bread wheat. Our study through transcriptome analysis is another support for the hypothesis that tetraploid durum wheat is less intolerant and better for consumption for the vulnerable population than that of hexaploid bread wheat.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

References

Download references

Acknowledgements

Authors acknowledge the financial support by CRP on Biofortification, Indian Council of Agricultural Research (ICAR) and Department of Biotechnology, Govt. of India for carrying out the work. Authors would also like to acknowledge the support and guidance provided by the Director, ICAR-National Institute for Plant Biotechnology, New Delhi.

Funding

Research work for this study was funded by Indian Council of Agricultural Research—Consortium Research Project on Biofortification vide Sanction Order F.No. CS/F.No.16-8/2017-IA IV dated 26th October 2017 and Department of Biotechnology, Govt. of India vide Sanction Order No. BT/PR7469/FNS/20/733/2013 dated 10th September 2014.

Author information

Authors and Affiliations

Authors

Contributions

Conceptualization, PKM and MK; Data curation, PKM; Formal analysis, MK and EM; Funding acquisition, PKM; Investigation, PKM; Methodology, MK; Project administration, PKM; Resources, PKM; Software, MK, EM; Supervision, PKM; Validation, MK; Visualization, PKM GM, AM; Writing—original draft, MK; Writing—review and editing PKM, AM, GM, SM, MK, EM. All authors contributed to the article and approved the submitted version.

Corresponding author

Correspondence to Pranab Kumar Mandal.

Ethics declarations

Conflict of interest

The authors declare no financial and non-financial competing interest.

Additional information

Handling Editor: Weiwei Qi.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

Rights and permissions

Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Kaushik, M., Mulani, E., Mahendru-Singh, A. et al. Comparative Expression Profile of Genes Encoding Intolerant Proteins in Bread vs. Durum Wheat During Grain Development. J Plant Growth Regul 42, 3200–3210 (2023). https://doi.org/10.1007/s00344-022-10785-0

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00344-022-10785-0

Keywords

Navigation