Skip to main content
Log in

Insights obtained using different modules of the cotton uceA1.7 promoter

  • Original Article
  • Published:
Planta Aims and scope Submit manuscript

Abstract

Main conclusion

The structure of the cotton uceA1.7 promoter and its modules was analyzed; the potential of their key sequences has been confirmed in different tissues, proving to be a good candidate for the development of new biotechnological tools.

Abstract

Transcriptional promoters are among the primary genetic engineering elements used to control genes of interest (GOIs) associated with agronomic traits. Cotton uceA1.7 was previously characterized as a constitutive promoter with activity higher than that of the constitutive promoter from the Cauliflower mosaic virus (CaMV) 35S gene in various plant tissues. In this study, we generated Arabidopsis thaliana homozygous events stably overexpressing the gfp reporter gene driven by different modules of the uceA1.7 promoter. The expression level of the reporter gene in different plant tissues and the transcriptional stability of these modules was determined compared to its full-length promoter and the 35S promoter. The full-length uceA1.7 promoter exhibited higher activity in different plant tissues compared to the 35S promoter. Two modules of the promoter produced a low and unstable transcription level compared to the other promoters. The other two modules rich in cis-regulatory elements showed similar activity levels to full-length uceA1.7 and 35S promoters but were less stable. This result suggests the location of a minimal portion of the promoter that is required to initiate transcription properly (the core promoter). Additionally, the full-length uceA1.7 promoter containing the 5′-untranslated region (UTR) is essential for higher transcriptional stability in various plant tissues. These findings confirm the potential use of the full-length uceA1.7 promoter for the development of new biotechnological tools (NBTs) to achieve higher expression levels of GOIs in, for example, the root or flower bud for the efficient control of phytonematodes and pest-insects, respectively, in important crops.

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

Similar content being viewed by others

Abbreviations

GOIs:

Genes of interest

NBTs:

New biotechnological tools

CaMV:

Cauliflower mosaic virus

UTR:

Untranslated region

TSS:

Transcriptional start site

References

Download references

Acknowledgements

We are grateful to EMBRAPA, CAPES, CNPq, INCT PlantStress Biotech, and FAP-DF for providing financial support for this scientific research.

Funding

MFB is grateful to Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) for a post-doctoral research fellowship (PDJ 150936/2018-4). This work was supported by grants from CAPES, CNPq, FAP-DF, INCT, and EMBRAPA.

Author information

Authors and Affiliations

Authors

Corresponding authors

Correspondence to Marcos Fernando Basso or Maria Fatima Grossi-de-Sa.

Ethics declarations

Conflict of interest

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Additional information

Publisher's Note

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

Electronic supplementary material

Below is the link to the electronic supplementary material.

425_2020_3348_MOESM1_ESM.tif

Supplementary file1 (TIF 6714 kb) Overview of the four uceA1.7 modules (highlighted in bold background) aligned with the full-length uceA1.7 promoter. a Module 1 containing 681 bp. b Module 2 containing 792 bp. c Module 3 containing 581 bp. d Module 4 containing 251 bp were planned around the core promoter elements predicted in this study or by Viana et al. (2011). ORF, open reading frame; SC, translation start codon; TSS, transcription start site; 5’ UTR, 5’ untranslated region

425_2020_3348_MOESM2_ESM.tif

Supplementary file2 (TIF 9023 kb) Genetic transformation of Arabidopsis thaliana mediated by Agrobacterium tumefaciens GV3101 strain. a Six independent events from each full-length promoter (uceA1.7 and CaMV 35S) or four uceA1.7 modules (Mod 1 to 4) were evaluated. b PCR detection of the transgene in A. thaliana T1 events using specific primers for the gfp (green fluorescent protein) reporter gene (Suppl. Table 1). Marker: 1.0-kb DNA ladder (Invitrogen® Cat. #10787018); WT, wild-type A. thaliana line used as a negative control for PCR and RT-qPCR assays; C+, DNA plasmid used as a positive control for the PCR assay

Supplementary file3 (DOCX 15 kb)

Supplementary file4 (DOCX 36 kb)

Supplementary file5 (DOCX 22 kb)

Supplementary file6 (DOCX 49 kb)

Supplementary file7 (DOCX 38 kb)

Supplementary file8 (DOCX 15 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Basso, M.F., Lourenço-Tessutti, I.T., Busanello, C. et al. Insights obtained using different modules of the cotton uceA1.7 promoter. Planta 251, 56 (2020). https://doi.org/10.1007/s00425-020-03348-8

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s00425-020-03348-8

Keywords

Navigation