Skip to main content
Log in

Molecular characterization of the Rpv3 locus towards the development of KASP markers for downy mildew resistance in grapevine (Vitis spp.)

  • Published:
Euphytica Aims and scope Submit manuscript

Abstract

Plasmopara viticola is the oomycete that causes downy mildew in grapevines. Varying levels of resistance to P. viticola across grape cultivars allowed quantitative trait loci to be identified. The Rpv3 locus is located at chromosome 18, in a region enriched in TIR-NBS-LRR genes, and the phenotype associated is a high hypersensitive response. In this work, we aimed to identify candidate genes associated with resistance to downy mildew on the Rpv3 locus and to evaluate their transcriptional profiles in a susceptible and a resistant grapevine cultivar after challenging with P. viticola. Candidate genes were identified by in silico functional enrichment tests. Many predicted genes associated with resistance to diseases were found at the Rpv3 locus. In total, seventeen genes were evaluated by RT-qPCR. Differences in the steady-state expression of these genes were observed between the two cultivars. Four genes were found to be expressed only in Villard Blanc, suggesting their association to the hypersensitivity reaction. Aiming to assist marker assisted-selection for downy mildew resistance, we show the efficient use of a set of SSR markers. Furthermore, from on a set of forty-one Rpv3-located SNPs, whose segregation was tested in the populations studied, the two segregating markers, Rpv3_15 and Rpv3_33, were considered efficient for downy mildew resistance identification. This study presents a genomic characterization of the Rpv3 locus, confirms its involvement in resistance against P. viticola infection and presents promising biotechnological tools for the selection of young resistant individuals.

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

Similar content being viewed by others

References

Download references

Acknowledgements

We are grateful for the financial support from the Embrapa Funding System (SEG code 02.08.07.004.00.05.04, 02.13.03.006.00.02.006 and 02.12.12.003.00.00).

Funding

We are grateful for the financial support from the Embrapa Funding System (SEG code 02.08.07.004.00.05.04, 02.13.03.006.00.02.006 and 02.12.12.003.00.00).

Author information

Authors and Affiliations

Authors

Contributions

L.F.R, J.M., A.W. and D.D.P. conceived original screenings, research plans, designed experiments and analyzed resulting data; L.F.R supervised experiments and writing; J.M., A.W and V.B. performed most experiments; L.F.R, R.T. and D.D.P provided technical assistance and performed the statistical analysis. J.M. and A.W wrote the article with contributions from all authors.

Corresponding author

Correspondence to Luís F. Revers.

Ethics declarations

Conflict of interest

All authors declare to have no competing interests, both financial and non-financial.

Additional information

Publisher's Note

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

Supplementary Information

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Wairich, A., Malabarba, J., Buffon, V. et al. Molecular characterization of the Rpv3 locus towards the development of KASP markers for downy mildew resistance in grapevine (Vitis spp.). Euphytica 218, 5 (2022). https://doi.org/10.1007/s10681-021-02952-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s10681-021-02952-3

Keywords

Navigation