Skip to main content

Advertisement

Log in

The development and efficient utilization of molecular markers for the major quantitative trait locus of bacterial wilt resistance in potato

  • Published:
Euphytica Aims and scope Submit manuscript

Abstract

Bacterial wilt, caused by the Ralstonia solanacearum species complex (RSSC), is a severe disease that significantly threatens potato cultivation. Our previous research identified a major strain-specific resistance quantitative trait locus (QTL) on potato chromosome 6, designated as PBWR-6b, which exhibited resistance to Ralstonia pseudosolanacearum (phylotype I/biovar 3) strains of the RSSC, and was most effective at relatively low temperatures. In this study, we compared the nucleotide sequences of one of the candidate genes located within the QTL region of PBWR-6b between the parents used for the QTL analysis. We identified a resistance allele and developed an allele-specific molecular marker (Rbw6-1) for PBWR-6b. This marker assay detected this resistance allele only in genotypes derived from Inca-no-mezame among 107 cultivars and breeding clones; PBWR-6b is thought to have been derived from Solanum tuberosum spp. andigena, which is the hybrid parent of Inca-no-mezame. By utilizing the resistance allele-specific marker, resistant genotypes can be selected from both diploid and tetraploid populations. The inheritance mode of PBWR-6b was then inferred to exhibit dominant inheritance. Furthermore, we developed the Rbw6-2 marker, which can be incorporated into existing multiplex polymerase chain reaction (PCR) methods, to efficiently select resistance genes against bacterial wilt (PBWR-6b), golden cyst nematode (H1), Potato virus Y (Rychc), Potato virus X (Rx1), and late blight (R1 and Saya-akane-derived R2), thus significantly enhancing resistance breeding in potato.

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
Fig. 8

Similar content being viewed by others

Data availability

The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.

References

Download references

Acknowledgements

We thank Dr. Kazuyoshi Hosaka, Obihiro University of Agriculture and Veterinary Medicine, for improving an earlier version of the manuscript. In addition, we thank Dr. Naoyuki Umemoto, RIKEN Center for Sustainable Resource Science, for useful advice on molecular marker development.

Funding

This work was supported by Nagasaki prefectural government.

Author information

Authors and Affiliations

Authors

Contributions

Ippei Habe designed the test and conducted all experimental work. Yu Sakamoto and Kensuke Matsumoto evaluated the cultivars and breeding lines using the DNA markers developed. The manuscript was written by Ippei Habe. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Ippei Habe.

Ethics declarations

Competing interest

The authors have no relevant financial or non-financial interests to disclose.

Additional information

Publisher's Note

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

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (PDF 138 KB)

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) 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

Habe, I., Sakamoto, Y. & Matsumoto, K. The development and efficient utilization of molecular markers for the major quantitative trait locus of bacterial wilt resistance in potato. Euphytica 219, 68 (2023). https://doi.org/10.1007/s10681-023-03187-0

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s10681-023-03187-0

Keywords

Navigation