Skip to main content
Log in

QTL mapping of adult-plant resistance to leaf rust based on SSR markers and SNP sequencing of Chinese wheat landrace Xu’ai (Triticum aestivum L.)

  • Research Article
  • Published:
Genetic Resources and Crop Evolution Aims and scope Submit manuscript

Abstract

Leaf rust (Puccinia recondite f. sp. Tritici) is the prevalent wheat (Triticum aestivum) disease in many areas of the world. The preferred method of control is to introduce resistance genes against this disease into elite wheat germplasm, an approach that is more environmentally friendly than applying fungicides and that has underpinned sustained wheat production to date. Identifying new adult-plant resistance (APR) genes and quantitative trait loci (QTL) for leaf rust resistance can expand the sources of disease resistance and contribute to breeding for durable resistance, allowing the pyramiding of multiple APR genes in elite wheat lines. In this study, simple sequence repeat (SSR) markers, together with the bulked segregant and single nucleotide polymorphism analyses (BSA and SNP), were used to identify QTL in F2:3 lines derived from Xu’ai and Zhengzhou 5389. Yield data for the population lines were used to detect QTL by inclusive composite interval mapping analysis. Six QTL were identified, namely, QLr.hebau-1BL, QLr.hebau-2AS, QLr.hebau-2BS, QLr.hebau-2BL, QLr.hebau-4B and QLr.hebau-6AL. Both QLr.hebau-2BS and QLr.hebau-4B were detected in five environments, explaining 23.1–37.5% and 7.6–18.3% of the phenotypic variation for resistance, respectively. After analysis, QLr.hebau-1BL and QLr.hebau-4B were identified as Lr46 and Lr12, respectively. QLr.hebau-2BS is very close to the temperature-sensitive gene LrZH22, but requires further detection. QLr.hebau-2AS, QLr.hebau-2BL and QLr.hebau-6AL constitute new resistance loci. These genes or QTL for reduced disease severity were derived from the resistant parent Xu’ai. The QTL identified and their flanking markers could be useful for fine mapping and marker-assisted selection (MAS).

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

Similar content being viewed by others

References

Download references

Acknowledgements

This study was supported by the National Key Research and Developmental Project of China (selection and efficient combination model of wheat and maize water saving, high yield and high quality varieties) (Grant No.2017YFD0300901).

Author information

Authors and Affiliations

Authors

Contributions

Design of the research: ZY; performance of the research: XX, JS; data analysis and interpretation: XX, ZD, XL, ZY; plant collection: ZY; and writing of the manuscript: XX, ZD, ZY.

Corresponding author

Correspondence to Zhanjun Yao.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Human and animal rights

This article does not contain any studies with human or animal subjects.

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.

Supplementary file1 (DOCX 20 kb)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Xu, X., Duan, Z., Su, j. et al. QTL mapping of adult-plant resistance to leaf rust based on SSR markers and SNP sequencing of Chinese wheat landrace Xu’ai (Triticum aestivum L.). Genet Resour Crop Evol 68, 1359–1373 (2021). https://doi.org/10.1007/s10722-020-01067-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10722-020-01067-3

Keywords

Navigation