Genetics and breeding for resistance against four leaf spot diseases in wheat (Triticum aestivum L.)

Pushpendra Kumar Gupta; Neeraj Kumar Vasistha; Sahadev Singh; Arun Kumar Joshi

doi:10.3389/fpls.2023.1023824

Genetics and breeding for resistance against four leaf spot diseases in wheat (Triticum aestivum L.)

Front Plant Sci. 2023 Mar 29:14:1023824. doi: 10.3389/fpls.2023.1023824. eCollection 2023.

Authors

Pushpendra Kumar Gupta^{1

2

3}, Neeraj Kumar Vasistha^{1

4}, Sahadev Singh¹, Arun Kumar Joshi^{3

5}

Affiliations

¹ Department of Genetics and Plant Breeding, Chaudhary Charan Singh University, Meerut, India.
² Murdoch's Centre for Crop and Food Innovation, Murdoch University, Murdoch, WA, Australia.
³ Borlaug Institute for South Asia (BISA), National Agricultural Science Complex (NASC), Dev Prakash Shastri (DPS) Marg, New Delhi, India.
⁴ Department of Genetics-Plant Breeding and Biotechnology, Dr Khem Singh Gill, Akal College of Agriculture, Eternal University, Baru Sahib, Sirmour, India.
⁵ The International Maize and Wheat Improvement Center (CIMMYT), National Agricultural Science Complex (NASC), Dev Prakash Shastri (DPS) Marg, New Delhi, India.

Abstract

In wheat, major yield losses are caused by a variety of diseases including rusts, spike diseases, leaf spot and root diseases. The genetics of resistance against all these diseases have been studied in great detail and utilized for breeding resistant cultivars. The resistance against leaf spot diseases caused by each individual necrotroph/hemi-biotroph involves a complex system involving resistance (R) genes, sensitivity (S) genes, small secreted protein (SSP) genes and quantitative resistance loci (QRLs). This review deals with resistance for the following four-leaf spot diseases: (i) Septoria nodorum blotch (SNB) caused by Parastagonospora nodorum; (ii) Tan spot (TS) caused by Pyrenophora tritici-repentis; (iii) Spot blotch (SB) caused by Bipolaris sorokiniana and (iv) Septoria tritici blotch (STB) caused by Zymoseptoria tritici.

Keywords: PR proteins; necrotrophic effectors; pathogens; resistance genes; sensitivity genes; wheat.

Publication types

Review