Characterisation of F3 tomato breeding generations for resistance to Tomato spotted wilt virus and Tomato mosaic virus

Authors

  • Gancho Pasev Agricultural Academy, Maritsa Vegetable Crops Research Institute, Breeding Department, 32 Brezovsko shose Str., Plovdiv, Bulgaria Author https://orcid.org/0000-0002-1920-878X
  • Vesela Radeva-Ivanova Agricultural Academy, Maritsa Vegetable Crops Research Institute, Breeding Department, 32 Brezovsko shose Str., Plovdiv, Bulgaria Author https://orcid.org/0000-0003-1561-9765
  • Veronica Pashkoulova Agricultural Academy, Maritsa Vegetable Crops Research Institute, Breeding Department, 32 Brezovsko shose Str., Plovdiv, Bulgaria Author
  • Stanislava Grozeva Agricultural Academy, Maritsa Vegetable Crops Research Institute, Breeding Department, 32 Brezovsko shose Str., Plovdiv, Bulgaria Author https://orcid.org/0000-0003-4025-7452
  • Daniela Ganeva Agricultural Academy, Maritsa Vegetable Crops Research Institute, Breeding Department, 32 Brezovsko shose Str., Plovdiv, Bulgaria Author https://orcid.org/0000-0001-6055-1785

DOI:

https://doi.org/10.61308/tndj2w05

Keywords:

breeding, resistance, tomato, Tomato mosaic virus, Tomato spotted wilt virus

Abstract

Tomato spotted wilt virus (TSWV) and Tomato mosaic virus (ToMV) are some of the most dangerous viruses affecting tomatoes, because they cause serious damage to tomato production, especially on susceptible local cultivars in Bulgaria. The current study characterises the resistance to TSWV and ToMV of ten F3 tomato crosses by detection of molecular markers for resistance genes Sw5 and Тm22, respectively. Pautaliya and 975 were used as donors of Tm22 in crosses with five susceptible cultivars and 1627 as a donor of Sw5 in crosses with five other susceptible cultivars. Genotyping of 107 plants in total resulted in identifying 20 homozygous for Sw5, 15 homozygous for Tm22 and one homozygous for both genes. Cluster analysis of characteristics such as growth habit, inflorescence type, presence of joint in the pedicel, colour and shape of the fruits, and resistance to TSWV and/or ToMV segregated the tested plants into a variety of combinations of valuable traits for future tomato breeding programs.

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Published

25.02.2026

Issue

Vol. 32 No. 1 (2026): Bulgarian Journal of Agricultural Science

Section

Plant Genetics

License

Copyright (c) 2026 Bulgarian Journal of Agricultural Science

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This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

How to Cite

Pasev, G., Radeva-Ivanova, V., Pashkoulova, V., Grozeva , S., & Ganeva, D. (2026). Characterisation of F3 tomato breeding generations for resistance to Tomato spotted wilt virus and Tomato mosaic virus. Bulgarian Journal of Agricultural Science, 32(1), 137-141. https://doi.org/10.61308/tndj2w05