Screening and validation of three molecular markers for disease resistance in eggplant

Polat İ.

Czech Journal Of Genetics And Plant Breeding, vol.58, no.2, pp.83-92, 2022 (SCI-Expanded)

  • Publication Type: Article / Article
  • Volume: 58 Issue: 2
  • Publication Date: 2022
  • Doi Number: 10.17221/105/2021-cjgpb
  • Journal Name: Czech Journal Of Genetics And Plant Breeding
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, CAB Abstracts, Veterinary Science Database, Directory of Open Access Journals
  • Page Numbers: pp.83-92
  • Akdeniz University Affiliated: Yes


Fusarium oxysporum Schlecht. f.sp. melongenae (FOM), Verticillium dahliae (Ve) and Ralstonia solanacearum

are major limiting pathogens affecting eggplant cultivation and their yield in the world. Natural resistance genes are

the most environmentally friendly method to control the disease. Thus, marker-assisted selection (MAS) is preferred as

a tool for screening resistance genes (R-genes) in eggplant resistance breeding. In this study, markers that are specifically

linked to major disease resistance genes conferring resistance to F. melongenae, V. dahliae and R. solanacearum were

tested in a population containing breeding materials to validate the resistance. Resistant Solanum melongena accessions

LS1934 and LS2436 and their reciprocal crosses were used as the resistance resource for this validation study. Moreover,

classical resistance tests to FOM and Ve were performed with the root-dip inoculation method for classification

of all the accessions based on their resistance/susceptibility responses. The SCAR426, CAPs_903 and SIVR844 markers

were highly informative for the determination of resistance genes (Fomg, Ve and ERs1). Therefore, in areas with high

susceptibility to diseases, a highly efficient combination of the relevant R-genes and their pyramiding into commercial

eggplant varieties are proposed to be implemented as a pragmatic approach.