Molecular dissection of Tomato leaf curl virus resistance in tomato line TY172 derived from Solanum peruvianum

Ilana Anbinder, Moshe Reuveni, Raviv Azari, Ilan Paran, Sahadia Nahon, Haviva Shlomo, Lea Chen, Moshe Lapidot, Ilan Levin

Research output: Contribution to journalArticlepeer-review


Tomato yellow leaf curl virus (TYLCV) is devastating to tomato (Solanum lycopersicum) crops and resistant cultivars are highly effective in controlling the disease. The breeding line TY172, originating from Solanum peruvianum, is highly resistant to TYLCV. To map quantitative trait loci (QTLs) controlling TYLCV resistance in TY172, appropriate segregating populations were analyzed using 69 polymorphic DNA markers spanning the entire tomato genome. Results show that TYLCV resistance in TY172 is controlled by a previously unknown major QTL, originating from the resistant line, and four additional minor QTLs. The major QTL, we term Ty-5, maps to chromosome 4 and accounts for 39.7-46.6% of the variation in symptom severity among segregating plants (LOD score 33-35). The minor QTLs, originated either from the resistant or susceptible parents, were mapped to chromosomes 1, 7, 9 and 11, and contributed 12% to the variation in symptom severity in addition to Ty-5.

Original languageEnglish
Pages (from-to)519-530
Number of pages12
JournalTheoretical And Applied Genetics
Issue number3
StatePublished - Aug 2009
Externally publishedYes

Bibliographical note

Funding Information:
The authors wish to thank Dr. Shlomo Cohen for his encouragement, fruitful suggestions and assistance. This project was funded by a Queensland (Australia)—Israel Binational Agricultural Research and Development Fund (No. QB-9302-03) to IL and ML. The data presented are part of M.Sc. thesis of Ilana Anbinder supervised jointly by IL and ML. Contribution no. 101/2009 from the Agricultural Research Organization, Volcani Center, Bet Dagan, Israel.

ASJC Scopus subject areas

  • Biotechnology
  • Agronomy and Crop Science
  • Genetics


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