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Zamir D, Ekstein-Michelson I, Zakay Y, et al. Mapping and introgression of a tomato yellow leaf curl virus tolerance gene, TY-1. Theor Appl Genet. 1994;88(2):141-6doi: 10.1007/BF00225889.
Zamir, D., Ekstein-Michelson, I., Zakay, Y., Navot, N., Zeidan, M., Sarfatti, M., Eshed, Y., Harel, E., Pleban, T., van-Oss, H., Kedar, N., Rabinowitch, H. D., & Czosnek, H. (1994). Mapping and introgression of a tomato yellow leaf curl virus tolerance gene, TY-1. TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, 88(2), 141-6. https://doi.org/10.1007/BF00225889
Zamir, D, et al. "Mapping and introgression of a tomato yellow leaf curl virus tolerance gene, TY-1." TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik vol. 88,2 (1994): 141-6. doi: https://doi.org/10.1007/BF00225889
Zamir D, Ekstein-Michelson I, Zakay Y, Navot N, Zeidan M, Sarfatti M, Eshed Y, Harel E, Pleban T, van-Oss H, Kedar N, Rabinowitch HD, Czosnek H. Mapping and introgression of a tomato yellow leaf curl virus tolerance gene, TY-1. Theor Appl Genet. 1994 May;88(2):141-6. doi: 10.1007/BF00225889. PMID: 24185918.
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Theor Appl Genet. 1994 May;88(2):141-6. doi: 10.1007/BF00225889.

Mapping and introgression of a tomato yellow leaf curl virus tolerance gene, TY-1.

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik

D Zamir, I Ekstein-Michelson, Y Zakay, N Navot, M Zeidan, M Sarfatti, Y Eshed, E Harel, T Pleban, H van-Oss, N Kedar, H D Rabinowitch, H Czosnek

Affiliations

  1. Department of Field and Vegetable Crops, The Faculty of Agriculture, The Hebrew University of Jerusalem, P.O. Box 12, 76100, Rehovot, Israel.

PMID: 24185918 DOI: 10.1007/BF00225889

Abstract

The whitefly-transmitted tomato yellow-leaf curl gemini-virus (TYLCV) is a major pathogen of tomatoes. The wild tomato species Lycopersicon chilense, which is resistant to the virus, was crossed to the cultivated tomato, L. esculentum. The backcross-1 selfed (BC1S1) generation was inoculated and a symptomless plant was selected. This plant was analyzed using 61 molecular markers, which span the tomato genome, to determine which L. chilense chromosome segments were introgressed. A BC2S1 population was cage-inoculated with viroliferous whiteflies (Bemisia tabaci), the natural insect vector of the virus, and subjected to RFLP analysis. Markers on chromosomes 3 and 6 were significantly associated with the level of tolerance; the association of chromosome-6 markers was further substantiated in two additional BC2S1 populations. A tolerant BC2S1 plant which was homozygous for L. chilense introgressions in chromosomes 3, 6 and 7 was crossed to generate a BC3S1 population which was planted in an infested field. A TYLCV-tolerance gene with partial dominance, TY-1, was mapped to chromosome 6; two modifier genes were mapped to chromosomes 3 and 7. Field and whitefly-mediated cage inoculations of nearly-isogenic lines in BC3S3 supported our conclusion that TY-1 is the major TYLCV-tolerance locus.

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