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A new gene, Ny tbr , for hypersensitivity to Potato virus Y from Solanum tuberosum Maps to Chromosome IV

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Abstract 

A diploid backcross population derived from a cross between Solanum tuberosum and Solanum berthaultii segregated for monogenic dominant hypersensitivity to Potato virus Y (PVY). We propose the symbol Ny tbr for this locus because plants carrying this gene develop necrosis after inoculation with PVY and the allele originated in S. tuberosum. The gene mapped to chromosome IV between TG316 and TG208 at LOD=2.72. This location does not correspond to any other mapped resistance genes in potato.

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Authors and Affiliations

  1. Department of Plant Pathology, Cornell University, Ithaca, NY14853, USA, Present address: S.A. Slack, Ohio Agricultural Research and Development Center, Ohio State University, Wooster, Columbus, OH 44691, USA, , , , , , US

    F. Celebi-Toprak & S. A. Slack

  2. Department of Plant Breeding, Cornell University, Ithaca, NY14853, USA e-mail: mmk9@cornell.edu Tel.: 607-255-8147, Fax: 607-255-6683, , , , , , US

    M. M. Jahn

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  1. F. Celebi-Toprak
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  2. S. A. Slack
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  3. M. M. Jahn
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Received: 13 April 2001 / Accepted: 20 July 2001

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Celebi-Toprak, F., Slack, S. & Jahn, M. A new gene, Ny tbr , for hypersensitivity to Potato virus Y from Solanum tuberosum Maps to Chromosome IV. Theor Appl Genet 104, 669–674 (2002). https://doi.org/10.1007/s001220100749

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  • DOI: https://doi.org/10.1007/s001220100749

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