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Transfer of stem rust seedling resistance from wild diploid einkorn to tetraploid durum wheat by means of a triploid hybrid bridge

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Summary

Transfer of stem rust resistance from diploid wild einkorn, Triticum boeoticum, to susceptible Mindum and Spelmar, varieties of cultivated T. durum, was achieved by means of a triploid hybrid bridge and subsequent backcrossing to the tetraploid parent. Seedlings of the second hybrid generation segregated for resistance to race 14 of Puccinia graminis f.sp. tritici which was used as test race in this investigation. The F3 and F4 progenies included segregants which displayed seedling resistance also to races 17, 19, 21, 40, 53, 194, 222, 315 and 322. Since these were the same races which proved avirulent to the T. boeoticum donor but virulent to the T. durum recipients, it was concluded that the full pattern of resistance determined in the wild diploid parent of this cross was transferred to the tetraploid durum-like hybrid derivatives.

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References

  • Gerechter-Amitai, Z., 1967. Wild grasses as sources of resistance to the wheat rusts. The First Israel Congress of Plant Pathology, Rehovot. p. 43. Israel Ministry of Agriculture. (English summary of lectures).

  • Riley, R., 1956. Cytogenetics and evolution of wheat. In ‘Essays on Crop Plant Evolution’ (edited by J. B. Hutchinson), pp. 103–125., Cambridge.

  • Stakman, E. C., Stewart, D. M. & Loegering, W. Q., 1962. Identification of physiologic races of Puccinia graminis tritici. U.S. Dep. Agric., Sct. E, 617 (Revised).

  • Vardi A. & Zohary D., 1967. Introgression in wheat via triploid hybrids. Heredity 22, pp. 541–560.

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Authors and Affiliations

  1. Volcani Institute of Agricultural Research, Bet Dagan

    Z. K. Gerechter-Amitai

  2. Israel Department of Botany, Tel Aviv University, Israel

    I. Wahl

  3. Institute of Biology, Hebrew University of Jerusalem, Israel

    D. Zohary

Authors
  1. Z. K. Gerechter-Amitai
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  2. I. Wahl
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  3. Aliza Vardi
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  4. D. Zohary
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Additional information

Joint contribution from The Volcani Institute of Agricultural Research, Bet Dagan, 1970 Series, No. 1801-E, the Tel Aviv University, and the Hebrew University of Jerusalem, Israel.

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Gerechter-Amitai, Z.K., Wahl, I., Vardi, A. et al. Transfer of stem rust seedling resistance from wild diploid einkorn to tetraploid durum wheat by means of a triploid hybrid bridge. Euphytica 20, 281–285 (1971). https://doi.org/10.1007/BF00056088

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  • DOI: https://doi.org/10.1007/BF00056088

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