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A self-fertile trigeneric hybrid in the Triticeae involving Triticum, Hordeum, and Secale

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Summary

A self-fertile trigeneric hybrid in the Triticeae involving species from the Hordeum, Triticum and Secale genera has been produced. The trigeneric hybrid was obtained by crossing octoploid triticale (x Triticosecale Wittmack) with octoploid tritordeum (H. chilense × T. aestivum amphiploid). The trigeneric hybrid presented a genome constitution AABBDDRHch and 2n=8X=56 chromosomes. The cytogenetical analyses showed no chromosome instability nor homeologous pairing between Hordeum and Secale chromosomes. In the F2 generation the chromosome number ranged from 42 to 52. Within this range, the plants with smaller numbers of chromosomes were more frequent. A preferential transmission of rye chromosomes could be inferred.

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Authors and Affiliations

  1. Departamento de Genética, Universidad de Córdoba, Apdo. 3048, 14080, Córdoba, Spain

    J. Fernández-Escobar

  2. Consejo Superior de Investigaciones Científicas, Apdo. 3048, 14080, Córdoba, Spain

    A. Martin

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  1. J. Fernández-Escobar
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  2. A. Martin
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Fernández-Escobar, J., Martin, A. A self-fertile trigeneric hybrid in the Triticeae involving Triticum, Hordeum, and Secale . Euphytica 42, 291–296 (1989). https://doi.org/10.1007/BF00034467

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  • DOI: https://doi.org/10.1007/BF00034467

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