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Behaviour of rye univalents in hybrids of 6x-triticale with Triticum turgidum (L.) ssp. turgidum conv. durum (Desf.)

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Abstract

In a cytological analysis of the meiotic behaviour in PMCs of five hybrids between hexaploid triticale and durum wheat, Triticum turgidum L., chromosome association at meiotic first metaphase and the behaviour of rye univalents at first anaphase were analyzed. The chromosomes of the B genome, chromosomes 4A and 7A (disomic condition), and the seven rye chromosomes, could be distinguished by their C-banding pattern. No wheat-rye paring was detected at metaphase I. Rye univalents were observed as laggards which disjoined either predominantly equationaly (2R, 3R, 4R, 5R and 7R) or predominantly reductionaly (1R and 6R). Misdivision occurred in up to 3% of rye univalents.

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Authors and Affiliations

  1. Departamento de Biología Celular y Genética, Universidad de Alcalá de Henares, Madrid, Spain

    A. Bernardo & N. Jouve

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  1. A. Bernardo
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  2. N. Jouve
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Bernardo, A., Jouve, N. Behaviour of rye univalents in hybrids of 6x-triticale with Triticum turgidum (L.) ssp. turgidum conv. durum (Desf.). Genetica 77, 85–88 (1988). https://doi.org/10.1007/BF00057757

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  • DOI: https://doi.org/10.1007/BF00057757

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