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Callose pattern and polarization phenomena in the ovules in the F2-hybrids betweenOenothera hookeri andOe. suaveolens

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Abstract

The pattern of callose formation in meiotic cell walls and the order of megaspore degeneration and polarity during embryo sac development are investigated in F2-plants ofOe. hookeri ×suaveolens and the reciprocal cross. All investigated characters are variable between the ovules in the same ovary. Plants differ in the frequency of the types of callose pattern and polarity of the embryo sacs. In segregating progenies different combinations of both characters are found. The genetic basis of the polarity phenomena during the embryo sac development is discussed. In our material no correlation can be seen between the callose pattern in the surrounding wall of the meiotic cell and the development of polarity in the later stages.

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Authors and Affiliations

  1. Zakl. Anatomii i Cyt. Roślin, Instytut Biologii UMCS, ul. Akademicka 19, 20-033, Lublin, Poland

    Renata Śnieżko

  2. Institut für Entwicklungsphysiologie der Universität, Gyrhofstrasse 17, D-5000, Köln 41, Federal Republic of Germany

    Cornelia Harte

Authors
  1. Renata Śnieżko
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  2. Cornelia Harte
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Śnieżko, R., Harte, C. Callose pattern and polarization phenomena in the ovules in the F2-hybrids betweenOenothera hookeri andOe. suaveolens . Pl Syst Evol 147, 79–90 (1984). https://doi.org/10.1007/BF00984581

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  • DOI: https://doi.org/10.1007/BF00984581

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