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Die Interfertilitätsbeziehungen europäischer Sippen derArabis hirsuta-Gruppe (Brassicaceae)

Interfertility relationships between european taxa of theArabis hirsuta group (Brassicaceae)

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Abstract

Intraspecific hybrids are always fertile. In interspecific crosses total or nearly total seed sterility regularly occurs in F1 or F2 individuals or even in the involved pods of P generations: Sterility barriers range from F1 failure to moderate reduction of average hybrid fertility, and are reflected by the taxonomy of the group. Diploid F1 hybrids are able to produce triploid descendants, triploid F1 plants however pentaploid to hexaploid ones. Intermediary and dominant inheritance of indument characters and new character combinations in F2 generations are observed.

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Authors and Affiliations

  1. Institut für Botanik, Universität Wien, Rennweg 14, A-1030, Wien, Österreich

    Walter Titz

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  1. Walter Titz
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Meinem verehrten Lehrer und Förderer, Herrn Univ.-Prof. Dr.Lothar Geitler in Dankbarkeit zur Vollendung des 80. Lebensjahres gewidmet.

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Titz, W. Die Interfertilitätsbeziehungen europäischer Sippen derArabis hirsuta-Gruppe (Brassicaceae). Pl Syst Evol 131, 291–310 (1979). https://doi.org/10.1007/BF00984260

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  • DOI: https://doi.org/10.1007/BF00984260

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