Letter | Published:

Sexuality and Apomixis in Taraxacum

Naturevolume 214page114 (1967) | Download Citation

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Abstract

UNTIL 1949, the available evidence indicated that species of Taraxacum in the Mediterranean region and in Asia were sexual, and that those in north, west and central Europe were apomictic (apart from two small sexual populations in Sweden and Switzerland). In 1949, Tschermak-Woess1 discovered sexual plants in apomictic populations in south Austria and these have been further studied by Fürnkranz2–4. He established the rule that sexual plants are diploid and apomictic plants polyploid (although Sörensen and Gudjonsson5 had shown that plants with (3n−1) chromosomes may show sexuality).

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References

  1. 1

    Tschermak-Woess, E., Osterr. Bot. Z., 96, 56 (1949).

  2. 2

    Fürnkranz, D., Osterr. Bot. Z., 107, 310 (1960).

  3. 3

    Fürnkranz, D., Osterr. Bot. Z., 108, 408 (1961).

  4. 4

    Fürnkranz, D., Ber. Deutsch. Bot. Ges., 78, 139 (1965).

  5. 5

    Sörensen, T., and Gudjonsson, G., Kong. Dansk Vid. Selsk. Biol. Skr., 4 (2) (1946).

  6. 6

    van Soest, J. L., Acta Bot. Neerl., 8, 77 (1959).

  7. 7

    Malecka, J., Acta Biolog. Cracov. (Ser. Bot.), 4, 25 (1961).

  8. 8

    Sörensen, T., Bot. Tidskr., 54 (1), 1 (1958).

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Affiliations

  1. Department of Botany, University of Durham, and University of Manchester

    • D. H. VALENTINE
    •  & A. J. RICHARDS

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https://doi.org/10.1038/214114a0

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