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Crossing and selfing experiments in theOrnithogalum umbellatum/augustifolium complex

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Abstract

The fertility relationships ofOrnithogalum umbellatum, O. angustifolium and 9 related taxa were studied.O. umbellatum andO. angustifolium, which are not interfertile, are both recognized as a comparium. Pollination of five species belonging to theO. umbellatum/angustifolium polyploid complex, i.e.O. umbellatum, O. angustifolium, O. baeticum, O. monticolum andO. algeriense, resulted in a moderate seed set. However, the seeds obtained after these interspecific crosses did not germinate. Six related species, i.e.O. exscapum, O. nivale, O. comosum, O. collinum, O. gussonei andO. woronowii showed a very low seed set after being crossed. One exception occurs:O. nivale ×O. exscapum. The seed set was also low after the complex species had been crossed with some related species, but there was one exception: both reciprocal crosses betweenO. monticolum andO. woronowii yielded some viable seeds. No other interspecific crosses gave rise to viable seeds. Bulbil-producing species have a lower seed set after self-pollination than species which do not produce bulbils.

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Authors and Affiliations

  1. Institute for Horticultural Plant Breeding, P.O. Box 16, 6700 AA, Wageningen, The Netherlands

    L. W. D. van Raamsdonk

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  1. L. W. D. van Raamsdonk
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Biosystematic Studies on theOrnithogalum umbellatum/angustifolium Complex IV.—Previous contributions: (I–III):Raamsdonk (1982, 1985a, 1985b).

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van Raamsdonk, L.W.D. Crossing and selfing experiments in theOrnithogalum umbellatum/augustifolium complex. Pl Syst Evol 150, 179–190 (1985). https://doi.org/10.1007/BF00984194

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  • DOI: https://doi.org/10.1007/BF00984194

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