Intergeneric crossings in Ranunculaceae : chromosome doubling of Ranunculus asiaticus

Emmy Dhooghe, Marie-Christine Van Labeke, Dirk Reheul

    Research output: Chapter in Book/Report/Conference proceedingC1: Articles in proceedings

    Abstract

    In floriculture the creation of new cultivars is of major importance. The family of the Ranunculaceae contains some very interesting ornamental plants. Ranunculus asiaticus L and Anemone coronaria L are very common cut flowers. Helleborus orientalis Lam on the other hand has an increasing interest as a perennial garden plant. There is a large amount of variation in leaves, height, flower shape and flower colour within these species. Intergeneric crossings between these genera might therefore result in the creation of new interesting hybrids. Crossing different species and genera might therefore result in the creation of new interesting hybrids. Crossing different species and genera, as e.g. the cross between Ranunculus asiaticus or Anemone coronaria and Helleborus orientalis, is facilitated if chromosome numbers are equal. Helleborus orientalis has a chromosome number of 32 (Zonneveld, 2001) while Ranunculus asiaticus (Goepfert, 1974) and Anemone coronaria (Rothfels et al, 1966) have a chromosome number of 16. Barriers to hybridization may be overcome by manipulating the ploidy levels prior to hybridization. The aim of this study is to double the ploidy level of Ranunculus and Anemone in order to get a better crossing compatibility. In this report we describe the chromosome doubling of Ranunculus asiaticus.
    Original languageEnglish
    Title of host publication11th Symposium on Applied Biological Sciences
    Number of pages2
    Publication date2005
    Pages119-120
    Publication statusPublished - 2005

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