Symmetric Versus Asymmetric Fusion Combinations in Higher Plants

  • I. Negrutiu
  • A. Mouras
  • Y. Y. Gleba
  • V. Sidorov
  • S. Hinnisdaels
  • Y. Famelaer
  • M. Jacobs
Part of the Biotechnology in Agriculture and Forestry book series (AGRICULTURE, volume 8)


The terms symmetric and asymmetric hybrids refer to the nuclear constitution of fusion products. Symmetric hybrids are defined as consisting of complete sets of chromosomes from both the parents, while asymmetric ones result from a preferential or unidirectional loss of chromosomes belonging to one of the fusion partners. Since protoplasts can be isolated from almost any plant species and readily induced to fuse in all possible combinations, it was expected and even accepted that fusion technology was going to make important contributions in both basic and applied research. This matter was critically evaluted by Harms (1983 a), Burgess (1984) and reviewed in detail by Gleba and Sytnik (1984) and Horn et al. (1986).


Somatic Hybrid Protoplast Fusion Fusion Product Fusion Partner Plant Protoplast 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1989

Authors and Affiliations

  • I. Negrutiu
    • 1
  • A. Mouras
    • 2
  • Y. Y. Gleba
    • 3
  • V. Sidorov
    • 3
  • S. Hinnisdaels
    • 1
  • Y. Famelaer
    • 1
  • M. Jacobs
    • 1
  1. 1.Laboratorium voor PlantengeneticaVrije Universiteit Brussel, Instituut voor Moleculaire BiologieSint-Genesius-RodeBelgium
  2. 2.Laboratoire de Biologie CellulaireUniversité Bordeaux IITalenceFrance
  3. 3.Academy of SciencesInstitute of BotanyRepina 2USSR

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