Theoretical and Applied Genetics

, Volume 86, Issue 5, pp 567–572 | Cite as

Brassica carinata resynthesized by protoplast fusion

  • P. Jourdan
  • E. Salazar


Brassica carinata (bbcc) was resynthesized by protoplast fusion betweenB. nigra (bb) andB. oleracea (cc). In two fusion experiments 64 hybrid plants were obtained and identified to be true hybrids by isoenzyme analysis, nuclear DNA content, chromosome number, and intermediate morphology. Of these plants 56% were normal amphidiploids with 2n=34 chromosomes and a DNA content equivalent to that of naturalB. carinata. The remaining plants were polyploid, morphologically abnormal, and infertile. The majority of the hybrids contained both chloroplasts and mitochondria fromB. nigra, but some plants combined chloroplast and mitochondria from the different progenitors. Hybrids with a DNA content equivalent to that ofB. carinata had a wide range of male fertility (4–98%), but consistently low female fertility. Only a few selfed seed were produced, but these germinated and grew into vigorous plants.

Key words

Amphidiplids Brassica carinata Interspecific hybridization Protoplast fusion 


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Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • P. Jourdan
    • 1
  • E. Salazar
    • 1
  1. 1.Department of HorticultureThe Ohio State UniversityColumbusUSA

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