Molecular and General Genetics MGG

, Volume 157, Issue 3, pp 291–296 | Cite as

Restoration of morphogenic potential in Nicotiana by somatic hybridisation

  • Pál Maliga
  • Gabriella Lázár
  • Ferenc Joó
  • Anna H. -Nagy
  • László Menczel
Article

Summary

KR103 is a kanamycin resistant cell line of Nicotiana sylvestris, deficient in inducible shoot redifferentiation. The existence of a genetically unaltered inducibility factor in KR103 was tested by fusing protoplasts of this line with those of Nicotiana knightiana, which can not be induced to form shoots in callus culture.

Selection of somatic hybrids was based on screening for kanamycin resistance and green pigmentation, factors originally separated in the parental lines. The hybrid nature of two lines (H1 and H2) was shown by studies on esterase, alcohol dehydrogenase and glucose-6-phosphate dehydrogenase isoenzymes.

In the somatic hybrids shoot formation on inductive medium was restored, indicating that the inducibility factor had not been altered in KR103. Genetic complementation and induced regulatory changes due to genome interaction are discussed as possible explanations for the restoration of morphogenic potential.

Keywords

Kanamycin Parental Line Alcohol Dehydrogenase Resistant Cell Inductive Medium 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1977

Authors and Affiliations

  • Pál Maliga
    • 1
  • Gabriella Lázár
    • 1
  • Ferenc Joó
    • 2
  • Anna H. -Nagy
    • 3
  • László Menczel
    • 1
  1. 1.Institute of Plant PhysiologyBiological Research CenterSzegedHungary
  2. 2.Institute of BiophysicsBiological Research CenterSzegedHungary
  3. 3.Department of GeneticsEötvös Láránd UniversityBudapestHungary

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