, Volume 33, Issue 1, pp 88–94 | Cite as

The chimærical structure of a somatic solanum mutant revealed by ionizing irradiation

  • Aage Heiken
  • Göran Ewertson


The aim of the present study was to investigate whether it is possible to reveal the chimaerical structure of somatic mutants inSolanum tuberosum by means of ionizing irradiation. A somatic subdivided-leaf mutant of the variety Prosident was chosen as subject. This mutant was isolated in 1957 and has proved to keep permanent and stable during a five years' propagation. In spite of a two years' eye-excision experiment in which, totally, 50 tuber-halves were tested, it has been impossible to demonstrate the chimærical structure of this type. Im May 1961, 50 tuber-halves of the subdivided-leaf type were X-irradiated with a dose of 4,000 r. Five of the surviving 40 plants showed from one to three normal shoots. Furthermore, in one of these plants, a few leaves were observed one half of which was subdivided and the other normal. In the corresponding 50 tuber-halves, which served as a control, no morphological changes could be found. It is concluded that X-irradiation is an efficient and easy method for revealing the chimærical structure of somatic mutants inSolanum tuberosum.


Morphological Change Somatic Mutant Easy Method Normal Shoot 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Asseyeva, T. (1927). Bud mutations in the potato and their chimerical nature.J. Genet. 19: 1–26.Google Scholar
  2. Asseyeva, T. (1931). Bud mutations in the potato.Bull. Appl. Bot. Genet. and Plant Breed (Leningrad) 27: 135–218.Google Scholar
  3. Baur, R. (1957). The induction of vegetative mutations inRibes nigrum.Hereditas 43: 323–337.Google Scholar
  4. Bergann, F. (1955). Einige Konsequenzen der Chimärenforschung für die Pflanzenzüchtung.Zeitschr. f. Pflanzenzücht. 34: 113–124.Google Scholar
  5. Bishop, C. J. (1954). Mutations in apples induced by X-radiation.J. Heredity 45: 99–104.Google Scholar
  6. Cuany, R. L., A. H. Sparrow &A. H. Jahn (1958). Spontaneous and radiation-induced somatic mutation rates inAntirrhinum, Petunia, Tradescantia, andLilium.Proc. X Int. Cong. Genet. 2: 62–63.Google Scholar
  7. Granhall, I. (1953). X-ray mutations in apples and pears.Hereditas 39: 149–155.Google Scholar
  8. Heiken, A. (1960). Spontaneous and X-ray-induced somatic aberrations inSolanum tuberosum L.Act. Acad. Reg. Sci. Upsaliensis 7: 1–125.Google Scholar
  9. Heiken, A. (1961). Induction of somatic changes inSolanum tuberosum by acute gamma irradiation.Hereditas 47: 606–614.Google Scholar
  10. Howard, H. W. (1958). Transformation of a monochlamydius into a dichlamydius chimæra by X-ray treatment.Nature (London) 182: 1620.Google Scholar
  11. Jørgensen, C. A. &M. B. Crane (1927). Formation and morphology ofSolanum chimæras.J. Genet. 18: 247–273.Google Scholar
  12. Richter, A. &W. R. Singleton (1955). The effect of chronic gamma radiation on the production of somatic mutations in carnations.Proc. Natl. Acad. Sci. U.S. 41: 295–300.Google Scholar
  13. Sagawa, Y. &G. A. L. Mehlquist (1957). The mechanism responsible for some X-ray induced changes in flower color of the carnation,Dianthus caryophyllus.Am. J. Bot. 44: 397–403.Google Scholar
  14. Stanton, W. R. (1952). Bolting, a vegetative variation in the patato.Heredity 6: 37–53.Google Scholar
  15. Stanton, W. R. &W. K. Sinclair (1951). Effect of high concentration of phosphorus-32 on growth of the potato.Nature (London) 167: 234–235.Google Scholar
  16. Whitehead, T., T. P. McIntosh & W. M. Findlay (1953).The Potato in Health and Disease. Edinburgh, 744 pp.Google Scholar

Copyright information

© Martinus Nijhoff 1963

Authors and Affiliations

  • Aage Heiken
    • 1
  • Göran Ewertson
    • 1
  1. 1.Institute of GeneticsUniversity of UppsalaSweden

Personalised recommendations