Genetica

, 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
Article

Abstract

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.

Keywords

Morphological Change Somatic Mutant Easy Method Normal Shoot 

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Copyright information

© Martinus Nijhoff 1963

Authors and Affiliations

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

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