deficiens series

Wild-type (top),
deficienschlorantha (right),
deficiensnicotianoides (left),
deficiensglobifera (bottom).
Picture provided by W.E. Lönnig.
Series of multiple alleles. Petals reduced. Male fertility reduced. Petals greenish. In her 1926 paper Mrs. P Hertwig showed that the mutants chlorantha, nicotianoides and globifera behaved like alleles (multiple allelmorphs). She also crossed the different alleles and described the phenetope of chlorantha/nicotianoides, chlorantha/globifera and nicotianoides/globifera heterozygotes which are intermediates between the phenotypes of the individual mutants. All alleles are rezessive in combination with the wild type. No heterozygotes can be seen there. chlorantha/nicotianoides is much like chlorantha/chlorantha but can always be told from it. chlorantha/globifera flowers are more downwardly bend than the parent flowers. The flowers remain closed. nicotiana/globifera stamen are much transformed to the globifera-type.

Description of the Alleles:

  • Stubbe's original notes (as stored in the IPK, Gatersleben) (in German!):
  • Literature:
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    This page has last been modified on May 13, 1997.