Zeitschrift für Vererbungslehre

, Volume 92, Issue 3, pp 252–260 | Cite as

Selbstfertile Diploide aus Polyploiden selbststeriler Petunien; Die Duplikation desS-Locus

  • Käthe Breuer


Crosses between self-incompatible triploidPetunia hybrida-plants and selfincompatible diploid ones produce self-compatible trisomics.

Self-pollinations of the self-compatible trisomics give a great number of self-compatible diploid individuals which are constant self-compatible in further generations.

It is supposed that self-compatibility is caused by a duplication of theS-locus. According to the results the duplication as well of identical as of not identicalS-Alleles must cause the break-down of the inhibition-reaction.

Further it is supposed that the influence of the alleles in a duplicated locus both in pollen tubes and in styles is not sufficient to eliminate the inhibition-effect of normalS-genes which are presented in the reaction partner.


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Copyright information

© Springer-Verlag 1961

Authors and Affiliations

  • Käthe Breuer
    • 1
  1. 1.Botanischen Institut der Universität KölnKöln-Lindenthal

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