Plant Systematics and Evolution

, Volume 184, Issue 1, pp 77–87

Cytological analysis of complex-heterozygotes in populations ofOenothera grandiflora (Onagraceae) in Alabama

  • Elfriede Schumacher
  • Erich Steiner

DOI: 10.1007/BF00937779

Cite this article as:
Schumacher, E. & Steiner, E. Pl Syst Evol (1993) 184: 77. doi:10.1007/BF00937779


Genetic analysis of unusual complex-heterozygous genotypes in populations ofO. grandiflora from Alabama (USA) has shown that these strains are composed of a typicalgrandiflora (B) complex and an altered B complex (designated as BA) which probably contains genetic elements derived from an A genotype such as the beta complex ofO. biennis group 1. Analysis of the meiotic configurations of artificial hybrids between the new strains and a series of complexes of known segmental arrangement allowed determination of the arrangements of the unknown complexes. These data are evidence for origin of the altered B complexes.

Key words

Onagraceae Oenothera grandiflora O. biennis O. villosa Chromosome arrangements complex-heterozygotes incompatibility alleles populations Flora of Alabama 

Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • Elfriede Schumacher
    • 1
  • Erich Steiner
    • 2
  1. 1.Botanisches InstitutHeinrich-Heine-UniversitätDüsseldorfGermany
  2. 2.Department of BiologyUniversity of MichiganAnn ArborUSA

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