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

Authors
Journal
Plant Systematics and Evolution
0378-2697
Publisher
Springer-Verlag
Publication Date
Disciplines
  • Biology
  • Design

Abstract

Genetic analysis of unusual complex-heterozygous genotypes in populations of O. grandiflora from Alabama (USA) has shown that these strains are composed of a typical grandiflora (B) complex and an altered B complex (designated as B A ) which probably contains genetic elements derived from an A genotype such as the beta complex of O. 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.

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