Evolutionary analysis of a key floral trait in aquilegia canadensis (ranunculaceae): genetic variation in herkogamy and its effect on the mating system.

Abstract excerpt

The mating system of flowering plant populations evolves through selection on genetically based phenotypic variation in floral traits. The physical separation of anthers and stigmas within flowers (herkogamy) is expected to be an important target of selection to limit self-fertilization. We investigated the pattern of phenotypic and genetic variation in herkogamy and its effect of self-fertilization in a broad...

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