Article
Decrease of sexual organ reciprocity between heterostylous primrose species, with possible functional and evolutionary implications.
Annals of botany - 1 Nov 2012
Keller Barbara, de Vos Jurriaan M, Conti Elena
Abstract excerpt
BACKGROUND AND AIMS: Heterostyly is a floral polymorphism that has fascinated evolutionary biologists since Darwin's seminal studies on primroses. The main morphological characteristic of heterostyly is the reciprocal placement of anthers and stigmas in two distinct (distyly) floral morphs. Variation in the degree of intermorph sexual reciprocity is relatively common and known to affect patterns of pollen...
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