homostyly


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homostyly

the possession of styles of only one length in flowers of a particular species. This is a more common condition than HETEROSTYLY.
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1] plants were self-compatible with homostylic flowers, indicating that self-compatible homostyly is dominant to self-incompatible heterostylic pin.
homotropicum is pure-breeding for homostyly and heterozygosity at either loci would result in the production of homozygous recessive genotypes and the expression of a pin phenotype.
To address this uncertainty, we conducted separate historical reconstructions of mating system evolution, assuming distyly or homostyly as ancestral in Amsinckia.
When homostyly is assumed to be primitive, and the mating system is treated as a weighted character, the most parsimonious reconstruction of mating system evolution involves one gain at the base of the tree and four losses of distyly at the tips [ILLUSTRATION FOR FIGURE 4B OMITTED].
3) Is homostyly among selfing taxa of Eichhornia homologous or were there multiple transitions from tristylous, outcrossing taxa to homostylous, selfing ones?
However a phylogenetic study of Pontederiaceae involving 34 taxa and 42 morphological characters, 27 of which were reproductive traits, suggested instead that the shift from tristyly to homostyly occurred once, resulting in a monophyletic group of selfing species (Eckenwalder and Barrett 1986).