The style morph ratio changed gradually, whereas perianth trait variation showed abrupt changes with two morphotypes across the range. The positive relationship between the visitation rate of short-tongued pollinators and the decrease of the short-style morph supports our initial hypothesis. The results highlight the importance of different pollinators in determining the presence of style polymorphism.
These markers will enable genetic diversity studies of N. papyraceus across its distribution range and conduct paternity analyses among individuals differing in flower morphology.
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