Article

Genomic signatures of reproductive isolation are decoupled from floral divergence in a long-standing hybrid zone

2026-01-18

Abstract excerpt

A central goal in evolutionary biology is to understand how species boundaries are maintained despite gene flow. Two North American wildflower species with divergent floral syndromes, Penstemon davidsonii (bee syndrome) and P. newberryi (bird syndrome), have formed hybrid zones in the eastern Sierra Nevada for at least 85 years. We combined multiple approaches to test whether divergent floral syndromes enforce r...

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Literature Corpus work: c125a075-2a81-55a3-aea1-82bfa0980ac2
DOI: 10.64898/2026.01.17.700129

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