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Article

Testing macroevolutionary predictions of the Grant-Stebbins model in the origin of Aeschynanthus acuminatus.

The New phytologist - 1 Mar 2026

Lu Jing-Yi, Xing Yao-Wu, Luu Hong Truong, Ree Richard H

Abstract excerpt

The Grant-Stebbins model predicts that a plant species encountering different pollinators across its range may undergo local adaptation and, subsequently, ecological speciation. We tested whether this could explain the origin of Aeschynanthus acuminatus (Gesneriaceae), a species phylogenetically derived from sunbird specialist ancestors. A. acuminatus is widespread throughout mainland E Asia but also occurs in...

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PMID: 41591281
DOI: 10.1111/nph.70871
PMCID: PMC12917478

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