Island geography drives evolution of rattan palms in tropical Asian rainforests

IF 44.7 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES Science Pub Date : 2025-03-13 DOI:10.1126/science.adp3437

Benedikt G. Kuhnhäuser, Christopher D. Bates, John Dransfield, Connie Geri, Andrew Henderson, Sang Julia, Jun Ying Lim, Robert J. Morley, Himmah Rustiami, Rowan J. Schley, Sidonie Bellot, Guillaume Chomicki, Wolf L. Eiserhardt, Simon J. Hiscock, William J. Baker

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Abstract

Distributed across two continents and thousands of islands, the Asian tropics are among the most species-rich areas on Earth. The origins of this diversity, however, remain poorly understood. Here, we reveal and classify contributions of individual tropical Asian regions to their overall diversity by leveraging species-level phylogenomic data and new fossils from the most species-rich Asian palm lineage, the rattans and relatives (Arecaceae, Calamoideae). Radiators (Borneo) generate and distribute diversity, incubators (Indochina, New Guinea, and Sulawesi) produce diversity in isolation, corridors (Java, Maluku, Sumatra, and the Thai-Malay Peninsula) connect neighboring regions, and accumulators (Australia, India, Palawan, and the Philippines) acquire diversity generated elsewhere. These contrasting contributions can be explained by differences in region size and isolation, elucidating how the unique island-dominated geography of the Asian tropics drives their outstanding biodiversity.

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Science 综合性期刊-综合性期刊

CiteScore

61.10

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0.90%

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审稿时长

2.1 months

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