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Article

Divergence in proteins, mitochondrial DNA, and reproductive compatibility across the isthmus of Panama.

Science (New York, N.Y.) - 11 Jun 1993

Knowlton N, Weigt L A, Solórzano L A, Mills D K, Bermingham E

Abstract excerpt

It is widely believed that gene flow connected many shallow water populations of the Caribbean and eastern Pacific until the Panama seaway closed 3.0 to 3.5 million years ago. Measurements of biochemical and reproductive divergence for seven closely related, transisthmian pairs of snapping shrimps (Alpheus) indicate, however, that isolation was staggered rather than simultaneous. The four least divergent pairs...

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PMID: 8503007
DOI: 10.1126/science.8503007

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