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Contact: Miguel Alcaide
University of British Columbia

Map of An Epic Genetic Evolution

Caption: Greenish warblers were thought to have evolved from a single ancestral population that gradually diverged into two new species as it expanded northwards around the Tibetan plateau (grey arrows). Cutting-edge genomic approaches now show that at least two ancestral populations generated the current ring distribution (black arrows). The two populations met in northern India, where they extensively interbreed (bi-directional black arrows), and in central Siberia, where interbreeding is rare. Circles indicate 'dead ends' for gene flow.

Credit: Miguel Alcaide, University of British Columbia.

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Related news release: Researchers map the epic evolution of a 'ring species'

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