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English: Example of a kind of incomplete lineage sorting, namely hemiplasy. The diagram shows three species, A, B and C, and one gene, G, with two versions (alleles), G0 and G1. The ancestor of A, B and C originally had only one version of gene G, G0. At some point, a mutation occurred and the ancestral population became polymorphic, with some organisms having G0 and others G1. When species A split off, it retained only G1, while the ancestor of B and C remained polymorphic. When B and C diverged, B retained only G1 and C only G0; neither were now polymorphic in G. The tree for gene G shows A and B as sisters, whereas the species tree shows B and C as sisters.
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Source Own work
Author Peter coxhead

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19 March 2021

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current07:50, 19 March 2021Thumbnail for version as of 07:50, 19 March 2021386 × 317 (9 KB)Peter coxheadUploaded own work with UploadWizard

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