Xenbase Image ID: 116756

Figure 2. Putative Allopolyploid Evolution of the Tetraploid X. laevisDaggers indicate extinct diploid ancestors or genes. Nodes 1 and 2 correspond with the divergence and union, respectively, of two diploid genomes, and Node 3 marks the diversification of Xenopus tetraploids.(A) A reticulate phylogeny with ploidy in parentheses.(B) Nuclear genealogy assuming no recombination and no gene conversion between alleles at different paralogous loci (α and β). The dashed portion of the paralogous lineages evolved independently in different diploid ancestors. Image published in: Chain FJ and Evans BJ (2006) Copyright: © 2006 Chain and Evans. This image is reproduced with permission of the journal and the copyright holder. This is an open-access article distributed under the terms of the Creative Commons Attribution license Larger Image Printer Friendly View

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