Vertebrate whole genome duplication

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There is evidence that the vertebrate lineage has undergone two sequential whole genome duplication events. There are known as 1R and 2R.

Syntenic evidence for the most recent of these events is seen in the comparison of bird genomes. See the syntenic dotplot of Chicken-Turkey for an example.

Self-self syntenic dotplot of turkey genome. Syntenic regions are from the most recent vertebrate whole genome duplication event. Results may be regenerated: