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Phylogenetic Tree of 28 Rat Strains
The phylogenetic tree was constructed using 9.6 million SNVs across 28 laboratory rat strains, including the Brown Norway reference strain (BN/Mcwi). The scale represents genetic distance; the distance matrix was calculated by dividing the number of SNVs between a given pair of strains by the length of the BN reference genome. The phylogenetic tree was constructed using the Fitch-Margoliash method with 1,000 bootstraps.
