Additional file 9.

Neighbor-Joining phylogenetic tree of Hsp68 genes of 12 sequenced Drosophila species. Neighbor-Joining phylogenetic tree of Hsp68 genes of 12 sequenced Drosophila species. D. persimilis, D. pseudoobscura, D. grimshawi, D. virilis and D. mojavensis have two copies of the Hsp68 gene, while D. sechellia, D. simulans, D. melanogaster, D. erecta, D. yakuba and D. ananassae only one. No Hsp68 gene has been detected in D. willistoni. Bootstrap values for all tree nodes are shown. Phylogenetic analysis was carried out using MEGA4 [114]. Evolutionary distances were computed using the Maximum Composite Likelihood method.

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GuillĂ©n and Ruiz BMC Genomics 2012 13:53   doi:10.1186/1471-2164-13-53