Molecular Phylogeny and Evolution of the Tuerkayana (Decapoda: Brachyura: Gecarcinidae) Genus Based on Whole Mitochondrial Genome Sequences

Tuerkayana is of particular interest because it has been separated, in recent years, from Cardisoma and Discoplax but studies its taxonomic status, especially a whole mitochondrial genome perspective, have lacking. In this study, the mitogenomes four species (Tuerkayana magnum, rotundum, hirtipes, celeste) are sequenced contrasted with other Brachyura for first time. The phylogenetic tree Brachyura, which includes 206 crab (189 Brachyuran 17 Anomura species) complete mitogenome, was constructed to evaluate position Gecarcinidae within Brachyuran, explore monophyly Gecarcinidae. Furthermore, two single gene trees based on cox1 16SrRNA separately interspecies were reconstructed, providing molecular evidence further clarifying division genera Based mitogenome dataset crabs, branch-site model utilized selective pressure individual codons CodeML. strong shown nad6 indicates that may played significant role evolution