Phylomitogenomics of Malacostraca (Arthropoda: Crustacea)

摘要: Along with the sequencing technology development and continual enthusiasm of researchers on mitochondrial genomes, number metazoan genomes reported has a tremendous growth in past decades. Phylomitogenomics—reconstruction phylogenetic relationships based genomic data—is now possible across large animal groups. Crustaceans class Malacostraca display high diversity body forms include ecologically commercially important species. In this study, comprehensive systematic analyses within were conducted 86 available from GenBank. Among malacostracan 54 species have identical major gene arrangement (excluding tRNAs) to pancrustacean ground pattern, including six Stomatopoda, three Amphipoda, two krill, seven Dendrobranchiata (Decapoda), 36 Pleocyemata (Decapoda). However, other 32 exhibit rearrangements. Phylogenies Bayesian nucleotide sequences protein-coding genes produced robust tree 100% posterior probability at almost all nodes. The results indicate that Amphipoda Isopoda cluster together (Edriophthalma) (BPP=100). Phylomitogenomic strong support Euphausiacea is nested Decapoda, closely related Dendrobranchiata, which also consistent evidence developmental biology. Yet taxonomic sampling genome very biased order no complete 11 16 orders. Future researches wide variety malacostracans are necessary further elucidate phylogeny group animals. With increase available, phylomitogenomics will emerge as an component Tree Life researches.