부산대학교 도서관

The mitochondrial genome sequence ofElaphe davidiis analyzed and presented for the first time in this work. The genome was 17,117 bp in length and contained 13 protein-coding genes, 2 ribosomal RNA genes, 22 transfer RNA genes and 2 control region. The overall base composition is A (35.4%), C (25.2%), T (27.0%), and G (12.4%). The base compositions present clearly the A–T skew, which was most obviously in the control region and protein-coding genes. Mitochondrial genomes analyses based on MP, ML, NJ and Bayesian analyses yielded identical phylogenetic trees, indicating a close phylogenetic affinity of the 12 Colubridae species. Two major phyletic lineages were present in Colubridae. A clade included the six species (Dinodon semicarinatus, E. poryphyracea, Oocatochus rufodorsatus, Orthriophis taeniurus, E. bimaculataandE. davidi)of subfamily Colubrinae except forOligodon ningshaanensis.Another clade (Hypsiglena chlorophaea, H. unaocularus, H. torquataandImantodes cenchoa) includedThermophis zhaoermiiandO. ningshaanensisas the sister taxon to Colubrinae. The genusElaphe, Dinodon, OocatochusandOrthriophisformed a monophyletic group with the high bootstrap value (100 %) in all examinations. [ABSTRACT FROM AUTHOR]