Complete mitochondrial genome of Cabot's tragopan, Tragopan caboti (Galliformes: Phasianidae)

Genet Mol Res. 2010 Jun 22;9(2):1204-16. doi: 10.4238/vol9-2gmr820.

Abstract

Cabot's tragopan, Tragopan caboti, is a globally threatened pheasant endemic to southeast China. The complete mitochondrial genome of Cabot's tragopan was sequenced. The circular genome contains 16,727 bp, encoding a standard set of 13 protein-coding genes, two ribosomal RNA genes, and 22 transfer RNA genes, plus the putative control region, a structure very similar to that of other Galliformes. As found in other vertebrates, most of these genes code on the H-strand, except for the NADH dehydrogenase subunit 6 (nad6) and eight tRNA genes (Gln, Ala, Asn, Cys, Tyr, Ser(UCN), Pro, Glu). All protein-coding genes initiated with ATG, except for cox1, which began with GTG, and had a strong skew of C vs G (GC skew = -0.29 to -0.73). One extra 'C' nucleotide was found in the NADH dehydrogenase subunit 3 (nad3). All the tRNA gene sequences have the potential to fold into typical cloverleaf secondary structures. Conserved sequences in three domains were identified within the control region (D-loop). These results provide basic information for phylogenetic analyses among Galliform birds, and especially Tragopan species.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Base Sequence
  • Codon
  • DNA, Mitochondrial / genetics*
  • Databases, Genetic
  • Galliformes / genetics*
  • Genome
  • Genome, Mitochondrial*
  • Male
  • Models, Genetic
  • Molecular Sequence Data
  • Nucleic Acid Conformation
  • Nucleotides / genetics
  • RNA, Transfer / metabolism
  • Sequence Analysis, DNA

Substances

  • Codon
  • DNA, Mitochondrial
  • Nucleotides
  • RNA, Transfer