Search

The Botia superciliaris is endemic to China and distributed mainly in the upper reaches of the Yangtze River. The complete mitochondrial genome was 16,597 bp in length, which contained 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and 1 displacement loop (D-loop) locus. Except for the ND6 gene and eight tRNA genes, all other mitochondrial genes were encoded on the heavy strand. The overall nucleotide composition was 31.6% A, 25.5% T, 27.2% C and 15.7% G, with an AT content of 57.1%. The gene composition and the structural arrangement of the B. superciliaris complete mtDNA were identical to most of the other vertebrates. The molecular data here we presented could play a useful role to study the evolutionary relationships and population genetics of Cobitidae fish. [ABSTRACT FROM AUTHOR]

The chloroplast genome sequence of Nitraria tangutorum, a desert shrub, was sequenced using high-throughput sequencing technology and analysed phylogenetically in the present study. The chloroplast genome is 159,414 bp in length, including a large single copy region of 87,924 bp and small single copy region of 18,318 bp, and a pair of inverted repeat regions of 26,586 bp. The chloroplast genome contains 110 unique genes, including 77 protein-coding genes, four ribosomal RNA genes, and 29 tRNA genes. Most of these genes are present as a single copy and in two or more copies 19 genes occurred. Seventeen genes have one intron, and clpP and ycf3 genes contain two introns. A total of 81 simple sequence repeats (SSRs) were identified, most of them were found to be mononucleotide repeats composed of A/T. In addition to SSRs, 66 repeats were identified, including 41 tandem repeats, 10 palindromic repeats, and 15 forward repeats. The phylogenetic analysis based on 54 protein-coding genes demonstrated a close relationship between N. tangutorum and other plant species in Sapindales. The complete chloroplast genome sequence of N. tangutorum will provide important data for further study of taxonomy and systematics of the genus Nitraria. [ABSTRACT FROM AUTHOR]

The complete mitochondrial genome sequence of Coal Tit (Parus ater) consisted 16,783 bp, the genome harbored the same gene order with that of other birds, contained 13 protein-coding genes, 22 tRNAs, 2 rRNAs, and 1 non-coding control region. The all tRNAs can formed typical cloverleaf secondary structures (excluding tRNASer-AGY). A total of 38 base mismatches appeared, mainly 28 for G-U mismatch, 5 for A-C mismatch, 2 for U-U mismatch. The third loci of codon existed obvious base bias. The control region was between tRNAGluand tRNAPhe, consisted 1195 bp, no repetitive sequence. [ABSTRACT FROM PUBLISHER]

The complete mitochondrial genome of Shorthead catfish ( Pelteobagrus eupogon) was obtained by DNA sequencing based on the PCR fragments. The entire genome was 16,562 bp in length, with a gene content of 13 protein-coding, 2 ribosomal RNA, and 22 transfer RNA genes, and order identical to that observed in most other vertebrates. Those genes are arranged compactly with no introns and few intergenic nucleotides. Molecular data here presented provide a useful toll for evolutionary as well as population genetic studied. [ABSTRACT FROM AUTHOR]