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As reported, previous studies ofPhoxinus phoxinus ujmonensis(Cypriniformes: Cyprinidae) have focused primarily on morphology and ecology. In this study, we cloned and sequenced the complete nucleotide sequence of the mitochondrial genome forP. phoxinus ujmonensis. The mitogenome was 17,738 bp in length, including 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes and 1 control region. All genes were encoded on the heavy strain except for ND6 and eight tRNA genes. The overall base composition of the heavy strain was 28.50% for A, 28.24% for T, 25.32% for C and 17.94% for G. The control region was revealed to contain tandem repeats. The mitogenome data ofP. phoxinus ujmonensisshould contribute to phylogenetic analysis and studies of population genetics ofPhoxinusfishes. [ABSTRACT FROM AUTHOR]

In this study, we determined the complete nucleotide sequence of the mitochondrial genome for a cold water fish,Leuciscus idus. The complete mitochondrial genome was sequenced and analyzed using the primer walking method and 30 pairs of newly designed primers were used. Direct sequencing of the PCR products demonstrated that the genome contained the same 37 mitochondrial genes (two ribosomal RNA, 22 transfer RNA and 13 protein-coding genes) and two main non-coding regions (the control region and the origin of the light strand replication) as those found in other vertebrates. Nearly all the protein-coding genes’ start codons were ATG exceptCOX 1, meanwhile, the termination codons of which varied with TAA, TA, T, or TAG. [ABSTRACT FROM AUTHOR]

The complete mitochondrial genome ofLeuciscus leuciscus baicalensiswas cloned and sequenced in the present study. The genome which had a mostly conserved structural organization in comparison with that of other teleost fish was 16,606 bp in size. It consisted of 37 genes (13 protein-coding genes, 22 transfer RNA genes and 2 ribosomal RNA genes), and 2 main non-coding regions (the control region and the origin of the light strand replication). All protein-coding genes started with ATG except forCOX 1, which began with GTG. However, the termination codons of 13 protein-coding genes varied with TAA, TA, T or TAG. The complete mitochondrial genome sequence provided useful information for phylogenetic analysis and studies of population genetics ofL. leuciscus baicalensis. [ABSTRACT FROM PUBLISHER]