The complete mitochondrial genome of the Elongate loach Leptobotia elongata (Cypriniformes: Cobitidae).

Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University , Chengdu 610064 , P.R. China.
Mitochondrial DNA (Impact Factor: 1.71). 06/2012; 23(5):352-4. DOI: 10.3109/19401736.2012.690754
Source: PubMed

ABSTRACT The Elongate loach (Leptobotia elongata) belongs to family Cobitidae, which is endemic to the middle and upper reaches of the Yangtze River in China. In this study, the complete mitochondrial genome of L. elongata was sequenced. It was determined to be 16,591 bases. The nucleotide sequence data of 12 heavy-strand protein-coding genes of L. elongata and other 12 Cobitidae species were used for phylogenetic analyses. Trees constructed using Bayesian and maximum parsimony showed a similar topology demonstrating that L. elongate was clustered in subfamily Botiinae being sister to the subfamily Cobitinae. The trees also suggested that the genera Cobitis were polyphyletic.

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    ABSTRACT: Abstract In this study, the complete mitogenome sequence of balitorid fish, giant stone loach Triplophysa siluroides, which collected from the Yellow River, China has been sequenced by the long polymerase chain reaction method. The mitogenome, consisting of 16,574 base pairs (bp), had typical vertebrate mitochondrial gene arrangement, including 13 protein coding genes, 22 transfer RNAs, 2 ribosomal RNA genes and a noncoding control region (CR). CR of 918 bp length is located between tRNA(Pro) and tRNA(Phe). The overall base composition of Triplophysa siluroides is 28.8% for A, 28.7% for T, 25.0% for C, and 17.5% for G, with a slight AT bias of 57.5%. The complete mitochondrial genome may provide rather informative data for reconstructing and addressing new molecular perspectives for balitorid phylogenies.
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