Complete mitochondrial genomes of two lenoks, Brachymystax lenok and Brachymystax lenok tsinlingensis
文献类型: 外文期刊
作者: Si, Shengjuan 1 ; Wang, Ying 1 ; Xu, Gefeng 2 ; Yang, Shiyong 1 ; Mou, Zhenbo 2 ; Song, Zhaobin 1 ;
作者机构: 1.Sichuan Univ, Coll Life Sci, Sichuan Key Lab Conservat Biol Endangered Wildlif, Chengdu 610065, Peoples R China
2.Chinese Acad Fishery Sci, Heilongjiang River Fishery Res Inst, Harbin 150070, Peoples R China
3.Sichuan Agr Univ, Dept Aquaculture, Yaan 625014, Peoples R China
4.Sichuan Univ, Coll Life Sci, Minist Educ, Key Lab Bioresources & Ecoenvironm, Chengdu 610065, Peoples R China
关键词: Brachymystax;Lenoks;Mitochondrial genome;Protein-coding genes
期刊名称:MITOCHONDRIAL DNA ( 影响因子:0.925; 五年影响因子:0.994 )
ISSN:
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收录情况: SCI
摘要: The circular mitochondrial genomes of Brachymystax lenok and B. lenok tsinlingensis are 16,832 and 16,669 bp in length, respectively. The mitogenomes of two lenoks shared common features with those of other teleosts in terms of gene arrangement, base composition, and transfer RNA structures. The two genomes have an overall nucleotide sequence identity of 98.3%. Through the comparisons between the two lenoks, we found their gene arrangement, composition, and sizes are the same, and the AT content is identical. As with other freshwater salmonids, a T-type mononucleotide microsatellite and various tandem repeats were identified in the control regions of the lenoks. The low pairwise distance (2.1%) inferred from 12 mitochondrial protein-coding genes on heavy strand showed close proximity of B. lenok and B. lenok tsinlingensis.
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