Zhang Shuhuan, Wei Qiwei, Wang Ke, Du Hao, Xin Miaomiao, Wu Jinming
a Key Laboratory of Freshwater Biodiversity Conservation , Ministry of Agriculture of China, Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences , Wuhan , China.
Mitochondrial DNA A DNA Mapp Seq Anal. 2016 May;27(3):1950-2. doi: 10.3109/19401736.2014.971302. Epub 2014 Oct 16.
Hucho hucho, one of the most endangered members of the family Salmonidae, is endemic to the Danube basin. In this study, the complete mitochondrial genome of H. hucho was sequenced and characterized. The genome is 16,751 bp in length and contains 13 protein-coding genes, 2 ribosomal RNAs, 22 transfer RNAs and a noncoding control region. The gene arrangement and nucleotide composition of the mitochondrial genome are similar to those of H. bleekeri. An 82 bp tandem repeat was identified in the control region, which is variable in length and copy number of repeat between and within species. The complete mitochondrial DNA of H. hucho should be useful to study population genetics, biogeography and adaptive evolution of this lineage.
多瑙哲罗鱼是鲑科中最濒危的物种之一，为多瑙河流域特有。在本研究中，对多瑙哲罗鱼的完整线粒体基因组进行了测序和特征分析。该基因组长度为16,751 bp，包含13个蛋白质编码基因、2个核糖体RNA、22个转运RNA和一个非编码控制区。线粒体基因组的基因排列和核苷酸组成与石川哲罗鱼相似。在控制区鉴定出一个82 bp的串联重复序列，其长度和物种间及物种内的重复拷贝数存在差异。多瑙哲罗鱼的完整线粒体DNA对于研究该谱系的群体遗传学、生物地理学和适应性进化具有重要意义。
