Gong L, Shi W, Si L-Z, Wang Z-M, Kong X-Y
Key Laboratory of Tropical Marine Bioresources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510000 China.
University of Chinese Academy of Sciences, Beijing, 100000 China.
Mol Biol (Mosk). 2015 May-Jun;49(3):461-71. doi: 10.7868/S0026898415030064.
The complete mitogenome of the peacock sole Pardachirus pavoninus (Lacepède, 1802) was determined. The total length is 16 536 bp, containing 13 protein-coding genes, 22 tRNA genes and two rRNA genes, as well as one control region (CR). The L-strand replication origin (OL), which is typically located in the WANCY cluster, is lost in P. pavoninus. The gene arrangement is identical to that in most teleosts. Comparison of the CR sequences among 13 soles reveals that a 211-bp fragment at the 5'-end of the CR is lost in the P. pavoninus mitogenome, responsible for its short sequence with a length of 872 bp. All typical conservative blocks (TAS, CSB-F, E, D, C, B, A, CSB-1, 2, 3) are identified. Seven out of 13 soles contain tandem repeats in the CR and the possible mechanisms of their formation are discussed. These results may provide the consensus sequences of the conserved units in the sole CR as well as molecular data for phylogenetic studies on Soleidae and Pleuronectiformes.
孔雀鳎（Pardachirus pavoninus，拉塞佩德，1802年）的完整线粒体基因组已被测定。其全长为16536碱基对，包含13个蛋白质编码基因、22个tRNA基因和两个rRNA基因，以及一个控制区（CR）。通常位于WANCY簇中的轻链复制起点（OL）在孔雀鳎中缺失。基因排列与大多数硬骨鱼相同。对13种鳎的CR序列进行比较发现，孔雀鳎线粒体基因组中CR 5'-端的一个211碱基对片段缺失，导致其序列较短，长度为872碱基对。所有典型的保守区域（TAS、CSB-F、E、D、C、B、A、CSB-1、2、3）均被鉴定出来。13种鳎中有7种在CR中含有串联重复序列，并对其形成的可能机制进行了讨论。这些结果可能为鳎CR中保守单元的共有序列提供依据，也为舌鳎科和鲽形目系统发育研究提供分子数据。
