Characterization of the complete mitochondrial genome of Cynoglossus gracilis and a comparative analysis with other Cynoglossinae fishes.
Mitochondrial genomes can provide basic information for phylogenetic analysis and evolutionary studies. We present here the mitochondrial genome of Cynoglossus gracilis, which is 16,565bp in length. Numerous distinct regions were identified, including 13 protein-coding genes (PCGs), 22 tRNA genes, two rRNA genes, a light-strand replication origin, and a control region. Interestingly, we detected rearrangement of genes in C. gracilis, including a control region translocation, tRNA(Gln) gene inversion, and tRNA(Ile) gene shuffling. Additionally, a phylogenetic analysis based on the nucleotide sequences of the 13 PCGs using maximum likelihood and Bayesian inference methods reveals that C. gracilis is closely related to Cynoglossus semilaevis. This study provides important mitogenomic data for analyzing phylogenetic relationships in the Cynoglossinae.
Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao 266071, China.
Min
M
Wei
Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao 266071, China.
Yang
Y
Liu
Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao 266071, China.
Hua
H
Guo
Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao 266071, China.
Fazhen
F
Zhao
Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China; Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences (CAFS), Key Laboratory for Sustainable Development of Marine Fisheries, Ministry of Agriculture, Qingdao 266071, China. Electronic address: chensl@ysfri.ac.cn.
Songlin
S
Chen
D000818:Animals; D002681:China; D002874:Chromosome Mapping; D004272:DNA, Mitochondrial; D005412:Flatfishes / Q000145:classification / Q000235:genetics*; D015321:Gene Rearrangement; D054629:Genome, Mitochondrial; D010802:Phylogeny; D011506:Proteins / Q000235:genetics; D017422:Sequence Analysis, DNA; D013045:Species Specificity
D004272:DNA, Mitochondrial; D011506:Proteins
Cynoglossinae; Cynoglossus gracilis; Mitochondrial genome; Phylogenetic analysis