title: Novel gene arrangement in the mitochondrial genome of Bothus myriaster (Pleuronectiformes: Bothidae): evidence for the Dimer-Mitogenome and Non-random Loss model.
abstract: In the present study, the complete mitochondrial genome of the oval flounder Bothus myriaster was determined and a novel gene rearrangement was discovered. A striking finding was that eight genes encoded by the L-strand (ND6 and tRNA-Q, A, C, Y, S1, E, and P genes) were translocated to a position between tRNA-T and tRNA-F. Simultaneously, the original order of the rearranged genes Q-A-C-Y-S1-ND6-E-P was maintained. Thus, the genes with identical transcriptional polarities were clustered in the genome with one exception that tRNA-N gene is located in the original position. The other rearrangement was the H-strand-encoded tRNA-D that translocated from its typical location between COI and COII to a position between S1 and ND6. The Dimer-Mitogenome and Non-random Loss model (DMNL)was adopted to account for the novel rearrangement in B. myriaster mitogenome, which provides evidence to support the hypothesis of the DMNL model.
authors: a Key Laboratory of Tropical Marine Bio-resources and Ecology , South China Sea Institute of Oceanology, Chinese Academy of Sciences , Guangzhou , China and.|b Graduate University of Chinese Academy of Sciences , Beijing , China.
authors: Li
authors: L
authors: Gong
authors: a Key Laboratory of Tropical Marine Bio-resources and Ecology , South China Sea Institute of Oceanology, Chinese Academy of Sciences , Guangzhou , China and.
authors: Wei
authors: W
authors: Shi
authors: a Key Laboratory of Tropical Marine Bio-resources and Ecology , South China Sea Institute of Oceanology, Chinese Academy of Sciences , Guangzhou , China and.|b Graduate University of Chinese Academy of Sciences , Beijing , China.
authors: Min
authors: M
authors: Yang
authors: a Key Laboratory of Tropical Marine Bio-resources and Ecology , South China Sea Institute of Oceanology, Chinese Academy of Sciences , Guangzhou , China and.|b Graduate University of Chinese Academy of Sciences , Beijing , China.
authors: Donghe
authors: D
authors: Li
authors: a Key Laboratory of Tropical Marine Bio-resources and Ecology , South China Sea Institute of Oceanology, Chinese Academy of Sciences , Guangzhou , China and.
authors: Xiaoyu
authors: X
authors: Kong
mesh_terms: D000818:Animals; D001483:Base Sequence; D005412:Flatfishes / Q000235:genetics*; D023061:Gene Order; D015321:Gene Rearrangement; D014644:Genetic Variation; D054629:Genome, Mitochondrial; D023281:Genomics / Q000379:methods; D008957:Models, Genetic; D016366:Open Reading Frames; D017422:Sequence Analysis, DNA
keywords: Complete mitogenome; dimer-mitogenome; rearrangement mechanism; transcriptional polarity; translocation