Wang Yan, Zeng Ling, Wen Jing, Li Xuyan, Huang Yafen, Sun Yulin, Zhao Juan
Department of Scientific Research, Lingnan Normal University, Zhanjiang, PR China.
Department of Chemistry, Lingnan Normal University, Zhanjiang, PR China.
Mitochondrial DNA B Resour. 2021 Jan 12;6(1):124-126. doi: 10.1080/23802359.2020.1848474.
The complete mitochondrial genome of shrimp was obtained and characterized in this study. This complete mitochondrial genome is 16,330 bp in size and comprises 13 protein-coding genes (PCGs), two ribosomal RNA genes, and 22 transfer RNA genes. Fourteen genes were encoded by light strand and another 23 genes were encoded by heavy strand. The A + T content of the heavy-strand was 67.89%. Most PCGs had ATN as the start codon except ND4 initiated with GAT. Eleven PCGs terminated with a complete stop codon TAN, but two PCGs ( and ) had an incomplete stop codon. The phylogenetic analysis suggested that Hippolytidae shrimp may be considered as the polyphyletic taxon. These results are useful for understanding the phylogenetic relationships and evolution of Hippolytidae shrimp.
本研究获得并表征了虾的完整线粒体基因组。该完整线粒体基因组大小为16330 bp，包含13个蛋白质编码基因（PCGs）、两个核糖体RNA基因和22个转移RNA基因。14个基因由轻链编码，另外23个基因由重链编码。重链的A+T含量为67.89%。除了以GAT起始的ND4外，大多数PCGs以ATN作为起始密码子。11个PCGs以完整的终止密码子TAN终止，但两个PCGs（和）有不完整的终止密码子。系统发育分析表明，藻虾科虾可能被视为多系分类单元。这些结果有助于理解藻虾科虾的系统发育关系和进化。
