（多毛纲，叶须虫科）线粒体全基因组的首次报道及系统发育分析
First report of the complete mitochondrial genome and phylogenetic analysis of (Aphroditidae, Annelida).
作者信息
Wang Zongxing, Li Xiuqi, Xu Zongjun, Liu Hongzhan, Wang Yanan, Zheng Fengrong
机构信息
Marine Ecology Research Center of First Institute Oceanography, Ministry of Natural Resources, Qingdao, PR China.
Shandong Freshwater Fisheries Research Institute, Jinan, PR China.
出版信息
Mitochondrial DNA B Resour. 2019 Nov 20;4(2):4116-4117. doi: 10.1080/23802359.2019.1692712.
In this study, the complete mitochondrial genome of the was sequenced. The complete mitochondrial genome was circular and 15,288 bp in length, consisted of a typical set of 13 protein-coding genes (PCGs), 2 ribosomal RNA (rRNA) genes, 22 transfer RNA (tRNA) genes, and 1 non-coding control region. All these genes are in the heavy strand. The non-coding control region is 672 bp in length, and located between tRNA-Ser and tRNA-Leu. The overall nucleotides base composition of the heavy strand is 31.02% for A, 22.76% for C, 12.49% for G, and 33.73% for T, with a slight A + T-rich feature (64.75%). All of the PCGs begin with ATG as their start codon and the , and are terminated with TAA, , , , and are terminated with TAG, while others are terminated by incomplete codon T. Seen from the phylogenetic tree, has a more close relationship with than other species.
在本研究中，对该物种的完整线粒体基因组进行了测序。完整的线粒体基因组呈环状，长度为15288 bp，由一组典型的13个蛋白质编码基因（PCGs）、2个核糖体RNA（rRNA）基因、22个转运RNA（tRNA）基因和1个非编码控制区组成。所有这些基因都位于重链上。非编码控制区长度为672 bp，位于tRNA-Ser和tRNA-Leu之间。重链的总体核苷酸碱基组成为：A占31.02%，C占22.76%，G占12.49%，T占33.73%，具有轻微的A+T富集特征（64.75%）。所有的PCGs均以ATG作为起始密码子，其中， 、 和 以TAA作为终止密码子， 、 、 、 和 以TAG作为终止密码子，而其他的则以不完整密码子T作为终止密码子。从系统发育树来看，该物种与 相比，与其他物种的关系更为密切。
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