Choi Eun Hwa, Hwang Ui Wook
Department of Biology Education, Teachers College & Institute for Phylogenomics and Evolution, Kyungpook National University, Daegu, South Korea.
Institute for Korean Herb-Bio Convergence Promotion, Kyungpook National University, Daegu, South Korea.
Mitochondrial DNA B Resour. 2021 Mar 18;6(3):956-958. doi: 10.1080/23802359.2021.1889416.
The complete mitochondrial genome of an endangered triton snail (Littorinimorpha: Charoniidae) from South Korea was determined with the size of 15,330 bp, which contained 13 protein-coding genes, 22 tRNAs, and two rRNAs. The overall features of the mitochondrial genome are similar to those of typical gastropod mitochondrial genomes, except for the absence of a control region (CR): a conserved gene order, a high A + T content (67.45% for ), preference for AT-rich codons, etc. It is the second mitochondrial genome reported from this species after Cho et al. (2017), and there is ca. 98% sequence similarity between those of the species. According to the maximum-likelihood tree, placed within the monophyletic Tonnoidea, forming a monoclade with Cypraeoidea and Stromboidea within Littorinimorpha. Interestingly, we confirmed that Vermetoidea is placed at the basal position of the monophyletic Littorinimorpha.
测定了来自韩国的一种濒危梭尾螺（滨螺总科：梭尾螺科）的完整线粒体基因组，其大小为15330 bp，包含13个蛋白质编码基因、22个tRNA和两个rRNA。该线粒体基因组的总体特征与典型腹足纲动物线粒体基因组相似，但缺少一个控制区（CR）：基因顺序保守、A+T含量高（为67.45%）、偏好富含AT的密码子等。这是继Cho等人（2017年）之后报道的该物种的第二个线粒体基因组，该物种的两个线粒体基因组之间的序列相似性约为98%。根据最大似然树，该物种位于单系的鹑螺总科内，在滨螺总科中与宝贝总科和凤凰螺总科形成一个单系分支。有趣的是，我们证实了蠕虫螺总科位于单系滨螺总科的基部位置。
