Marine and Fisheries Institute of Zhejiang Ocean University, Zhoushan 316022, China.
National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan 316022, China.
Genes (Basel). 2024 Aug 14;15(8):1076. doi: 10.3390/genes15081076.
is a predatory marine gastropod belonging to Neogastropoda and possessing considerable taxonomic significance. However, research on this species remains limited. We acquired the complete mitochondrial genome of through second-generation sequencing and conducted an analysis of its genome structural features. The mitochondrial genome of spans a total length of 16,223 bp and encompasses 37 genes (13 protein-coding genes (PCGs), 22 transfer RNAs, and 2 ribosomal RNAs). Notably, most tRNAs exhibit the typical cloverleaf structure, but there is an absence of the Dihydrouridine (DHU) arm in the and genes. The A + T content is 68.67%, indicating a pronounced AT bias. Additionally, we conducted a selection pressure analysis on the mitochondrial genomes of four species within Volutidae, revealing that all PCGs are subjected to purifying selection. In comparison to other species within Neogastropoda, shares an identical gene arrangement. Additionally, based on mitochondrial genome sequences of the 13 PCGs from 50 species within Neogastropoda, we constructed a phylogenetic tree. The phylogenetic tree indicates forms a clade with species within the family Volutidae (, , and ). This study serves as a valuable reference for future research on , offering insights for the upcoming phylogenetic and taxonomic classification within Neogastropoda. Furthermore, the findings provide valuable information for the development of genetic resources in this context.
是一种掠食性海洋腹足纲动物，属于新腹足目，具有相当重要的分类学意义。然而，对该物种的研究仍然有限。我们通过第二代测序获得了 的完整线粒体基因组，并对其基因组结构特征进行了分析。 的线粒体基因组总长为 16223bp，包含 37 个基因（13 个蛋白质编码基因（PCGs）、22 个转移 RNA 和 2 个核糖体 RNA）。值得注意的是，大多数 tRNA 表现出典型的三叶草结构，但 和 基因中缺少二氢尿嘧啶（DHU）臂。A+T 含量为 68.67%，表明存在明显的 AT 偏向性。此外，我们对 4 种卷螺科物种的线粒体基因组进行了选择压力分析，结果表明所有 PCGs 都受到纯化选择的影响。与新腹足目内的其他物种相比， 具有相同的基因排列。此外，基于 50 种新腹足目物种的 13 个 PCGs 的线粒体基因组序列，我们构建了一个系统发育树。该系统发育树表明 与卷螺科（ 、 、 ）内的物种形成一个分支。本研究为未来的 研究提供了有价值的参考，为新腹足目内的系统发育和分类学分类提供了新的见解。此外，这些发现为该领域的遗传资源开发提供了有价值的信息。
