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Phylogeny of Strombidae (Gastropoda) Based on Mitochondrial Genomes
Frontiers in Marine Science ( IF 3.7 ) Pub Date : 2022-06-27 , DOI: 10.3389/fmars.2022.930910
Fengping Li, Jiawen Zheng, Qingxia Ma, Zhifeng Gu, Aimin Wang, Yi Yang, Chunsheng Liu

The marine gastropod Strombidae is widely distributed in tropical and subtropical regions all over the world and possesses high morphological diversity. In order to better understand how morphological characteristics evolved within Strombidae, a robust phylogenetic framework is needed. In the present study, the complete mitochondrial genomes of Lentigo lentiginosus, Euprotomus aratrum, and Canarium labiatum were sequenced. The three newly sequenced mt genomes contained 13 protein-coding genes (PCGs), 22 transfer RNA (tRNA) genes, two ribosomal RNA (rRNA) genes, and several non-coding regions, indicating a similar pattern with respect to genome size, gene order, and nucleotide composition compared with those of other strombids reported before. Two different datasets derived from mitochondrial genes were constructed to resolve the internal phylogenetic relationships of Stromboidea and Strombidae. Within Stromboidea, the sister group formed by Clade I [Rostellariidae + (Seraphsidae + Strombidae)] and Clade II [Xenophoridae + (Struthiolariidae + Aporrhaidae)] were fully recovered and supported by morphological synapomorphies as previously suggested. The phylogenetic positions of L. lentiginosus, E. aratrum, and C. labiatum were confirmed within Strombidae, and several morphological similarities were observed corresponding to the present phylogeny. A correlation between strombids speciation events and paleoclimate change was presumed. Our results indicate that complete mt genomes would be a promising tool to reconstruct a robust phylogeny of Strombidae with an increased taxon sampling in the future.



中文翻译:

基于线粒体基因组的Strombidae(腹足纲)系统发育

海洋腹足动物Strombidae广泛分布于世界各地的热带和亚热带地区,具有高度的形态多样性。为了更好地了解 Strombidae 的形态特征如何进化,需要一个强大的系统发育框架。在本研究中,完整的线粒体基因组豆蔻,Euprotomus aratrum, 和金丝雀被测序。三个新测序的 mt 基因组包含 13 个蛋白质编码基因 (PCG)、22 个转移 RNA (tRNA) 基因、两个核糖体 RNA (rRNA) 基因和几个非编码区,表明基因组大小、基因的相似模式顺序和核苷酸组成与之前报道的其他 strombids 相比。构建了源自线粒体基因的两个不同数据集,以解决 Stromboidea 和 Strombidae 的内部系统发育关系。在 Stromboidea 中,由 Clade I [Rostellariidae + (Seraphsidae + Strombidae)] 和 Clade II [Xenophoridae + (Struthiolariidae + Aporrhaidae)] 形成的姐妹群已完全恢复,并得到了形态突触的支持,如前所述。的系统发育位置L. lentiginosus,E. aratrum, 和C. 唇形在Strombidae中得到证实,并且观察到与目前的系统发育相对应的几种形态相似性。推测 strombids 物种形成事件与古气候变化之间存在相关性。我们的研究结果表明,完整的 mt 基因组将是重建 Strombidae 强大系统发育的有前途的工具,并且未来会增加分类单元的采样。

更新日期:2022-06-27
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