Gomes-Dos-Santos André, Vilas-Arrondo Nair, Machado André M, Veríssimo Ana, Pérez Montse, Baldó Francisco, Castro L Filipe C, Froufe Elsa
CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, Terminal de Cruzeiros de Leixões, Av. General Norton De Matos s/n, University of Porto, Matosinhos, Portugal.
Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal.
Mitochondrial DNA B Resour. 2021 Feb 9;6(2):420-422. doi: 10.1080/23802359.2020.1870887.
Cartilaginous fish are fascinating taxa, present in the folklore and art of many different cultures. Moreover, they display several unique anatomical, physiological, molecular, and behavioral characteristics making them extremely interesting from a biological perspective. Nevertheless, some crucial knowledge gaps remain, including phylogenetic relationships among extant species. Here, we produced the complete mitogenome sequence of the large-eyed rabbitfish, (Chimaeriformes). The complete mitogenome is 19,435 bp long and shows the same overall content, i.e. 13 protein-coding genes, 22 transfer RNA, and two ribosomal RNA genes, as all other examined Chondrichthyan mitogenomes. Phylogenetic reconstructions including 12 Holocephalan and three outgroup Elasmobranch mitogenomes place the within the family Chimaeridae but revealed paraphyletic and , in line with a previous study, highlighting the importance for collecting additional molecular data to improve phylogenetic reconstruction in this group of vertebrates.
软骨鱼是迷人的类群，存在于许多不同文化的民俗和艺术之中。此外，它们展现出若干独特的解剖学、生理学、分子学和行为学特征，从生物学角度来看，这些特征让它们极具吸引力。然而，一些关键的知识空白依然存在，包括现存物种之间的系统发育关系。在此，我们生成了大眼银鲛（银鲛目）的完整线粒体基因组序列。该完整线粒体基因组长度为19,435 bp，与所有其他已检测的软骨鱼类线粒体基因组一样，具有相同的总体组成，即13个蛋白质编码基因、22个转运RNA和两个核糖体RNA基因。系统发育重建分析纳入了12个全头亚纲和3个外群板鳃亚纲线粒体基因组，结果将大眼银鲛置于银鲛科内，但显示银鲛属和兔银鲛属并系，与之前的一项研究一致，这凸显了收集更多分子数据以改进这一脊椎动物类群系统发育重建的重要性。
