Departamento de Oceanografia Biológica, Laboratório de Ecologia da Reprodução e do Recrutamento de Organismos Marinhos (ECORREP), Instituto Oceanográfico, Universidade de São Paulo, São Paulo, Brazil.
Programa de Pós-Graduação em Oceanografia, Instituto Oceanográfico, Universidade de São Paulo, São Paulo, Brazil.
Mol Biol Rep. 2024 Oct 12;51(1):1052. doi: 10.1007/s11033-024-09982-9.
Mobulidae is a monophyletic family within the Myliobatiformes that comprises pelagic species represented by manta and devil rays. Among the genus Mobula, the Atlantic Pygmy Devil Ray - Mobula hypostoma - is reported in coastal regions exclusively in tropical and subtropical Atlantic Ocean from 1 to 100 m deep. In Brazil, M. hypostoma is one of the least studied Mobula species. It is regularly misidentified, especially as Mobula thurstoni, and is commonly listed as bycatch, in fishery inventories, or related to opportunistic sightings in the national territory.
Here, we describe the complete nucleotide sequence of the mitochondrial genome (mitogenome) from Mobula hypostoma, which is 18,141 bp in length and comprises 13 protein-coding, two ribosomal RNA, and 22 transfer RNA genes. The M. hypostoma mitochondrial genes organisation and mitochondrial genome length are similar to other Mobula species, and the phylogenetic reconstruction indicates M. hypostoma as closely related to Mobula munkiana.
The Brazilian mitogenome of M. hypostoma is expected to be a valuable resource for molecular-based species identification, and evolutionary and phylogeography studies.
蝠鲼目是软骨鱼纲板鳃亚纲的一目,下辖多个物种,包括长尾蝠鲼和双吻前口蝠鲼等。在长尾蝠鲼属中,大西洋小尾蝠鲼(Mobula hypostoma)仅分布于大西洋热带和亚热带海域的近岸水域,栖息深度为 1 至 100 米。在巴西,M. hypostoma 是长尾蝠鲼属中研究最少的物种之一。它经常被错误识别,尤其是被误认为 Mobula thurstoni,并且经常被列为渔业调查的兼捕种,或在国家领土上的偶然发现。
本研究描述了大西洋小尾蝠鲼的线粒体基因组(mitogenome)的完整核苷酸序列,其长度为 18141bp,包含 13 个蛋白质编码基因、2 个核糖体 RNA 基因和 22 个转移 RNA 基因。M. hypostoma 的线粒体基因组织和线粒体基因组长度与其他长尾蝠鲼物种相似,系统发育重建表明 M. hypostoma 与 M. munkiana 关系密切。
M. hypostoma 的巴西线粒体基因组有望成为基于分子的物种鉴定、进化和系统地理学研究的宝贵资源。