DNA Barcoding Reveals Unexpected Diversity of Deep-Sea Octopuses in the North-East Atlantic

IF 0.6 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Biology and Environment-Proceedings of the Royal Irish Academy Pub Date : 2023-05-05 DOI:10.1353/bae.2023.0000

M. Taite, L. Dillon, J. Strugnell, J. Drewery, A. Allcock

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引用次数: 1

Abstract

ABSTRACT:The taxonomy of Bathypolypus and Muusoctopus has long been confounded by poor original descriptions and difficulty in distinguishing among species morphologically. We aimed to use DNA barcoding in conjunction with species delimitation techniques and morphological identification of mature males to identify the species of Bathypolypus and Muusoctopus present in the North-east Atlantic and provide additional information on species distributions. From 298 specimens collected during biannual Deepwater Timeseries cruises and other aligned surveys undertaken by Marine Scotland onboard MRV Scotia between 2005–19, we identified Bathypolypus arcticus, B. ergasticus, B. bairdii, B. sponsalis, B. pugniger, Muusoctopus normani and M. johnsonianus as well as an unidentified Muusoctopus species that we conclude is likely to be a new species. We show the utility of DNA barcoding in identifying difficult to distinguish species such as deep-sea octopuses. Studies like ours are essential to provide clarity on the taxonomy of such groups and to determine the true diversity and distribution of species within them.

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DNA条形码揭示了东北大西洋深海章鱼的意外多样性

摘要:深水螅类和mususoctopus的分类由于原始描述不完整和物种形态难以区分而长期处于混乱状态。我们的目的是利用DNA条形码结合物种划分技术和成熟雄性形态鉴定来鉴定东北大西洋存在的深蛸和Muusoctopus的物种，并提供物种分布的额外信息。在2005年至2019年期间，苏格兰海洋部在MRV Scotia上进行了两年一次的深水时间系列巡查和其他相关调查，从298个标本中，我们发现了北极深息肉、B. gasticus、B. bairdii、B. sponsalis、B. pugniger、normani Muusoctopus和M. johnsonianus，以及一种未知的Muusoctopus物种，我们认为这可能是一个新物种。我们展示了DNA条形码在识别难以区分的物种(如深海章鱼)中的效用。像我们这样的研究对于明确这些群体的分类，确定其中物种的真正多样性和分布是必不可少的。

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来源期刊

Biology and Environment-Proceedings of the Royal Irish Academy 环境科学-环境科学

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

>36 weeks

期刊介绍： The journal aims to offer a broad coverage of the subject area, including the following: - biology and ecology of the Irish flora and fauna - microbial ecology - animal, plant and environmental physiology - global change - palaeoecology and palaeoclimatology - population biology; conservation of genetic resources - pollution and environmental quality; ecotoxicology - environmental management - hydrology - land use, agriculture, soils and environment. Submissions on other relevant topics are also welcome, and papers of a cross-disciplinary nature are particularly encouraged.