基于分子数据的南极蟾蜍亚科（腹足目：新腹足目）分类研究

IF 1.8 2区生物学 Q3 EVOLUTIONARY BIOLOGY

Invertebrate Systematics Pub Date : 2023-05-09 DOI:10.1071/IS22064

Y. Kantor, T. Molodtsova, Sofia Zvonareva, A. Fedosov

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引用次数: 0

摘要

摘要Buccinoidea超科是南极辐合带内新腹足目物种最多的类群，约有70种，分为21属，但在分子系统发育学中仍缺乏代表性。在最近的Buccinoidea系统发育中（Kantor等人，2022）提供的关于该群体的第一个分子数据缺乏许多重要的谱系，从而限制了对南极Buccinodiea关系的推断。我们重新审视了南极Buccinoidea的关系，涉及最近从斯科细亚海、威德尔海和邻近地区的深海和深海采集的分子级样本。我们的数据集包括25个物种（包括首次在分子基础上研究的6个属），对5个系统发育标记进行了测序：cox1基因的条形码片段、核糖体12S、16S rRNA和28S的片段以及核H3基因。基于系统发育重建，我们将Lussitromina属与Falsitromina同义，并将后者从Cominellidae重新分配到Prosiphonidae。我们确认了另外四个属，Drepanodontus属、Germonea属、Parabuccinum属和Spikebuccinu属在Prosiphonidae中的位置。我们发现了一个以前未被识别的前胡科的深层谱系，并将其描述为新的丰香属。Parabuccinum属，以前在麦哲伦省和阿根廷东海岸记录，首次在南极辐合带内被报道。我们发现了四种以前未被识别的南极原蟾蜍科物种，这是根据分子数据描述的第一个来自南极水域的蟾蜍目。根据我们的数据，除两种南极蟾蜍外，其他所有蟾蜍都属于原蟾蜍科。在最近的19个南极原蜂科属中，有7个属（36%）跨越了辐合带的边界，8个南极属是单型属（42%）。目前，南极辐合带内外都没有已知的蟾蜍科物种。ZooBank:urn:lsid:ZooBank.org/pub:DEA5199-C951-414E-9098-563EAD10BD57

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Taxonomy of Antarctic Buccinoidea (Gastropoda: Neogastropoda) revisited based on molecular data

Abstract. The superfamily Buccinoidea is the most speciose group of Neogastropoda within the Antarctic Convergence, with ~70 species classified in 21 genera, but is still poorly represented in molecular phylogenies. The first molecular data on the group presented in the recent phylogeny of the Buccinoidea (Kantor et al. 2022) lacked many important lineages, thereby limiting inference of the relationships of Antarctic Buccinoidea. We revisited relationships of the Antarctic Buccinoidea, involving recently collected molecular-grade samples from the bathyal and abyssal depths of the Scotia Sea, the Weddel Sea and adjacent regions. Our data set includes 25 species (including six genera studied on a molecular basis for the first time), sequenced for five phylogenetic markers: the barcode fragment of cox1 gene, fragments of ribosomal 12S, 16S rRNA and 28S and nuclear H3 genes. Based on phylogenetic reconstructions, we synonymise the genus Lussitromina with Falsitromina and reassign the latter from Cominellidae to Prosiphonidae. We confirm the placement of four further genera, Drepanodontus, Germonea, Parabuccinum and Spikebuccinum in Prosiphonidae. We detect a previously unrecognised deep lineage of the family Prosiphonidae and describe this as the new genus Scotiabuccinum. The genus Parabuccinum, previously recorded in the Magellanic province and off the eastern coast of Argentina was reported for the first time within the Antarctic Convergence. We discover four previously unrecognised species of Antarctic Prosiphonidae and these are the first Buccinoidea from Antarctic waters described based on molecular data. According to our data, all but two species of Antarctic Buccinoidea belong to the family Prosiphonidae. Seven of the nineteen Recent Antarctic Prosiphonidae genera (36%) cross the boundaries of the Convergence and eight Antarctic genera are monotypic (42%). Currently no Buccinoidea species are known to occur both within and outside the Antarctic Convergence. ZooBank: urn:lsid:zoobank.org:pub:DEEA1599-C951-414E-9098-563EAD10BD57

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来源期刊

Invertebrate Systematics 生物-动物学

CiteScore

4.30

自引率

9.10%

发文量

审稿时长

>12 weeks

期刊介绍： Invertebrate Systematics (formerly known as Invertebrate Taxonomy) is an international journal publishing original and significant contributions on the systematics, phylogeny and biogeography of all invertebrate taxa. Articles in the journal provide comprehensive treatments of clearly defined taxonomic groups, often emphasising their biodiversity patterns and/or biological aspects. The journal also includes contributions on the systematics of selected species that are of particular conservation, economic, medical or veterinary importance. Invertebrate Systematics is a vital resource globally for scientists, students, conservation biologists, environmental consultants and government policy advisors who are interested in terrestrial, freshwater and marine systems. Invertebrate Systematics is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science.