A new genus of bamboo coral (Octocorallia: Scleralcyonacea: Keratoisididae) from the Whittard Canyon, Ireland, Northeast Atlantic

IF 1.8 2区生物学 Q3 EVOLUTIONARY BIOLOGY

Invertebrate Systematics Pub Date : 2024-09-16 DOI:10.1071/is24021

Declan Morrissey, A. Louise Allcock, Andrea M. Quattrini

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引用次数: 0

Abstract

Deep-sea corals are rarely identified to species due to a lack of taxonomic expertise and paucity of sampling. Herein we describe a new genus from the family Keratoisididae collected from the Northeast Atlantic. Using both nuclear (2010 conserved element loci) and complete mitogenome phylogenies, we found this genus to be closely related to the genera Dokidisis and Jasonisis. In the nuclear phylogeny, each genus occupied a distinct well-supported clade. All three genera lack thorned- or double-star sclerites in the pharynx; instead they have flattened rods, a potential unifying feature of the keratoisidid group J3 of Watling et al. (2022). The newly described genus Explorisis gen. nov. has a unique sclerome including spindles and tapered rods that differentiates it from its sister genera. Explorisis katharina sp. nov. is characterised by volcano to cylindrical shaped polyps, striated rods and spindles in the polyp body, and elongated flattened rods in the coenenchyme, whereas Explorisis poppyae sp. nov. has heavily granulated spindles and rods in both the polyp body and coenenchyme. Genetic variation within the mitogenomes across both Explorisis gen. nov. species is limited with mutations in just 3 of 14 protein coding regions.

ZooBank: urn:lsid:zoobank.org:pub:141BD76E-8C83-43BE-8E1E-B8C53CD7CEF7

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来自东北大西洋爱尔兰惠塔德峡谷的新竹珊瑚属（章鱼纲：鞘状珊瑚目：Keratoisididae

由于缺乏专业的分类学知识和采样不足，深海珊瑚很少被鉴定为物种。在本文中，我们描述了从东北大西洋采集到的 Keratoisididae 科的一个新属。通过核基因组（2010 个保守元素位点）和完整有丝分裂基因组系统进化，我们发现该属与 Dokidisis 属和 Jasonisis 属关系密切。在核系统发育中，每个属都是一个独立的支系。所有这三个属的咽部都没有刺状或双星状硬骨；相反，它们都有扁平的杆，这是 Watling 等人（2022 年）提出的角蜥属 J3 组的潜在统一特征。新描述的 Explorisis gen. nov.属具有独特的硬骨体，包括骨刺和锥形杆，这使其有别于其姊妹属。Explorisis katharina sp. nov.的特征是火山状至圆柱状的息肉、息肉体中的条状棒状物和轴状物以及辅细胞质中的拉长扁平棒状物，而 Explorisis poppyae sp.新种Explorisis gen.nov.的有丝分裂基因组内的遗传变异有限，14个蛋白质编码区中只有3个发生了突变。ZooBank: urn:lsid:zoobank.org:pub:141BD76E-8C83-43BE-8E1E-B8C53CD7CEF7

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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.