大西洋 Hansarsia(原 Nematoscelis)的综合分类方法产生了新的磷虾类群(甲壳纲:大戟科)

IF 1.8 2区 生物学 Q3 EVOLUTIONARY BIOLOGY
D. N. Kulagin, U. V. Simakova, A. A. Lunina, A. L. Vereshchaka
{"title":"大西洋 Hansarsia(原 Nematoscelis)的综合分类方法产生了新的磷虾类群(甲壳纲:大戟科)","authors":"D. N. Kulagin, U. V. Simakova, A. A. Lunina, A. L. Vereshchaka","doi":"10.1071/is23034","DOIUrl":null,"url":null,"abstract":"<p>A recent molecular phylogenetic and biogeographic study on the krill genus <i>Hansarsia</i> revealed undescribed cryptic diversity in the Atlantic. Each of four species analysed encompassed robust molecular clades that were linked to dimorphic males in <i>H. microps</i>, <i>H. atlantica</i> and <i>H. tenella</i>. We tested the robustness and divergence of the observed clades using an integrative approach including (1) three independent species delimitation methods for the mitochondrial <i>COI</i> gene (ASAP, GMYC, bPTP), (2) variability of two nuclear genes (<i>H3</i> and <i>ITS1</i>) and (3) morphological analysis (MDS and PCA) with a dataset of 22 characters scored for 131 specimens. Both molecular and morphological analyses resulted in at least six distinct clades within the Atlantic <i>Hansarsia.</i> The strongest divergence was revealed between the two clades of <i>H. tenella</i>, one of which we diagnosed as a new species. Two clades of <i>H. megalops</i> also showed significant divergence but in the absence of males, we were reluctant to designate new species. Different clades linked to male forms in <i>H. microps</i> and <i>H. atlantica</i> are suggested as an incipient species. We also hypothesise an unusual trend in the evolution of euphausiids, in which visual recognition enhances tactile interaction during mating. Our results show that analyses of ostensibly well studied groups may yet yield taxonomic surprises.</p><p>ZooBank: urn:lsid:zoobank.org:pub:AE045636-50EF-450A-B9B3-9231E8B91522</p>","PeriodicalId":54927,"journal":{"name":"Invertebrate Systematics","volume":"31 1","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2024-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"An integrative taxonomic approach to the Atlantic Hansarsia (formerly Nematoscelis) yields new krill taxa (Crustacea: Euphausiidae)\",\"authors\":\"D. N. Kulagin, U. V. Simakova, A. A. Lunina, A. L. Vereshchaka\",\"doi\":\"10.1071/is23034\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>A recent molecular phylogenetic and biogeographic study on the krill genus <i>Hansarsia</i> revealed undescribed cryptic diversity in the Atlantic. Each of four species analysed encompassed robust molecular clades that were linked to dimorphic males in <i>H. microps</i>, <i>H. atlantica</i> and <i>H. tenella</i>. We tested the robustness and divergence of the observed clades using an integrative approach including (1) three independent species delimitation methods for the mitochondrial <i>COI</i> gene (ASAP, GMYC, bPTP), (2) variability of two nuclear genes (<i>H3</i> and <i>ITS1</i>) and (3) morphological analysis (MDS and PCA) with a dataset of 22 characters scored for 131 specimens. Both molecular and morphological analyses resulted in at least six distinct clades within the Atlantic <i>Hansarsia.</i> The strongest divergence was revealed between the two clades of <i>H. tenella</i>, one of which we diagnosed as a new species. Two clades of <i>H. megalops</i> also showed significant divergence but in the absence of males, we were reluctant to designate new species. Different clades linked to male forms in <i>H. microps</i> and <i>H. atlantica</i> are suggested as an incipient species. We also hypothesise an unusual trend in the evolution of euphausiids, in which visual recognition enhances tactile interaction during mating. Our results show that analyses of ostensibly well studied groups may yet yield taxonomic surprises.</p><p>ZooBank: urn:lsid:zoobank.org:pub:AE045636-50EF-450A-B9B3-9231E8B91522</p>\",\"PeriodicalId\":54927,\"journal\":{\"name\":\"Invertebrate Systematics\",\"volume\":\"31 1\",\"pages\":\"\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2024-01-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Invertebrate Systematics\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1071/is23034\",\"RegionNum\":2,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"EVOLUTIONARY BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Invertebrate Systematics","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1071/is23034","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"EVOLUTIONARY BIOLOGY","Score":null,"Total":0}
引用次数: 0

摘要

最近一项关于磷虾属 Hansarsia 的分子系统学和生物地理学研究揭示了大西洋中未被描述的隐性多样性。在分析的四个物种中,每个物种都包含了强大的分子支系,这些支系与微小磷虾(H. microps)、亚特兰蒂斯磷虾(H. atlantica)和tenella磷虾(H. tenella)的二型雄性有关。我们采用综合方法测试了观察到的支系的稳健性和分化情况,包括:(1)线粒体 COI 基因的三种独立物种划分方法(ASAP、GMYC 和 bPTP);(2)两个核基因(H3 和 ITS1)的变异性;(3)形态分析(MDS 和 PCA),数据集包含 131 个标本的 22 个特征。分子和形态分析结果表明,大西洋 Hansarsia 至少有六个不同的支系。H. tenella 的两个支系之间的差异最大,其中一个支系被我们诊断为一个新物种。H. megalops的两个支系也显示出显著的分化,但由于没有雄性,我们不愿意将其定为新种。与 H. microps 和 H. atlantica 中雄性形式相关的不同支系被认为是一个萌芽物种。我们还提出了一个不同寻常的假设,即在交配过程中,视觉识别增强了触觉互动,这也是 euphausiids 的进化趋势。我们的研究结果表明,对表面上研究透彻的类群进行分析可能会在分类学上带来惊喜。ZooBank: urn:lsid:zoobank.org:pub:AE045636-50EF-450A-B9B3-9231E8B91522
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An integrative taxonomic approach to the Atlantic Hansarsia (formerly Nematoscelis) yields new krill taxa (Crustacea: Euphausiidae)

A recent molecular phylogenetic and biogeographic study on the krill genus Hansarsia revealed undescribed cryptic diversity in the Atlantic. Each of four species analysed encompassed robust molecular clades that were linked to dimorphic males in H. microps, H. atlantica and H. tenella. We tested the robustness and divergence of the observed clades using an integrative approach including (1) three independent species delimitation methods for the mitochondrial COI gene (ASAP, GMYC, bPTP), (2) variability of two nuclear genes (H3 and ITS1) and (3) morphological analysis (MDS and PCA) with a dataset of 22 characters scored for 131 specimens. Both molecular and morphological analyses resulted in at least six distinct clades within the Atlantic Hansarsia. The strongest divergence was revealed between the two clades of H. tenella, one of which we diagnosed as a new species. Two clades of H. megalops also showed significant divergence but in the absence of males, we were reluctant to designate new species. Different clades linked to male forms in H. microps and H. atlantica are suggested as an incipient species. We also hypothesise an unusual trend in the evolution of euphausiids, in which visual recognition enhances tactile interaction during mating. Our results show that analyses of ostensibly well studied groups may yet yield taxonomic surprises.

ZooBank: urn:lsid:zoobank.org:pub:AE045636-50EF-450A-B9B3-9231E8B91522

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
Invertebrate Systematics
Invertebrate Systematics 生物-动物学
CiteScore
4.30
自引率
9.10%
发文量
35
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.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信