Zoologica Scripta最新文献

{"title":"Delimiting species boundaries within the Babyloniidae (Mollusca: Gastropoda: Neogastropoda) using multi‐locus phylogenetic analysis","authors":"Yu‐Hsiu Yen, Julian Joseph, Shang‐Yin Vanson Liu","doi":"10.1111/zsc.12694","DOIUrl":"https://doi.org/10.1111/zsc.12694","url":null,"abstract":"The Babyloniidae is a family of marine snails consisting of 21 species and two genera. Current taxonomic debates on the Babyloniidae are mainly due to their extremely similar shell morphologies, which have led to incorrect locality records and mislabelling in legal or illegal international trade. We have therefore constructed a phylogeny of the Babyloniidae with high species coverage (57% of the family) by using multi‐locus genes (cytochrome <jats:italic>c</jats:italic> oxidase subunit I [COI], 16S, and H3) with four species delimitation methods (Best Close Match [BCM], Assemble Species by Automatic Partitioning [ASAP], Bayesian Poisson Tree Process [bPTP] and Multi‐rate Poisson Tree Processes [mPTP]). Based on our results, 13 clades/operational taxonomic unit were observed, which confirms pre‐existing species status for 10 <jats:italic>Babylonia</jats:italic> and one <jats:italic>Zemiropsis</jats:italic> taxa: <jats:italic>B. areolata</jats:italic> (Link, 1807), <jats:italic>B. borneensis</jats:italic> (Sowerby II, 1864), <jats:italic>B. feicheni</jats:italic> Shikama, 1973, <jats:italic>B. formosae</jats:italic> (Sowerby II, 1866), <jats:italic>B. japonica</jats:italic> (Reeve, 1842), <jats:italic>B. lutosa</jats:italic> (Lamarck, 1816), <jats:italic>B. pieroangelai</jats:italic> Cossignani, 2008, <jats:italic>B. spirata</jats:italic> (Linnaeus, 1758), <jats:italic>B. valentiana</jats:italic> (Swainson, 1822), <jats:italic>B. zeylanica</jats:italic> (Bruguière, 1789) and <jats:italic>Z. papillaris</jats:italic> (Sowerby I, 1825). A monophyletic group with four species collected from Indonesia which includes <jats:italic>B. spirata</jats:italic> f. <jats:italic>balinensis</jats:italic> Cossignani, 2009, <jats:italic>B. spirata</jats:italic> f. <jats:italic>semipicta</jats:italic> (Sowerby II, 1866) and <jats:italic>B. angusta</jats:italic> Altena &amp; Gittenberger, 1981, implying they should belong to a single species, <jats:italic>B. semipicta.</jats:italic> Additionally, we suggest <jats:italic>B. formosae habei</jats:italic> Altena &amp; Gittenberger, 1981 should be escalated as <jats:italic>B. habei</jats:italic>, and not as a subspecies.","PeriodicalId":49334,"journal":{"name":"Zoologica Scripta","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A non‐monophyly of ‘crowned’ Daphnia (Ctenodaphnia) Dybowski et Grochowski, 1895 (Cladocera: Daphniidae): From genomes to morphology","authors":"Dmitry D. Pereboev, Petr G. Garibian, Dmitry P. Karabanov, Boris D. Efeykin, Yan R. Galimov, Adam Petrusek, Alexey A. Kotov","doi":"10.1111/zsc.12695","DOIUrl":"https://doi.org/10.1111/zsc.12695","url":null,"abstract":"&lt;jats:italic&gt;Daphnia&lt;/jats:italic&gt; (Crustacea: Cladocera) has been frequently used as a model taxon for studying prey antipredator defences. Among numerous representatives of this genus, there are several taxa within the subgenus &lt;jats:italic&gt;Daphnia&lt;/jats:italic&gt; (&lt;jats:italic&gt;Ctenodaphnia&lt;/jats:italic&gt;) with a morphological innovation unique for these cladocerans, a head plate. In some populations, the margin of this anterior projection of carapace into the head shield is adorned with a remarkable ‘crown of thorns’, which has been shown to be an antipredator adaptation against tadpole shrimps (Notostraca). This structure is phenotypically plastic, dependent on the presence of these omnivorous crustaceans in the respective water bodies. We aimed to evaluate the monophyly of Eurasian ‘crowned’ &lt;jats:italic&gt;Daphnia&lt;/jats:italic&gt; species (i.e., those forming the ‘crown of thorns’ under some circumstance) based on genomic phylogenies and morphology. For this study, we have individually sequenced the genomes of five daphniids, four representing taxa able to form ‘crowns’ (two specimens of different clades of the &lt;jats:italic&gt;D&lt;/jats:italic&gt;. (&lt;jats:italic&gt;C&lt;/jats:italic&gt;.) &lt;jats:italic&gt;atkinsoni&lt;/jats:italic&gt; complex and two specimens of &lt;jats:italic&gt;D&lt;/jats:italic&gt;. (&lt;jats:italic&gt;C&lt;/jats:italic&gt;.) &lt;jats:italic&gt;triquetra&lt;/jats:italic&gt; from distant populations), and &lt;jats:italic&gt;D&lt;/jats:italic&gt;. (&lt;jats:italic&gt;C&lt;/jats:italic&gt;.) &lt;jats:italic&gt;mediterranea&lt;/jats:italic&gt; distantly related to &lt;jats:italic&gt;D&lt;/jats:italic&gt;. (&lt;jats:italic&gt;C&lt;/jats:italic&gt;.) &lt;jats:italic&gt;atkinsoni&lt;/jats:italic&gt; that lacks the head plate. We analysed them along with genomes obtained from GenBank, focusing on either full mitochondrial or partial nuclear datasets (BUSCO). Our main hypothesis on a monophyly of all ‘crowned’ daphnids was rejected. Genomic analyses confirmed existence of two independent lineages able to express this phenotypic trait in the Palaearctic: (1) a monophyletic &lt;jats:italic&gt;D&lt;/jats:italic&gt;. (&lt;jats:italic&gt;C&lt;/jats:italic&gt;.) &lt;jats:italic&gt;atkinsoni&lt;/jats:italic&gt; s. lat. and (2) &lt;jats:italic&gt;D&lt;/jats:italic&gt;. (&lt;jats:italic&gt;C&lt;/jats:italic&gt;.) &lt;jats:italic&gt;triquetra&lt;/jats:italic&gt;, formally redescribed here. These lineages form a well‐supported clade together with several other species lacking a head plate (including &lt;jats:italic&gt;D&lt;/jats:italic&gt;. (&lt;jats:italic&gt;C&lt;/jats:italic&gt;.) &lt;jats:italic&gt;mediterranea&lt;/jats:italic&gt;). Genomic analyses indicate that &lt;jats:italic&gt;D&lt;/jats:italic&gt;. (&lt;jats:italic&gt;C&lt;/jats:italic&gt;.) &lt;jats:italic&gt;atkinsoni&lt;/jats:italic&gt; s. lat. is closely related to &lt;jats:italic&gt;D&lt;/jats:italic&gt;. (&lt;jats:italic&gt;C&lt;/jats:italic&gt;.) &lt;jats:italic&gt;tibetana&lt;/jats:italic&gt;; mitochondrial markers also suggest a close relationship of &lt;jats:italic&gt;D&lt;/jats:italic&gt;. (&lt;jats:italic&gt;D&lt;/jats:italic&gt;.) &lt;jats:italic&gt;triquetra&lt;/jats:italic&gt; with &lt;jats:italic&gt;D&lt;/jats:italic&gt;. (&lt;jats:italic&gt;C&lt;/jats:italic&gt;.) &lt;jats:italic&gt;studeri&lt;/jats:italic&gt;, both &lt;jats:italic&gt;D&lt;/jats:italic&gt;. (&lt;ja","PeriodicalId":49334,"journal":{"name":"Zoologica Scripta","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Description of a new genus and species of deep‐sea mysids (Malacostraca, Peracarida, Mysida) from the Caroline Ridge, Northwest Pacific, with a systematic analysis of the order","authors":"Qi Kou, Kenneth Meland, Xinzheng Li","doi":"10.1111/zsc.12693","DOIUrl":"https://doi.org/10.1111/zsc.12693","url":null,"abstract":"The order Mysida Boas, 1883 is a group of small, shrimp‐like peracarid crustaceans with surprisingly high morphological and ecological diversity. In this study, a new genus and species of deep‐sea mysids, <jats:italic>Muscamysis carolinensis</jats:italic> gen. et sp. n., is described based on a solitary specimen recently collected from the Caroline Ridge, Northwest Pacific. To determine the phylogenetic position of the new genus within Mysida, we reconstruct a comprehensive multi‐gene phylogeny of the order, incorporating 45 species from 10 sub‐families and two families. Our analysis reveals strong support for a close relationship between the new genus and Mysidellinae Czerniavsky, 1882, with both forming a clade nested within Heteromysinae Norman, 1892. Notably, our findings do not support the current delineation or monophyly of most mysid sub‐families, emphasizing the necessity for further taxonomic revisions. Specifically, Palaumysinae Wittmann, 2013 is now synonymized with Erythropinae Hansen, 1910, while Heteromysinae is synonymized with Mysidellinae. Bayesian divergence time estimation uncovers, for the first time, multiple independent coastal subterranean colonizations of mysids during the Mesozoic. Ancestral state reconstruction analyses suggest that characters, such as the cleft telson and reduced male pleopods, are the results of parallel evolution, indicating that certain diagnostic characters may not be apomorphic, thereby necessitating more substantial revisions to the current higher‐level classification of the order.","PeriodicalId":49334,"journal":{"name":"Zoologica Scripta","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A phylogeographic analysis of the North American medicinal leech, Macrobdella decora (Say, 1824)","authors":"Nat Kennedy, Sebastian Kvist, Alejandro Oceguera‐Figueroa, Anna J. Phillips, Donald F. Stacey, Danielle de Carle","doi":"10.1111/zsc.12692","DOIUrl":"https://doi.org/10.1111/zsc.12692","url":null,"abstract":"In spite of their important roles in many ecosystems, data regarding population structure and biogeographic patterns of leeches are scarce. To begin to address this knowledge gap, we herein perform a phylogeographic analysis of the North American medicinal leech, <jats:italic>Macrobdella decora</jats:italic> (Say, 1824). A total of 224 <jats:italic>M. decora</jats:italic> specimens were collected from 35 localities across large swaths of USA and Canada and covering most of the known range of the species. Using four loci (mitochondrial cytochrome <jats:italic>c</jats:italic> oxidase subunit I [COI] and NADH dehydrogenase I [ND1], as well as nuclear 18S rRNA [18S] and 28S rRNA [28S]), we construct phylogenetic trees using several optimality criteria and superimpose geographic patterns onto the trees in order to tease out any potential structure among the populations. Rather surprisingly, given the large geographic range of the species and abundance of potential geographic barriers to gene flow, the analyses showed a conspicuous lack of structure among the different populations of <jats:italic>M. decora</jats:italic>. However, an AMOVA did show statistically significant differences between the genetic variation within populations and between populations (COI: FST = 0.65412, <jats:italic>p</jats:italic> &lt; .00001; ND1: FST = 0.69245, <jats:italic>p</jats:italic> &lt; .00001), which was largely driven by only 6 out of the 35 populations, and indicated a potential barrier for dispersal across the Appalachian Mountains. Finally, a Mantel test showed a weak, but significant, correlation between geographic distance and genetic distance (COI: <jats:italic>r</jats:italic> = 0.209, <jats:italic>p</jats:italic> = .027; ND1: <jats:italic>r</jats:italic> = 0.1289, <jats:italic>p</jats:italic> = .030); however, this correlation was primarily driven by a single locality. The overall weak structure suggests that <jats:italic>M. decora</jats:italic> is panmictic throughout its range, and we discuss this in light of previous population level studies in both bloodfeeding and non‐bloodfeeding species, concluding that the lack of structure in <jats:italic>M. decora</jats:italic> might be due to its high capacity for dispersal via hosts.","PeriodicalId":49334,"journal":{"name":"Zoologica Scripta","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Conservation genetics of barbel species (Teleostei, Cyprinidae) facing hybridization and introgression along an elevational gradient in protected areas of northern Italy","authors":"Claudio Ferrari, Federica Piccoli, Andrea Voccia, Pietro Maria Rontani, Stefano Leonardi, Alessia Ardenghi, Francesco Nonnis Marzano, Laura Filonzi","doi":"10.1111/zsc.12691","DOIUrl":"https://doi.org/10.1111/zsc.12691","url":null,"abstract":"The European endemic barbels represent important bioindicators of river quality and are nowadays threatened by changing environmental conditions and hybridization with the invasive alien <jats:italic>Barbus barbus</jats:italic>. It is therefore fundamental to investigate interactions among species and adaptability to climate changes in protected areas of Northern Apennines. An investigation was carried out considering 248 barbel samples that were analysed for <jats:italic>Cytb</jats:italic> mitochondrial DNA and 192 at 10 microsatellite loci, to delineate the distribution and population structure of the two native species as well as the impact of invasive <jats:italic>B. barbus</jats:italic> inside 15 sites of the Natura 2000 network. The complex distribution of the native barbel species was highlighted, together with a significant genetic structure emerging in different populations. Only one site revealed a “pure” population of <jats:italic>B. caninus</jats:italic> while the other ones showed a high level of hybridization between the different barbel species. For the <jats:italic>B. plebejus</jats:italic> two “genetically pure” populations were found in the hill‐mountain sector, while the hybridization level resulted in increasing in the lowest altitudinal stretch of watercourses with a consistent contribution driven by <jats:italic>B. barbus</jats:italic>. We herein present the first evidence of <jats:italic>B. barbus</jats:italic> introgression along an altitudinal gradient, carried from the lowland water course to mountain stretches driven by <jats:italic>B. plebejus</jats:italic> migration. <jats:italic>B. plebejus</jats:italic> is the species that can act as vicariant organism able to transfer the <jats:italic>B. barbus</jats:italic> genome from the plain habitats into <jats:italic>B. caninus</jats:italic> genome of the higher altitude waterstreams, as a consequence of habitat shifts due to climate changes and anthropogenic acitivities.","PeriodicalId":49334,"journal":{"name":"Zoologica Scripta","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142181772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrative taxonomy reveals inflated biodiversity in the European Temnothorax unifasciatus complex (Hymenoptera: Formicidae)","authors":"Sándor Csősz, Antonio Alicata, Ferenc Báthori, Christophe Galkowski, Enrico Schifani, Zalimkhan Yusupov, Gábor Herczeg, Matthew M. Prebus","doi":"10.1111/zsc.12690","DOIUrl":"https://doi.org/10.1111/zsc.12690","url":null,"abstract":"<jats:italic>Temnothorax unifasciatus</jats:italic> (Latreille, 1798) is a widely distributed pan‐European species from the Iberian Peninsula to the Caucasus. This taxon's relatively high morphological variability prompts the taxonomists of earlier times and today to mention the morphologically different elements at specific or subspecific ranks. This paper aims to understand the population structure and genetic diversity within this lineage via integrative taxonomy, incorporating molecular phylogenetics, species delimitation analyses and multivariate analyses of continuous morphometric data from across the geographic range of the <jats:italic>T. unifasciatus</jats:italic> complex. Phylogenetic analyses yielded incongruent trees. The genealogical diversity index (gdi) and the confirmatory analyses on morphological data found only weak, ambiguous delimitations within the <jats:italic>unifasciatus</jats:italic> complex. The most highly supported scenario splits <jats:italic>T. brackoi</jats:italic> from the remaining <jats:italic>unifasciatus</jats:italic> complex with ambiguous support (gdi = 0.56). This scenario is supported by multivariate morphometry with 100% accuracy in classification success. Instead, our results suggest complex morphological and genetic population structuring within the broad range of <jats:italic>T. unifasciatus</jats:italic>. Therefore, we confirm the validity of two species, <jats:italic>T.</jats:italic> brackoi Salata &amp; Borowiec, 2019 and T. unifasciatus (Latreille, 1798), and propose five new junior synonymies, <jats:italic>T. cordieri</jats:italic> (Bondroit, 1918) syn. nov., <jats:italic>T. tauricus</jats:italic> (Ruzsky, 1902) syn. nov., <jats:italic>T. berlandi</jats:italic> (Bondroit, 1918) syn. nov., <jats:italic>T. unifasciatus staegeri</jats:italic> (Bondroit, 1918) syn. nov., <jats:italic>T. tuberum ciscaucasicus</jats:italic> (Arnol'di, 1977) syn. nov. with the latter. To achieve maximal taxonomic stability, we designated a lectotype for <jats:italic>Temnothorax unifasciatus</jats:italic> (Latreille, 1798).","PeriodicalId":49334,"journal":{"name":"Zoologica Scripta","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141936632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unilocus delimitation methods reveal the underestimated species diversity of Thomasomys (Rodentia, Cricetidae)","authors":"Dennisse Ruelas, Víctor Pacheco, José Pérez, Juan Diaz‐Nieto, Pierre‐Henri Fabre","doi":"10.1111/zsc.12680","DOIUrl":"https://doi.org/10.1111/zsc.12680","url":null,"abstract":"<jats:italic>Thomasomys</jats:italic> is the most diverse genus of the Sigmodontinae subfamily, comprising at least 51 species. Despite recent systematic advances, the monophyly of this genus, the proposed species groups and their content, and the species limits are not yet firmly established. Using a well‐sampled mitochondrial dataset, we aim to test the monophyly of the genus, infer phylogenetic relationships among species and species groups and test the limits between valid species and candidate species. For this, we used a large matrix of 272 partial non‐redundant sequences of the cytochrome b mitochondrial gene from 40 valid and 20 candidate species. Using probabilistic approaches on this dataset, we inferred <jats:italic>Thomasomys</jats:italic> phylogenetic relationships and explored species boundaries using four unilocus species delimitation methods (ABGD, ASAP, bPTP and GMYC). <jats:italic>Thomasomys</jats:italic> sensu stricto was recovered monophyletic and well‐supported, excluding a Peruvian lineage misidentified as part of the genus. Analyses consistently recovered 10 well‐supported major clades and several paraphyletic or polyphyletic species. Delimitation methods and genetic divergences estimated that <jats:italic>Thomasomys</jats:italic> comprises between 81 and 93 putative species, thus potentially doubling the species diversity of <jats:italic>Thomasomys</jats:italic>. Such a result clearly calls for an urgent taxonomic revision of this genus and the use of further molecular loci within an integrative taxonomic approach to describe its diversity and understand its evolutionary history.","PeriodicalId":49334,"journal":{"name":"Zoologica Scripta","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141744241","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diversity and phylogeny of demosponge fauna in the abyssal nodule fields of the eastern Clarion‐Clipperton Zone, Pacific Ocean","authors":"Swee‐Cheng Lim, Helena Wiklund, Guadalupe Bribiesca‐Contreras, Adrian G. Glover, Thomas G. Dahlgren, Koh‐Siang Tan","doi":"10.1111/zsc.12683","DOIUrl":"https://doi.org/10.1111/zsc.12683","url":null,"abstract":"More than 7000 demosponge species have been described to date globally but &lt;2% are known from the abyssal plains, which occupy some 50% of the Earth's surface. The demosponge fauna in the abyssal nodule fields at Clarion‐Clipperton Zone (CCZ) in the Pacific Ocean, a region being explored for potential deep‐sea mining, is a case in point. A total of 21 species belonging to 13 genera in nine families and seven orders were identified from the eastern region of the CCZ, of which most are new to science. They are small in size (&lt;5 mm), with simple skeletons and poor spicule diversity. All ordinal representatives of Demospongiae were utilized to determine taxonomic position of the highly homoplasious tiny demosponges in our molecular phylogenetic analyses. Our results indicated <jats:italic>Plenaster craigi</jats:italic>, the most common and abundant species in the eastern CCZ, represents a new family, and possibly in a new order. Interestingly, <jats:italic>P. craigi</jats:italic> and members of the families Polymastiidae and Hamacanthidae, all filter‐feeding demosponge species, are far more abundant in nodule fields than the carnivorous sponges (Cladorhizidae) which were widely known to be the most dominant demosponge group in the abyssal depths. Lastly, it is highly likely that such tiny demosponges are present in other habitats. They might have been overlooked and/or ignored by sponge researchers in the past due to their tiny size and nondescript habitus. These demosponges could be distinct new species, not juveniles or indeterminates and warrant full taxonomic treatment.","PeriodicalId":49334,"journal":{"name":"Zoologica Scripta","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141613275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"New insights into the phylogeny of Neogastropoda aided by draft genome sequencing of a volutid snail","authors":"Hui Wang, Xing He, Chong Chen, Kexin Gao, Yuran Dai, Jin Sun","doi":"10.1111/zsc.12687","DOIUrl":"https://doi.org/10.1111/zsc.12687","url":null,"abstract":"Neogastropoda is a large order of predominantly marine gastropod molluscs, typically predatory or parasitic on other animals. It includes over 16,000 species representing a large post‐Cretaceous radiation, but the internal phylogenetic relationships of contained taxa are far from resolved, with inconsistent results from nuclear genes, mitogenomes, and morphology. One major issue in reconstructing the molecular phylogeny is the lack of high‐quality sequences for early‐diverging families and superfamilies such as Volutidae (Volutoidea). Here, we examine the superfamily‐level phylogenetic relationships in Neogastropoda, aided by newly sequenced draft genome and mitogenome of the volutid snail <jats:italic>Fulgoraria chinoi</jats:italic> from the deep sea off Japan. The genome of <jats:italic>F. chinoi</jats:italic> is relatively large at 1.54&amp;amp;#x02009;Gb but exhibits low genome heterozygosity; over 54% of this genome constitutes of repeat contents, and we find evidence for active insertion of transposable elements, particularly LINEs and SINEs. A total of 50,792 protein‐coding genes (PCGs) were predicted from the nuclear genome, and a circular mitogenome was also assembled and annotated. Our phylogenetic analyses using mitogenomes recovered each neogastropod superfamily as monophyletic, though also revealed inconsistent phylogenetic signals within superfamilies. Phylogenetic reconstructions using the PCGs resulted in a robust tree from different models and data matrices, recovering Volutoidea as the earliest diverging superfamily (among those for which comparable data is available) within a monophyletic Neogastropoda. Dated phylogenetic analysis revealed an early Cretaceous radiation of Neogastropoda, congruent with the fossil record. Our study provides a robust internal evolutionary framework for the speciose but genomically undersampled Neogastropoda, and expands the available genomic resources for this order. Genomic data for key missing lineages such as Mitroidea, Olivoidea, and Cancellariidae are much sought in the future for a full understanding of Neogastropoda evolution.","PeriodicalId":49334,"journal":{"name":"Zoologica Scripta","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141572577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular phylogenetics of the superfamily Stromboidea (Caenogastropoda): New insights from increased taxon sampling","authors":"Alison R. Irwin, Philippe Bouchet, J. Alistair Crame, Elizabeth M. Harper, Gijs C. Kronenberg, Ellen E. Strong, Suzanne T. Williams","doi":"10.1111/zsc.12685","DOIUrl":"https://doi.org/10.1111/zsc.12685","url":null,"abstract":"The superfamily Stromboidea is a clade of morphologically distinctive gastropods which include the iconic Strombidae, or ‘true conchs’. In this study, we present the most taxonomically extensive phylogeny of the superfamily to date, using fossil calibrations to produce a chronogram and extant geographical distributions to reconstruct ancestral ranges. From these results, we confirm the monophyly of all stromboidean families; however, six genera are not monophyletic using current generic assignments (Strombidae: <jats:italic>Lentigo</jats:italic>, <jats:italic>Canarium</jats:italic>, <jats:italic>Dolomena</jats:italic>, <jats:italic>Doxander</jats:italic>; Xenophoridae: <jats:italic>Onustus</jats:italic>, <jats:italic>Xenophora</jats:italic>). Within Strombidae, analyses resolve an Indo‐West Pacific (IWP) clade sister to an East Pacific/Atlantic clade, together sister to a second, larger IWP clade. Our results also indicate two pulses of strombid diversification within the Miocene, and a Tethyan/IWP origin for Strombidae—both supported by the fossil record. However, conflicts between divergence time estimates and the fossil record warrant further exploration. Species delimitation analyses using the COI barcoding gene support several taxonomic changes. We synonymise <jats:italic>Euprotomus aurora</jats:italic> with <jats:italic>Euprotomus bulla</jats:italic>, <jats:italic>Strombus alatus</jats:italic> with <jats:italic>Strombus pugilis</jats:italic>, <jats:italic>Dolomena abbotti</jats:italic> with <jats:italic>Dolomena labiosa</jats:italic>, and <jats:italic>Dolomena operosa</jats:italic> with <jats:italic>Dolomena vittata</jats:italic>. We identified cryptic species complexes within <jats:italic>Terebellum terebellum</jats:italic>, <jats:italic>Lambis lambis</jats:italic>, <jats:italic>“Canarium” wilsonorum</jats:italic>, <jats:italic>Dolomena turturella</jats:italic> and <jats:italic>Maculastrombus mutabilis</jats:italic>. We reinstate <jats:italic>Rimellopsis laurenti</jats:italic> as a species (previously synonymised with <jats:italic>R. powisii</jats:italic>) and recognise <jats:italic>Harpago chiragra rugosus</jats:italic> and <jats:italic>Lambis truncata sowerbyi</jats:italic> valid at the rank of species. Finally, we establish several new combinations to render <jats:italic>Lentigo</jats:italic>, <jats:italic>Dolomena</jats:italic>, and <jats:italic>Canarium</jats:italic> monophyletic: <jats:italic>Lentigo thersites</jats:italic>, <jats:italic>Dolomena robusta</jats:italic>, <jats:italic>Dolomena epidromis</jats:italic>, <jats:italic>Dolomena turturella</jats:italic>, <jats:italic>Dolomena taeniata</jats:italic>, <jats:italic>Dolomena vanikorensis</jats:italic>, <jats:italic>D. vittata</jats:italic>, <jats:italic>“Canarium” wilsonorum</jats:italic>, <jats:italic>Hawaiistrombus scalariformis</jats:italic>, <jats:italic>Maculastrombus mutabilis</jats:italic>, <jats:italic>Maculastrombus microurceus</jats:italic>.","PeriodicalId":49334,"journal":{"name":"Zoologica Scripta","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141547552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}