Zoological Journal of the Linnean Society最新文献_第7页

Neurocranial anatomy of Paralligator (Neosuchia: Paralligatoridae) from the Upper Cretaceous of Mongolia Neurocranial Paralligator解剖(Neosuchia: Paralligatoridae)上白垩纪的蒙古

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-12-13 DOI: 10.1093/zoolinnean/zlae177

Ivan T Kuzmin, Ekaterina A Sichinava, Evgeniia V Mazur, Victor A Gombolevskiy, Andrey G Sennikov, Pavel P Skutschas

{"title":"Neurocranial anatomy of Paralligator (Neosuchia: Paralligatoridae) from the Upper Cretaceous of Mongolia","authors":"Ivan T Kuzmin, Ekaterina A Sichinava, Evgeniia V Mazur, Victor A Gombolevskiy, Andrey G Sennikov, Pavel P Skutschas","doi":"10.1093/zoolinnean/zlae177","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae177","url":null,"abstract":"Neurocranial features appear to be phylogenetically informative and key in assessing the still contentious relationships within Crocodylomorpha. However, the braincases of many non-crocodylian taxa are incompletely studied precluding the assessment of evolutionary modifications at the base of Crocodylia. Here, we describe the braincase osteology and neuroanatomy of the paralligatorid crocodylomorph Paralligator from the Upper Cretaceous of Mongolia based on computed tomography (CT)-scanning, segmentation, and 3D modelling of several specimens. The anatomy of the brain endocast, nerves, and the paratympanic pneumatic cavities of Paralligator is consistent with its phylogenetic position close to or at the base of Eusuchia. Paralligator shares a suit of neuroanatomical features with basal eusuchians and crocodylians reflecting the plesiomorphic condition for Crocodylia. In addition, differences in the brain endocasts between the larger-sized individuals of Paralligator and Kansajsuchus and the smaller Shamosuchus are consistent with ontogenetic changes in extant crocodylians. This suggests that members of the more basal clade Paralligatoridae and the crown-group Crocodylia share similar brain modifications during ontogeny. We also review the distribution of the mesethmoid in Crocodylomorpha and show its presence in several clades including Paralligatoridae and Dyrosauridae.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"67 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142939649","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}

引用次数: 0

Hidden species’ diversity and phylogenetic relationships within the terrestrial isopod genus Tiroloscia (Crustacea: Isopoda: Oniscidea) 陆生等足动物Tiroloscia属中隐藏物种的多样性及其系统发育关系（甲壳纲：等足目：蛇尾纲）

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-12-13 DOI: 10.1093/zoolinnean/zlae173

Pietro Gardini, Simone Sabatelli, Stefano Taiti, Paolo Audisio

{"title":"Hidden species’ diversity and phylogenetic relationships within the terrestrial isopod genus Tiroloscia (Crustacea: Isopoda: Oniscidea)","authors":"Pietro Gardini, Simone Sabatelli, Stefano Taiti, Paolo Audisio","doi":"10.1093/zoolinnean/zlae173","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae173","url":null,"abstract":"Defining species boundaries may result challenging and has been a widely debated issue in the last decades. In cases of cryptic or “pseudocryptic” species, molecular approaches can be a valuable tool to provide taxonomic hypotheses and significantly complement morphological taxonomy. Here, two mitochondrial and one nuclear markers were used to study the phylogenetic relationships within the genus Tiroloscia, paying particular attention to Tiroloscia exigua. Moreover, we used a molecular clock to define a time window for the diversification of the main lineages within the species and explore aspects of its evolutionary history. Finally, four species delimitation methods were applied to clarify taxonomy and validate species boundaries. We found strong evidence against the monophyly of Tiroloscia and a surprisingly high level of genetic diversity within Tiroloscia exigua, supported by morphology. Notably, five evolutionary lineages were identified within T. exigua, suggesting the presence of distinct taxonomic entities. Divergence time estimation places the onset of T. exigua diversification around the middle Miocene (~12.2 Mya). Based on phylogenetic and morphological results, we propose the resurrection of Tiroloscia squamuligera as a valid species. Our results underscore the importance of molecular approaches to uncover hidden diversity, particularly in terrestrial isopods which may hide still underestimated biodiversity.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"35 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142937691","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}

引用次数: 0

Insights into the phylogeny of longhorn beetles from phylogenomic data 从系统基因组学数据了解长角甲虫的系统发育

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-12-13 DOI: 10.1093/zoolinnean/zlae174

Nan Song, Miaomiao Wang, Qing Zhai, Huanhuan Zhang

{"title":"Insights into the phylogeny of longhorn beetles from phylogenomic data","authors":"Nan Song, Miaomiao Wang, Qing Zhai, Huanhuan Zhang","doi":"10.1093/zoolinnean/zlae174","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae174","url":null,"abstract":"Cerambycidae (Coleoptera: Chrysomeloidea) are a widely distributed group of insects with significant economic importance. Despite substantial efforts and some advancements in inferring the phylogeny of Cerambycidae, high-level phylogenetic relationships within the family, including subfamily and tribe-level classification, remain contentious. In this study, we performed whole-genome sequencing on a total of 65 species. We integrated these comprehensive genomic data with existing whole-genome and transcriptome data to conduct a phylogenetic analysis of Cerambycidae s.s. The results supported the monophyly of Lamiinae, Cerambycinae, and Spondylidinae, whereas Lepturinae and Prioninae were found to be non-monophyletic. Lamiinae were recovered as the sister group to all other Cerambycidae s.s. Spondylidinae were found to be sister to the clade comprising Lepturinae and Necydalinae, and Cerambycinae were identified as the sister group to the clade consisting of Prioninae and Parandrinae. Within Lamiinae, the tribes Mesosini, Saperdini, and Dorcaschematini were found to be monophyletic; however, Acanthocinini, Agapanthiini, Pogonocherini, Pteropliini, Lamiini, and Monochamini were non-monophyletic. This study supported the classification integrating the current Monochamini into Lamiini. Molecular dating analysis suggests that diversification within Cerambycidae s.s. began at the boundary between the Jurassic and Cretaceous periods, ~145 Mya.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"35 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142935040","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}

引用次数: 0

Recurrent evolution of breathing microtunnel system in terrestrial operculate snails (Gastropoda: Caenogastropoda: Cyclophoroidea) 陆生有盖蜗牛呼吸微隧道系统的循环进化（腹足纲：Caenogastropoda: cyclophoro总科）

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-12-12 DOI: 10.1093/zoolinnean/zlae158

Barna Páll-Gergely, Bernhard Ruthensteiner, Josef Harl, Nóra M Magonyi, Takahiro Asami, Virág Krizsik, Thomas Schwaha, Zoltán Fehér

{"title":"Recurrent evolution of breathing microtunnel system in terrestrial operculate snails (Gastropoda: Caenogastropoda: Cyclophoroidea)","authors":"Barna Páll-Gergely, Bernhard Ruthensteiner, Josef Harl, Nóra M Magonyi, Takahiro Asami, Virág Krizsik, Thomas Schwaha, Zoltán Fehér","doi":"10.1093/zoolinnean/zlae158","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae158","url":null,"abstract":"The Cyclophoroidea are a group of land snails possessing an operculum that seals the aperture when the snail withdraws its body into the shell. Several groups have developed snorkel-like tubes, which are open at their outer ends, for gas exchange when the operculum closes the aperture. The tube of the cyclophorid subfamily Alycaeinae is, however, closed at its outer end. Recent investigations revealed that the tube of Alycaeinae, which starts to develop in subadults, is connected to several long microtunnels that run perpendicular to the tube and open near the umbilicus. We examined snails similar to Alycaeinae and discovered three types of gas-exchange systems that differ from the system in Alycaeinae. In Laotia, the microtunnels run to separate chambers, whereas in Platyrhaphe the microtunnels run to an internal tube. In both genera, the breathing device is already present in juveniles. Lastly, in Boucardicus there is no tube, but the microtunnels reach the common opening individually. Our molecular phylogeny, based on sequence data from the 28S, H3 and COI genes indicates that the microtunnel systems of these four groups have evolved independently. Based on these findings, three new subfamilies are proposed: Boucardicinae Páll-Gergely subfam. nov. (Hainesiidae), Laotiinae Páll-Gergely subfam. nov. (Diplommatinidae), and Platyrhaphidinae Páll-Gergely subfam. nov. (Cyclophoridae).","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"29 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142809690","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}

引用次数: 0

Cracking etymological enigmas: unravelling the Greek and Latin languages’ contributions in marine taxa nomenclature 破解词源之谜：揭示希腊语和拉丁语对海洋分类群命名的贡献

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-12-12 DOI: 10.1093/zoolinnean/zlae145

Georgios Kazanidis

{"title":"Cracking etymological enigmas: unravelling the Greek and Latin languages’ contributions in marine taxa nomenclature","authors":"Georgios Kazanidis","doi":"10.1093/zoolinnean/zlae145","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae145","url":null,"abstract":"Etymology is a key component in zoological nomenclature, often carrying key information for an organism. Greek and Latin languages have been used for centuries in synthesizing zoological names. However, there are surprisingly few studies about each language’s contribution, which is crucial for avoiding misunderstandings around names’ meaning and origin. This study examined the publications that described 1328 valid Echinodermata genera and presents results for 425 genera where etymology was provided by the authors. The analysis showed that 63.8% of genera names were composed exclusively of Greek elements, 28.0% were hybrid, 6.1% ‘other’, and 2.1% Latin. Language elements used in the formation of names were Greek (68.1%), ‘other’ (17.2%), or Latin (14.7%). The contribution of the Greek elements decreased after 1960, while the presence of hybrid increased. A decrease in the contribution of morphological elements was also observed after 1960, accompanied by an increased use of scientists’ surnames. Etymological analysis has unravelled and addressed long-lasting misconceptions about commonly used terminology. The number of studies where etymology is provided increased after 1960; this practice needs to be sustained as etymological transparency advances zoological knowledge and minimizes the risk for the development of misleading concepts in zoological nomenclature.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"3 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142809691","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}

引用次数: 0

Revisiting European and Asian Diamesa species (Diptera: Chironomidae: Diamesinae): morphological and molecular insights 欧洲和亚洲双翅目蝶蝇种重访（双翅目：手蛾科：蝶蝇科）：形态和分子的见解

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-12-11 DOI: 10.1093/zoolinnean/zlae136

Valeria Lencioni, Narcís Prat, Francesca Paoli, Raúl Acosta, Ana Rodriguez-Prieto, Giuliana Allegrucci

{"title":"Revisiting European and Asian Diamesa species (Diptera: Chironomidae: Diamesinae): morphological and molecular insights","authors":"Valeria Lencioni, Narcís Prat, Francesca Paoli, Raúl Acosta, Ana Rodriguez-Prieto, Giuliana Allegrucci","doi":"10.1093/zoolinnean/zlae136","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae136","url":null,"abstract":"Diamesa is a cold-adapted genus of Diptera: Chironomidae colonizing cold freshwaters of the Northern Hemisphere and East Africa. Global warming and glacier shrinkage are threatening their survival. In this work, we aimed to provide new insights into taxonomical gaps and phylogeny of Diamesa species from the Pyrenees, Alps, and Karakorum mountains to understand the colonization processes better and have a more accurate count of the number of endangered species. An incongruence between morphological identification and DNA barcoding (COI) was highlighted, suggesting the need for other approaches combined to estimate genetic distance. We reconstructed the phylogeny of the Palaearctic, using molecular data from two nuclear (CADI and CADIV) and three mitochondrial (COI and COII and 16S) genes. We emphasized that: (i) the Diamesa steinboecki group shares with the common ancestor of the other Diamesa species a strong cold adaptation; (ii) the European and Asian species belonging to the steinboecki group separated from each other during the Miocene (~15 Mya); and (iii) the major diversification of species in the Alps occurred during the Plio-Pleistocene epochs, mainly during the alternation of glacial and interglacial periods. This confirms the strong relationship between species evolution and climate change.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"38 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142809699","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}

引用次数: 0

Evolution of different adaptations for pollen uptake from flowers of Heliotropium (Boraginaceae) with narrow corolla tube in pollen wasps of the genus Celonites (Hymenoptera: Vespidae: Masarinae) 窄花冠管花球蜂属花粉黄蜂对花冠管窄花冠蜂花粉摄取的不同适应性进化（膜翅目：蜂科：蜂科）

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-12-11 DOI: 10.1093/zoolinnean/zlae155

Volker Mauss, Alexander V Fateryga, Christophe J Praz, Dominique Zimmermann, Henrik Mauss, Rainer Prosi

{"title":"Evolution of different adaptations for pollen uptake from flowers of Heliotropium (Boraginaceae) with narrow corolla tube in pollen wasps of the genus Celonites (Hymenoptera: Vespidae: Masarinae)","authors":"Volker Mauss, Alexander V Fateryga, Christophe J Praz, Dominique Zimmermann, Henrik Mauss, Rainer Prosi","doi":"10.1093/zoolinnean/zlae155","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae155","url":null,"abstract":"The evolution of flower-visiting behaviour in pollen wasps remains poorly investigated. The females of oligolectic Celonites species show two fundamentally different behavioural patterns for pollen uptake from Heliotropium flowers with a narrow corolla tube. They remove pollen from the concealed anthers either with their forelegs or with their proboscis. Single-frame video analysis revealed that pollen collection with the proboscis consists of a hitherto unknown, unique, and stereotypic behavioural pattern. The first phylogenetic reconstruction of Celonites based on ultra-conserved elements demonstrates that this highly complex behaviour is presumably homologous and evolved only once. It probably derived from accidental consumption of pollen adhering to the proboscis during nectar uptake and is associated with morphological adaptations of the foretarsi and mouthparts. Pollen uptake with the forelegs evolved independently. Morphological adaptations to this type of pollen uptake are the elongation of the forelegs and a tarsal pollen brush formed by hooked setae. These results confirm for pollen wasps a view that has been developed in studies of bee–flower relationships, namely that pollen collection, contrary to nectar collection, is a specific and stereotypic behaviour that often requires morphological and behavioural adaptations, possibly underlying the high rate of specialization observed in pollen-collecting Hymenoptera.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"14 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142809692","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}

引用次数: 0

Evolutionary, taxonomical, and ecological traits of the Late Neogene armadillo Macrochorobates Scillato-Yané (Xenarthra: Cingulata) 晚新近世大犰狳scillato - yan<s:1>的进化、分类学和生态学特征（异种目：斑蛛目）

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-12-10 DOI: 10.1093/zoolinnean/zlae124

Daniel Barasoain, Rodrigo L Tomassini, Sofía I Quiñones, Laureano R González-Ruiz, Ricardo A Bonini, Alfredo E Zurita

{"title":"Evolutionary, taxonomical, and ecological traits of the Late Neogene armadillo Macrochorobates Scillato-Yané (Xenarthra: Cingulata)","authors":"Daniel Barasoain, Rodrigo L Tomassini, Sofía I Quiñones, Laureano R González-Ruiz, Ricardo A Bonini, Alfredo E Zurita","doi":"10.1093/zoolinnean/zlae124","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae124","url":null,"abstract":"Within armadillos, two clades are currently recognized: Chlamyphoridae and Dasypodidae. Major evolutionary processes of Chlamyphoridae are linked to the main environmental and climatic events that occurred in South America in the Cenozoic. More precisely, the Euphractinae reached a high diversity concomitant with the cooling period of the Late Miocene–Pliocene. One of the largest euphractines is Macrochorobates, which includes the species M. scalabrinii and M. chapalmalensis, differentiated by minor details on the osteoderms of the dorsal carapace. This genus had a wide distribution, with records in Late Miocene–Pliocene deposits of different regions of Argentina. Here we describe and compare new specimens of M. scalabrinii, which represent the most complete material known so far. Our comparative analysis strongly suggests that M. chapalmalensis represents a junior synonym of M. scalabrinii. This way, the biochron of M. scalabrinii would range from the Late Miocene to the Late Pliocene. Additionally, anatomical comparisons and cladistic analysis show that Macrochorobates and Macroeuphractus (another Late Neogene large euphractine) share some cranial characters, not observable in other armadillos; therefore, we propose that Macrochorobates scalabrinii could have had intermediate carnivorous diets between more generalist taxa such as Euphractus and the specialized carnivory proposed for Macroeuphractus.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"19 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805282","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}

引用次数: 0

Gaining and losing on the way: the evolutionary scenario of reproductive diversification in genus Urodasys (Macrodasyida: Gastrotricha) inferred by multi-gene phylogeny 得失在路上：由多基因系统发育推断的腹腹蛇属生殖多样化的进化情景

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-12-10 DOI: 10.1093/zoolinnean/zlae148

Agata Cesaretti, Anush Kosakyan, Francesco Saponi, M Antonio Todaro

{"title":"Gaining and losing on the way: the evolutionary scenario of reproductive diversification in genus Urodasys (Macrodasyida: Gastrotricha) inferred by multi-gene phylogeny","authors":"Agata Cesaretti, Anush Kosakyan, Francesco Saponi, M Antonio Todaro","doi":"10.1093/zoolinnean/zlae148","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae148","url":null,"abstract":"The microscopic members of the genus Urodasys are easily recognizable due to their exceptionally long tail. There are 17 described species within this iconic genus, each distinguished by various sexual organ arrangements and reproduction modalities, including the sole known ovoviviparous gastrotrich species. The remarkable variety in reproductive characteristics has captured the interest of researchers aiming to illuminate its origin and evolution. The recent discovery of a species bearing a novel set of reproductive structures has challenged early hypotheses. However, all the evolutionary scenarios put forward need to be more convincing. To gain deeper insight into the evolutionary history of these iconic animals, we obtained the nucleotide sequence of two nuclear genes and one mitochondrial gene from species’ representatives of the four known possible combinations of the reproductive apparatus and reproduction modalities. The multi-gene data matrix was analysed phylogenetically using three approaches. The analyses yielded phylogenetic trees with invariant topology. In all cases, the specimens appear organized in four robustly supported clades and subclades that reflect their reproductive system organization. Our results suggest that the sclerotized stylet evolved inside the copulatory organ before the loss of the left testis and offers a new scenario for the evolutionary history of genus Urodasys.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"230 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805314","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}

引用次数: 0

The long-eared freshwater planarians of Madagascar form a separate phylogenetic clade within the genus Dugesia (Platyhelminthes: Tricladida), with the description of two new species 马达加斯加的长耳淡水涡虫在Dugesia属中形成了一个单独的系统发育分支，并描述了两个新种

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-12-10 DOI: 10.1093/zoolinnean/zlae143

Giacinta Angela Stocchino, Ronald Sluys, Eduard Solà, Marta Riutort, Renata Manconi

{"title":"The long-eared freshwater planarians of Madagascar form a separate phylogenetic clade within the genus Dugesia (Platyhelminthes: Tricladida), with the description of two new species","authors":"Giacinta Angela Stocchino, Ronald Sluys, Eduard Solà, Marta Riutort, Renata Manconi","doi":"10.1093/zoolinnean/zlae143","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae143","url":null,"abstract":"Madagascar and the Comoros Archipelago are inhabited by freshwater planarians of the genus Dugesia characterized by a unique morphotype with long and pointed auricles, which were traditionally ascribed to only one species, Dugesia milloti. Collections of new specimens of these long-eared freshwater triclads enabled us to examine these worms in more detail than previously had been possible and, thus, we were able to study the animals from an integrative perspective, including morphological, karyological, and molecular data. In addition, we re-examined D. milloti specimens that were available from natural history collections. In contrast to previous notions, we found that at least seven species of long-eared planarians inhabit the Malagasy inland waters, two of which are here newly described, viz., Dugesia crassimentula Sluys & Stocchino, sp. nov., and Dugesia insolita Stocchino & Sluys, sp. nov. Molecularly, the long-eared planarians form a separate phylogenetic clade that is not closely related to the other distinct morphotypes of Malagasy congeners. Furthermore, our karyological analyses revealed a new haploid (n = 5) chromosome number for the genus Dugesia, being the lowest chromosome number presently known for this genus. In addition, a previously unknown autotomy-like behaviour in freshwater triclads is reported here for the first time.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"20 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142805313","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}

引用次数: 0