Zoological Journal of the Linnean Society最新文献_第10页

Phylogeography of Korean field mouse Apodemus peninsulae (Rodentia: Muridae): an update 朝鲜半岛田鼠（啮齿目：鼠科）的系统地理学：最新情况

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-03-27 DOI: 10.1093/zoolinnean/zlae016

Galina N Chelomina, Ilya G Meschersky, Helen Gajduchenko, Yuri M Borisov

{"title":"Phylogeography of Korean field mouse Apodemus peninsulae (Rodentia: Muridae): an update","authors":"Galina N Chelomina, Ilya G Meschersky, Helen Gajduchenko, Yuri M Borisov","doi":"10.1093/zoolinnean/zlae016","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae016","url":null,"abstract":"To better understand the evolutionary and demographic histories of the Korean field mouse Apodemus peninsulae we examined mitochondrial (mt) cytochrome b gene sequences of 200 specimens from 65 localities in China, Japan, Korea, Mongolia, and Russia. The phylogenetic and phylogeographic analyses revealed three major groups of haplotypes: “Chinese” (C), “Korean” (K) and “Russian” (R). C includes only the samples from southern and central China, K combines all samples from Korean Peninsula and some samples from Siberia, and R comprises all samples from Russian Far East, Japan, and most samples from Siberia. Both R and K also include the samples from Northern China and Mongolia. Coalescent-based approaches suggest a link between separation of these groups and intensive Kung-Huang Pleistocene uplift event of the Tibetan Plateau. The rapid expansion events in R are associated with marine isotope stages (MIS) 3 and 4, and in K with MIS 6; no sings of rapid expansion were found in C. The widespread settlement of the northeast occurred in two waves, close in time: 1) to Northern China and Korean Peninsula, and then 2) to most of Siberia, the Russian Far East and Japan; parts of Siberia, Mongolia and northern China were colonized twice.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"13 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140310467","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

A new amphibamiform from the Early Permian of Texas elucidates patterns of cranial diversity among terrestrial amphibamiforms 德克萨斯早二叠世的一种新两栖类阐明了陆生两栖类头骨多样性的模式

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-03-21 DOI: 10.1093/zoolinnean/zlae012

Calvin So, Jason D Pardo, Arjan Mann

{"title":"A new amphibamiform from the Early Permian of Texas elucidates patterns of cranial diversity among terrestrial amphibamiforms","authors":"Calvin So, Jason D Pardo, Arjan Mann","doi":"10.1093/zoolinnean/zlae012","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae012","url":null,"abstract":"Amphibamiform temnospondyls are at the forefront of discourse surrounding modern amphibian evolutionary origins. Here we present a new amphibamiform, Kermitops gratus gen. et sp. nov., from the Lower Clear Fork Formation of the Early Permian of Texas. Kermitops reveals a mosaic of features shared with other amphibamiforms and possesses unique characteristics, including an internarial fontanelle formed by the premaxillae without contribution of the nasals. It possibly possesses a basioccipital that contributes to the occipital condyle, which has significant implications for recent hypotheses of the evolution of the modern amphibian neurocranium. Parsimony analyses recover non-traditional amphibamiform relationships but place Kermitops within Amphibamiformes. Bayesian inference analysis captures a more traditional hypothesis of amphibamiform relationships; however, the time-calibrated analysis under the fossilized birth–death model recovers a topology that mirrors the parsimony topologies. The low robusticity of topologies across different permutations employing traditional and modern methods suggest a need for improvement of current morphological datasets of lissamphibian origins. A morphometric analysis of the crania of terrestrial amphibamiforms reveals the evolution of disparate cranial morphologies among coeval taxa from the Early Permian of Texas.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"26 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140192513","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

Reassessment of ‘Gyposaurus’ sinensis Young, 1941 (Dinosauria: Sauropodomorpha) from the Early Jurassic Lufeng Basin, Yunnan Province, China 重新评估中国云南省禄丰盆地早侏罗世的'Gyposaurus' sinensis Young, 1941 (Dinosauria: Sauropodomorpha)

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-03-21 DOI: 10.1093/zoolinnean/zlae032

Ya-Ming Wang, Qi Zhao, Hai-Lu You

{"title":"Reassessment of ‘Gyposaurus’ sinensis Young, 1941 (Dinosauria: Sauropodomorpha) from the Early Jurassic Lufeng Basin, Yunnan Province, China","authors":"Ya-Ming Wang, Qi Zhao, Hai-Lu You","doi":"10.1093/zoolinnean/zlae032","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae032","url":null,"abstract":"The Early Jurassic Lufeng Formation of Yunnan Province, southwestern China, has yielded a rich assemblage of early-branching sauropodomorphs. The syntype series of ‘Gyposaurus’ sinensis Young, 1941, represented by two skeletons from the Shawan Member of this formation, was the second-earliest named taxon after Lufengosaurus huenei Young, 1941. However, its taxonomic status has been debated ever since, owing to the invalidity of the genus ‘Gyposaurus’. Here, we provide a detailed redescription of the remaining syntype specimens of ‘Gyposaurus’ sinensis, including V26 and V27, which comprise almost complete postcranial skeletons. Both the unfused vertebrae and the osteohistology of the syntype specimens suggest that they are immature individuals. The morphology of the skeletons, especially that of the scapula, humerus, ilium, and femur of ‘Gyposaurus’ sinensis, is more similar to that of Lufengosaurus huenei than to that of other non-sauropodan sauropodomorphs. A phylogenetic analysis, in which ‘Gyposaurus’ sinensis and Lufengosaurus huenei were included as separate terminal taxa, recovered ‘Gyposaurus’ sinensis as part of a polytomy with Lufengosaurus huenei and Glacialisaurus, also indicating a close relationship between these taxa. Therefore, we suggest that ‘Gyposaurus’ sinensis is probably referable to a junior synonym of Lufengosaurus huenei.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"11 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140192621","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

Ontogenetic development of limb bone microstructure in the king penguin, Aptenodytes patagonicus (Miller, 1778), with considerations for palaeoecological inferences in Sphenisciformes 国王企鹅(Aptenodytes patagonicus (Miller, 1778))肢骨显微结构的个体发育过程，以及对Sphenisciformes古生态推断的考虑

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-03-20 DOI: 10.1093/zoolinnean/zlae002

Aurore Canoville, Jean-Patrice Robin, Vivian de Buffrénil

{"title":"Ontogenetic development of limb bone microstructure in the king penguin, Aptenodytes patagonicus (Miller, 1778), with considerations for palaeoecological inferences in Sphenisciformes","authors":"Aurore Canoville, Jean-Patrice Robin, Vivian de Buffrénil","doi":"10.1093/zoolinnean/zlae002","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae002","url":null,"abstract":"Birds have colonized various habitats during their evolutionary history, including the aquatic environment. Several studies have investigated the gross morphological changes of the avian skeleton in response to increasing swimming capabilities, but few have documented in detail the microstructural specializations associated with this process. Bone microstructure is nevertheless often used to reconstruct the ecology of extinct aquatic birds, although this relationship is incompletely understood in modern forms, especially for the extent of intra-specific variability related, or not, to age. In an attempt to fill this gap, we investigated the change in limb bone microstructure from hatching to adulthood in 34 Aptenodytes patagonicus specimens. Our results reveal substantial intraspecific variability, regardless of the ontogenetic stage considered. Although most skeletal growth is achieved in the first few months after hatching, limb bone microstructure undergoes important maturation throughout ontogeny until fledging, which occurs in 1-year-old chicks. Architecture and compactness in hindlimb bones mature earlier than in forelimb bones, reflecting the time offset in the use of musculoskeletal elements involved in terrestrial locomotion in chicks (hindlimbs) and sub-aquatic locomotion in adults (forelimbs). These observations allow critical reassessment of previous palaeoecological reconstructions in extinct Sphenisciformes and set a good comparative framework for rigorous inferences.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"131 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140192601","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

A new approach allows morphological recognition of cryptic diversity of the krill genus Hansarsia (formerly Nematoscelis) 用新方法识别磷虾属 Hansarsia（原 Nematoscelis）的隐蔽多样性

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-03-18 DOI: 10.1093/zoolinnean/zlae031

Alexander L Vereshchaka, Alexander V Shatravin, Dmitry N Kulagin, Anastasiia A Lunina

{"title":"A new approach allows morphological recognition of cryptic diversity of the krill genus Hansarsia (formerly Nematoscelis)","authors":"Alexander L Vereshchaka, Alexander V Shatravin, Dmitry N Kulagin, Anastasiia A Lunina","doi":"10.1093/zoolinnean/zlae031","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae031","url":null,"abstract":"Cryptic and pseudocryptic species are found on all major branches of the tree of life and probably represent a significant portion of undiscovered biodiversity, yet their identification is currently possible solely on the basis of molecular analyses. Here, we tested an alternative approach and hypothesized that all genetic clades might be identified on a morphological basis, and we analysed the morphology of nine previously detected genetic clades of Hansarsia. We made 169 sets of measurements (12 quantitative characters for each), ran multinomial logistic regression models, and showed a high ability of these models to generalize (i.e. to be able to classify correctly new specimens not included in our data matrix). The five to seven most ‘powerful’ characters provided a significant detection rate; these characters were shown to represent distinct evolutionary traits. Our findings cast some doubt on the presence of the ‘merely’ cryptic species; instead, we suggest that any genetic divergence found via traditional genetic markers is also mirrored in morphological divergence and can be detected using a combination of quantitative characters and appropriate mathematical tools. We provide a script key to genetic clades of the Atlantic Hansarsia based solely on morphological measurements and encourage other researchers to use quantitative morphological characters for detection of cryptic clades in other taxa.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"25 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140162036","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

Geometric morphometrics of silky pocket mice (Perognathus: Perognathinae: Rodentia) crania reveals new insights into their variation, evolution, and taxonomy 丝袋鼠（Perognathus: Perognathinae: Rodentia）头盖骨的几何形态计量揭示了其变异、进化和分类的新见解

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-03-12 DOI: 10.1093/zoolinnean/zlae029

Bader H Alhajeri, Randa Alaqeely, Hasan Alhaddad

{"title":"Geometric morphometrics of silky pocket mice (Perognathus: Perognathinae: Rodentia) crania reveals new insights into their variation, evolution, and taxonomy","authors":"Bader H Alhajeri, Randa Alaqeely, Hasan Alhaddad","doi":"10.1093/zoolinnean/zlae029","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae029","url":null,"abstract":"We used cranial geometric morphometric methods (GMM) to explore interspecific variation in Perognathus (silky pocket mice). We digitized 67 cranial landmarks on photographs of 305 adult voucher specimens (10 species and 33 subspecies, 121 localities). After summarizing variation patterns, we explored their association with biological, ecological, and climatic factors, and how (and why) shape evolved through time. Phenotypic clusters did not accord with phylogenetic clades, and we found instances of convergence, divergence, and increased rates of shape change. These are discussed in terms of shared selective pressures (e.g. habitat substrate and burrowing plus historic shifts in habitat/climate and desert adaptation). We also used variation patterns and phenetics to address ongoing taxonomic issues. While pocket mice are difficult to distinguish externally, GMM allowed us to precisely characterize interspecific cranial variation. Species significantly differed and could be classified based on their shape. We find P. alticola to be the most cranially distinct species and suggest raising the P. alticola + P. parvus (including P. mollipilosus) cluster/clade to subgenus status (=Cricetodipus). Cranial GMM found differences among taxa that seemed similar (i.e. cryptic) when previously explored using linear measurements (e.g. P. parvus vs. P. mollipilosus).","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"42 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140114609","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

A holistic perspective on species delimitation outperforms all methods based on single data types in freshwater gastropods (Caenogastropoda: Hydrobiidae: Pseudamnicola) 淡水腹足类（腹足纲：水螅科：伪鳞目）物种划分的整体视角优于所有基于单一数据类型的方法

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-03-05 DOI: 10.1093/zoolinnean/zlae010

Diana Delicado, Khadija Boulaassafer, Noureddine Khalloufi, Torsten Hauffe

{"title":"A holistic perspective on species delimitation outperforms all methods based on single data types in freshwater gastropods (Caenogastropoda: Hydrobiidae: Pseudamnicola)","authors":"Diana Delicado, Khadija Boulaassafer, Noureddine Khalloufi, Torsten Hauffe","doi":"10.1093/zoolinnean/zlae010","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae010","url":null,"abstract":"Freshwater gastropods are one of the most species-rich and severely threatened animal groups in continental aquatic ecosystems. Unfortunately, understanding their species diversity, which is key to conservation, is often hampered by their small size, simple morphology, and restricted distribution. This is particularly the case for spring snails of the genus Pseudamnicola (family Hydrobiidae), a species-rich taxon across the Mediterranean region. Contrasting species diversities derived from molecular phylogenies and traditional taxonomy call for a holistic approach, in which molecular markers are used to identify putative taxonomic units that can then be validated morphologically. We integrated DNA sequence and morphometric data from 92 populations into a species delimitation framework to assess the taxonomic status of 25 nominal and 14 informally recognized species of Pseudamnicola across its geographical range. Although seven discovery methods delimited a varying number of putative species, taking an integrative approach generally improved species support over single datasets. The statistically favoured integrative scheme corroborated 30 of the 39 initial species as separate entities, whereas nine require taxonomic re-evaluation. Six species are described here formally. Pseudamnicola exemplifies the importance of considering multiple lines of evidence to evaluate species diversity in taxonomically complex groups, with newly developed approaches providing the needed toolbox.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"400 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140043455","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

Distinct taxonomic practices impact patterns of bird endemism in the South American Cerrado savannas 不同的分类方法影响了南美洲塞拉多热带草原的鸟类特有性模式

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-03-03 DOI: 10.1093/zoolinnean/zlae019

Leonardo E Lopes, Luiz P Gonzaga, Marcos Rodrigues, José Maria C da Silva

{"title":"Distinct taxonomic practices impact patterns of bird endemism in the South American Cerrado savannas","authors":"Leonardo E Lopes, Luiz P Gonzaga, Marcos Rodrigues, José Maria C da Silva","doi":"10.1093/zoolinnean/zlae019","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae019","url":null,"abstract":"Identifying endemic species and the areas of endemism delimited by them is central to biogeography. However, the impact of distinct taxonomic approaches on these patterns is often neglected. We investigated how three different taxonomic approaches impact the patterns of bird endemism in the Cerrado. The first two approaches (at species and subspecies levels) were based on traditional taxonomy based on the biological species concept. The third approach was based on a revised alternative taxonomy that sought to identify evolutionarily significant units (ESUs). In this third approach, after identifying the endemic taxa using traditional taxonomy, we revised their validity, removing biologically meaningless entities. We then detected the areas of endemism delimited by these endemic taxa under the three taxonomic approaches. We found that traditional taxonomy at the species level underestimated bird endemism by ignoring some ESUs that were considered subspecies. In contrast, traditional taxonomy at the subspecies level overestimated bird endemism, leading to the recognition of spurious areas of endemism because several of the purported endemic subspecies were taxonomic artefacts. The revised taxonomy provided a more refined picture of patterns of avian endemism in the Cerrado, suggesting that the use of ESUs improves the results of biogeographical analysis.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"22 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140025419","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

Exploring the relationship between environment and brain morphology in anurans: a comparative phylogenetic approach 探索环境与无尾目动物大脑形态之间的关系：系统发育比较方法

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-03-01 DOI: 10.1093/zoolinnean/zlae025

Maycon Vitor Rodrigues, Sergio Potsch de Carvalho-e-Silva, Mark-Oliver Rödel, Andressa de Mello Bezerra

{"title":"Exploring the relationship between environment and brain morphology in anurans: a comparative phylogenetic approach","authors":"Maycon Vitor Rodrigues, Sergio Potsch de Carvalho-e-Silva, Mark-Oliver Rödel, Andressa de Mello Bezerra","doi":"10.1093/zoolinnean/zlae025","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae025","url":null,"abstract":"The correlation of ecological and behavioural characteristics with morphological features of brain structures has been recurrently corroborated for different vertebrate taxa, such as mammals, birds, and fishes. Here, we asked whether such correlations can also be detected in amphibians, an animal group of great interest due to its great behavioural and ecological diversity. We analysed the shape of two brain regions, cerebellum and optic tectum, of 67 species from 32 families of the order Anura (frogs and toads), applying 2D geometric morphometrics in a phylogenetic context. We found species that share similar environments and daily patterns have a similarly shaped cerebellum and optic tectum, with diurnal and arboreal species with more varied brain shapes. We did not find a correlation between activity mode or lifestyle with shape for both brain regions; however, we found that shared ancestry had an influence in their evolution. Future studies including a higher number of species from each ecological group, and from more families, would help to better clarify whether the patterns found here are a general rule for anurans.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"213 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140016944","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

Revision of the genus Robbea (Stilbonematinae: Desmodoridae), worldwide abundant marine nematodes with chromophoric Fe–Br inclusions and the description of a new stilbonematine genus 修订 Robbea 属（Stilbonematinae: Desmodoridae）--世界范围内大量海洋线虫，具有发色性 Fe-Br 内含物，并描述一个新的 stilbonematine 属

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2024-03-01 DOI: 10.1093/zoolinnean/zlae005

Florian Scharhauser, Daniel E M Saavedra, Philipp Pröts, Jörg A Ott, Benedikt Geier, Harald R Gruber-Vodicka, Maxim Polikarpov, Gleb Bourenkov, Nikolaus Leisch

{"title":"Revision of the genus Robbea (Stilbonematinae: Desmodoridae), worldwide abundant marine nematodes with chromophoric Fe–Br inclusions and the description of a new stilbonematine genus","authors":"Florian Scharhauser, Daniel E M Saavedra, Philipp Pröts, Jörg A Ott, Benedikt Geier, Harald R Gruber-Vodicka, Maxim Polikarpov, Gleb Bourenkov, Nikolaus Leisch","doi":"10.1093/zoolinnean/zlae005","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlae005","url":null,"abstract":"Nematodes are one of the most widespread and abundant animal taxa across aquatic and terrestrial environments. In marine shallow-water, porous sediments, members of the subfamily Stilbonematinae may be found in high numbers. Stilbonematinae are characterized by their coat of symbiotic bacteria, which give the nematodes a white appearance, while the nematodes themselves are usually colourless. We identified several species of the genus Robbea (Desmodoridae: Stilbonematinae) in which live specimens had a conspicuous dark purple coloration of the glandular sense organs (GSOs), highly specialized epidermal glands that are prominent in the Stilbonematinae. The dark inclusions in the GSOs of Robbea contained high concentrations of iron and bromide, regardless of their habitat. Morphological and phylogenetic analyses show that the genus Robbea is paraphyletic and we define the new genus Cyathorobbea gen. nov. for species with sucker-shaped post-pharyngeal supplements in males. Furthermore, we describe five new Robbea species from around the world. Some Robbea species are morphologically very similar and required the use of principal component analysis of morphometric data to untangle the diversity in this taxon. Our work emphasizes the value of live animal observations that enable the identification of important characters and highlights the overlooked diversity within the Stilbonematinae.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"213 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140017035","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