Zoological Journal of the Linnean Society最新文献_第2页

Evolutionary dynamics of the chromosomal changes in the genus Cyphophthalmus (Arachnida: Opiliones) on the Balkan Peninsula 巴尔干半岛棘足虫属（蛛形纲：棘足虫属）染色体变化的进化动力学

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-07-02 DOI: 10.1093/zoolinnean/zlaf068

Matyáš Hiřman, Ivo Karaman, Jana Štundlová, Pavel Just, František Šťáhlavský

{"title":"Evolutionary dynamics of the chromosomal changes in the genus Cyphophthalmus (Arachnida: Opiliones) on the Balkan Peninsula","authors":"Matyáš Hiřman, Ivo Karaman, Jana Štundlová, Pavel Just, František Šťáhlavský","doi":"10.1093/zoolinnean/zlaf068","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf068","url":null,"abstract":"We investigated the genus Cyphophthalmus within the suborder Cyphophthalmi (Arachnida: Opiliones), focusing on its cytogenetic evolution in the Balkan Peninsula. Our comprehensive analysis of 21 species revealed a notable range in diploid chromosome numbers (2n = 24–30), challenging previous assumptions of genetic uniformity within this group. Using fluorescent in situ hybridization (FISH) with an 18S rDNA probe, we detected variability in the number of loci, with evidence of independent increases in this cluster (up to five pairs). This study combines the results of phylogenetic reconstruction based on analysis of mitochondrial gene cytochrome c oxidase subunit I (COI) (including karyotyped individuals) with standard and molecular cytogenetic techniques, making it the first of its kind in harvestman research. The findings reveal a significantly higher level of biodiversity in the Balkan Peninsula than previously recognized, suggesting complex differentiation within the genus Cyphophthalmus. Additionally, our results highlight the efficacy of cytogenetics as a tool for species’ delineation, enriching our understanding of the evolutionary history of the genus and emphasizing the intricate genetic diversity shaped by the unique geological and environmental history of the Balkan Peninsula.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"71 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547170","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 first record of mayflies (Ephemeroptera: Leptophlebiidae) from Cambay amber suggests a Gondwanan mayfly fauna in Early Eocene India 从坎贝琥珀中发现的蜉蝣（蜉蝣目：蜉蝣科）的第一个记录表明在始新世早期的印度存在冈瓦纳蜉蝣群

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-07-01 DOI: 10.1093/zoolinnean/zlaf065

Pavel Sroka, Priya Agnihotri, Hukam Singh

{"title":"The first record of mayflies (Ephemeroptera: Leptophlebiidae) from Cambay amber suggests a Gondwanan mayfly fauna in Early Eocene India","authors":"Pavel Sroka, Priya Agnihotri, Hukam Singh","doi":"10.1093/zoolinnean/zlaf065","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf065","url":null,"abstract":"Insect inclusions in Early Eocene Indian Cambay amber represent the fauna of the drifting Indian plate just prior to its collision with Asia, which led to the uplift of the Himalayas. Despite the fact that India represented a fragment of Gondwana, taxa with Gondwanan affinities are nearly absent in Cambay amber. This phenomenon is caused by extinctions on the drifting Indian plate triggered by extensive volcanism on the one hand, and, on the other, the subcontinent’s relative proximity to neighbouring landmasses, which facilitated faunal exchange as early as during India’s northward passage. Here, we present a description of the first mayfly fossils from Cambay amber, consisting of two male imagoes from the family Leptophlebiidae, clade Atalophleboculata. We describe one of the studied specimens as Aikahika veta gen. et sp. nov. This record represents the oldest unambiguous occurrence of Atalophleboculata, reaching its highest extant diversity in the fragments of former Gondwana, where it most likely originated. The mayfly fossils reported herein thus probably constituted one of the few Gondwanan survivors on the drifting Indian plate.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"26 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144520857","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

Taxonomy and phylogeny of two planktonic hypotrichs, with establishment of a new family Pelagotrichidiidae (Protista: Ciliophora: Hypotrichia) 两种浮游下毛虫的分类和系统发育，并建立了一新科（原生目：纤毛虫目：下毛虫目）

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-07-01 DOI: 10.1093/zoolinnean/zlaf061

Meijie Hong, Zihui Zhang, Hongbo Pan, Jiamei Jiang

{"title":"Taxonomy and phylogeny of two planktonic hypotrichs, with establishment of a new family Pelagotrichidiidae (Protista: Ciliophora: Hypotrichia)","authors":"Meijie Hong, Zihui Zhang, Hongbo Pan, Jiamei Jiang","doi":"10.1093/zoolinnean/zlaf061","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf061","url":null,"abstract":"Hypotrich ciliates are a highly diverse, predominantly benthic group, with a few planktonic representatives identified. This study examines two planktonic hypotrich species from China: Pelagotrichidium faurei (Tuffrau, 1972) Jankowski, 1978, and Psilotrichides hawaiiensis Heber et al., 2018, using live observation, protargol impregnation, and SSU ribosomal DNA sequencing. The Chinese population of Ps. hawaiiensis closely resembles previous reports but has more ventral cirri. This is the first detailed account of the morphology, ontogenesis, and SSU ribosomal DNA sequence of Pe. faurei. Key ontogenetic features of Pe. faurei include: (i) the proter retains the parental adoral zone, while the opisthe develops a new oral primordium; (ii) five frontoventral anlagen form five cirral rows per daughter cell; (iii) marginal cirral rows and dorsal kineties develop intrakinetally, while dorsomarginal kineties develop de novo; and (iv) macronuclear nodules fuse into a single mass before division. Morphological, ontogenetic, and phylogenetic differences distinguish Pe. faurei from the spirofilid type genus Hypotrichidium Ilowaisky, 1921. Phylogenetic analyses place Pe. faurei within the strongylidiid clade, separate from the spirofilids. Based on these findings, we propose a new family, Pelagotrichidiidae fam. nov., to accommodate the genus Pelagotrichidium Jankowski, 1978.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"11 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144520858","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 molecular phylogeny of Ceratophyllomorpha (Insecta: Siphonaptera): geographical distribution, origins, and host associations 角鼻虫亚目的分子系统发育：地理分布、起源和寄主关联

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-07-01 DOI: 10.1093/zoolinnean/zlaf042

Antonio Zurita, Conrad A Matthee

{"title":"A molecular phylogeny of Ceratophyllomorpha (Insecta: Siphonaptera): geographical distribution, origins, and host associations","authors":"Antonio Zurita, Conrad A Matthee","doi":"10.1093/zoolinnean/zlaf042","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf042","url":null,"abstract":"From a taxonomic and systematic perspective, the order Siphonaptera is a neglected and overlooked group of insects. The classification of fleas is further hampered by a few classical taxonomic keys published over 40 years ago and, in many cases, they are not digitized and thus not easily accessible. More recently, molecular data have been utilized with great success in an attempt to resolve some of the higher level taxonomic uncertainties for Siphonaptera, but detailed phylogenetic studies of fleas are still scarce. Here we conduct a comprehensive phylogenetic and evolutionary review using 148 taxa within the infraorder Ceratophyllomorpha with 4689 aligned sites derived from seven different molecular markers. Bayesian phylogenetic analyses supported the monophyly of 34/48 genera (71%), and also supported the monophyly of most members within the Leptopsyllidae, Ceratophyllidae, and Ischnopsyllidae. The dated phylogeny constructed shows that diversification within the Ceratophyllomorpha dates back to ~23.1 Mya, and from this period onwards, the evolution of the fleas included herein was influenced by both host association and host distribution. The most common hosts of the Ceratophyllomorpha group were various families of rodents, with the exception of the Ischnopsyllidae, that was specific to the order Chiroptera. The rich extant Ceratophyllomorpha diversity is mainly confined to the Palaearctic region, and this geographic pattern was most evident for the family Leptopsyllidae. The present study emphasizes the need for a comprehensive taxonomic revision for the order Siphonaptera. Since the current taxonomic schemes are mainly based on morphology, future focus should be given to those species where no molecular data are available and where molecular data are scarce.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"272 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144520856","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

Temporal and spatial variation of sexual size and shape dimorphism of Cyprideis torosa (Ostracoda) 介形目扁扁螺性别大小和形状二态性的时空变化

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-06-29 DOI: 10.1093/zoolinnean/zlaf049

Marlene Hoehle, Katharina Methner, Gene Hunt, Werner E Piller, Claudia Wrozyna

{"title":"Temporal and spatial variation of sexual size and shape dimorphism of Cyprideis torosa (Ostracoda)","authors":"Marlene Hoehle, Katharina Methner, Gene Hunt, Werner E Piller, Claudia Wrozyna","doi":"10.1093/zoolinnean/zlaf049","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf049","url":null,"abstract":"Sexual differences in the size and shape of males and females are widespread in the animal kingdom, but research on sexual dimorphism in ostracods has been limited. From 718 individual ostracod valves of the species Cyprideis torosa, we extracted size (length and height) and valve width (from focus-stacked photographs), and we used geometric morphometrics to analyse the shape of valve outlines. Variability of C. torosa was investigated on different geographical (Baltic Sea, Central Germany, and Mediterranean area) and geological (Holocene to living) scales. We found that sexual differences were greater in shape than in size and that populations on our geographical scale showed a differentiation in size. Dimorphism in width was investigated in detail for the first time for ostracods and showed strongest dimorphism within the size traits. The examination of the relationship between size and shape revealed sex-specific, regional, and temporal patterns. All size traits of C. torosa showed allometry consistent with Rensch’s rule. Isolation of the Mansfeld Lakes populations from marginal marine environments might have contributed to morphological differentiation as expression of possible speciation. We suggest that morphological variability in C. torosa results from a combination of sex-specific and scale-dependent geographical phenotypic plasticity and regional sexual and fecundity selection pressures on the sexes.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"74 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144516137","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

Craniodental anatomy of Late Ruscinian Trischizolagus (Leporidae: Lagomorpha) from Megalo Emvolon (Thessaloniki, Greece) 希腊塞萨洛尼基Megalo Emvolon地区晚俄罗斯Trischizolagus （Leporidae: Lagomorpha）的颅齿解剖

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-06-29 DOI: 10.1093/zoolinnean/zlaf067

Christina N Kalaitzi, Dimitris S Kostopoulos

{"title":"Craniodental anatomy of Late Ruscinian Trischizolagus (Leporidae: Lagomorpha) from Megalo Emvolon (Thessaloniki, Greece)","authors":"Christina N Kalaitzi, Dimitris S Kostopoulos","doi":"10.1093/zoolinnean/zlaf067","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf067","url":null,"abstract":"During the Early Ruscinian, the leporid genus Trischizolagus (Leporidae: Mammalia) underwent a significant dispersion and increase in diversity, expanding from the peri-Paratethyan region to China, Spain, and Morocco. Its fossil record remains, however, poor, primarily comprising of isolated teeth, toothrows, and mandibles, while cranial material is extremely rare and often too fragmentary. The present paper presents a well-preserved and rich sample of Trischizolagus from the Megalo Emvolon-4 (MVL) fossil site near Thessaloniki (Greece) and provides for the first time the full cranial anatomy of T. dumitrescuae, the most common species known from the Late Ruscinian of SE Europe. The results allow an assessment of its intraspecific variation, while comprehensive craniodental comparisons fix some previous morphological misconceptions and provide additional distinctive cranial features with both extinct and extant Old World leporid taxa. Although a phylogenetic analysis failed to resolve the relationships of the genus, a review of its chronospatial distribution based on earlier hypotheses and new data confirms its debatable north Mediterranean Mio-Pliocene record and favors an origin closer to a dentally advanced Hypolagus population.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"7 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513140","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

Deciphering Arctic sponge diversity: genetic and morphological evidence reveals cryptic lineages in Suberites 破译北极海绵的多样性：遗传和形态学证据揭示了亚亚种的神秘谱系

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-06-29 DOI: 10.1093/zoolinnean/zlaf052

Grigori Morozov, Alexander Ereskovsky, Natalia Strelkova

{"title":"Deciphering Arctic sponge diversity: genetic and morphological evidence reveals cryptic lineages in Suberites","authors":"Grigori Morozov, Alexander Ereskovsky, Natalia Strelkova","doi":"10.1093/zoolinnean/zlaf052","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf052","url":null,"abstract":"Suberites luetkenii Schmidt, 1870 is a polymorphic Arctic species with several distinct morphotypes, suggesting that it might represent a species complex. The aim of the present work was to verify, using an integrative approach, whether these morphs are conspecific or represent cryptic species. Using COI mitochondrial and 28S nuclear loci, two phylogenies of the family Suberitidae were constructed that were congruent with each other. We retrieved two highly supported sister clades: the Suberites s.s. clade I, which includes suberitid species from the North Atlantic and North Pacific boreal regions associated with the hermit crab, and the arctic clade. New findings of Suberites pagurorum Solé-Cava & Thorpe, 1986 from the Norwegian Sea represent the northernmost records of the species, marking the northern limit of the boreal Suberites s.s. clade I at the Atlantic–Arctic biogeographical border. Along the Scandinavian coasts, members of both clades are sympatric, while further to the north, arctic counterparts predominate. Our analysis shows that the arctic clade defined in this study is more closely related to North Pacific species and shares a single evolutionary origin with them.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"18 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144516021","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

Taxonomy, nomenclature, and identification of the giant hummingbirds (Patagona spp.) (Aves: Trochilidae) 巨型蜂鸟的分类、命名及鉴定（鸟目：蜂鸟科）

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-06-28 DOI: 10.1093/zoolinnean/zlaf036

Jessie L Williamson, Chauncey R Gadek, Bryce W Robinson, Emil Bautista, Selina M Bauernfeind, Matthew J Baumann, Ethan F Gyllenhaal, Peter P Marra, Natalia Ricote, Nadia D Singh, Thomas Valqui, Christopher C Witt

{"title":"Taxonomy, nomenclature, and identification of the giant hummingbirds (Patagona spp.) (Aves: Trochilidae)","authors":"Jessie L Williamson, Chauncey R Gadek, Bryce W Robinson, Emil Bautista, Selina M Bauernfeind, Matthew J Baumann, Ethan F Gyllenhaal, Peter P Marra, Natalia Ricote, Nadia D Singh, Thomas Valqui, Christopher C Witt","doi":"10.1093/zoolinnean/zlaf036","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf036","url":null,"abstract":"Giant hummingbirds (Patagona spp.) are extraordinarily large hummingbirds whose taxonomy has been muddled for two centuries. Patagona systematics were recently redefined in a study of migration, physiology, and genomics, revealing two species: the Northern Giant Hummingbird and Southern Giant Hummingbird. Here, we re-evaluate taxonomy and nomenclature of the genus in light of its newly clarified biology and species limits, analysing data from 608 specimens and wild-caught individuals spanning 1864–2023. The forms gigas and peruviana were both described based on multiple syntypes. The possible syntypes for Patagona gigas are dubious, so we designate a neotype for this taxon. The genetic identity of the peruviana lectotype remains untested, but its plumage appears to match the northern species. We critically considered the identity and usage of gigas and peruviana, respectively, and examined identification challenges that fostered taxonomic uncertainty. We endorse the name Patagona gigas for the Southern Giant Hummingbird and Patagona peruviana for the Northern Giant Hummingbird. We found that ~33% of specimens (74 of 226) in major museum collections that are labeled peruviana are actually misidentified gigas and we include this full list to correct the historical record. Finally, to facilitate identification and future study of these two cryptic species, we provide comprehensive information on plumage, measurements, and seasonal ranges.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"22 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144503363","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

Using computed tomography scanning in exceptionally preserved Lower Cretaceous ostracods from Brazil to reassess the evolutionary history of Paracyprididae (Podocopida: Cypridocopina) 利用计算机断层扫描对保存完好的巴西下白垩世介形虫进行重新评估

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-06-28 DOI: 10.1093/zoolinnean/zlaf050

Lucas S Antonietto, C Giles Miller, Borja Holgado, Tayslane dos S Gonçalves, Brett Clark

{"title":"Using computed tomography scanning in exceptionally preserved Lower Cretaceous ostracods from Brazil to reassess the evolutionary history of Paracyprididae (Podocopida: Cypridocopina)","authors":"Lucas S Antonietto, C Giles Miller, Borja Holgado, Tayslane dos S Gonçalves, Brett Clark","doi":"10.1093/zoolinnean/zlaf050","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf050","url":null,"abstract":"Calcareous concretions typical of the Lower Cretaceous Romualdo Formation (late Aptian–Albian of the Santana Group), in the northeastern Brazilian Araripe Basin, occasionally yield exceptionally preserved ostracods with pristine soft parts. These rare specimens allow in-depth studies of ostracod taxonomy and systematics. This is particularly important when dealing with the classification of groups where carapace ornamentation is less common, such as the cypridocopines that have been abundant in continental and transitional environments since Late Jurassic times. Damonella grandiensis is a commonly occurring species in the Romualdo Formation that has long caused taxonomic and systematic arguments due to its mostly featureless carapace—the reason it has been known previously as ‘Ostracode n.º 207’. New detailed CT scans of Damonella grandiensis specimens, coupled with scanning electron microscopy and improved stereoscopic micrographs of additional specimens, allow a review of the species, including first descriptions of their caudal rami and paired sperm pumps (Zenker organs). These indicate not only that Damonella grandiensis must be placed within the genus Reconcavona (as Reconcavona grandiensis comb. nov.), but also that this genus is not representative of the Candonidae, but instead of the Paracyprididae—which impacts on the early evolutionary history of paracypridids.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"643 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144503500","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

Insight into the diversity and phylogeny of the ciliate family Lynchellidae (Alveolata: Ciliophora), with the establishment of a new genus and two new species 揭示了纤毛虫科Lynchellidae （Alveolata: Ciliophora）的多样性和系统发育，建立了一个新属和两个新种

IF 2.8 2区生物学

Zoological Journal of the Linnean Society Pub Date : 2025-06-25 DOI: 10.1093/zoolinnean/zlaf010

Congcong Wang, Limin Jiang, Hongbo Pan, Alan Warren, Xiaozhong Hu

{"title":"Insight into the diversity and phylogeny of the ciliate family Lynchellidae (Alveolata: Ciliophora), with the establishment of a new genus and two new species","authors":"Congcong Wang, Limin Jiang, Hongbo Pan, Alan Warren, Xiaozhong Hu","doi":"10.1093/zoolinnean/zlaf010","DOIUrl":"https://doi.org/10.1093/zoolinnean/zlaf010","url":null,"abstract":"Two unusual algivorous ciliates, Paracoeloperix composita gen. nov., sp. nov. and Chlamydonella wangi sp. nov., were collected from marine habitats in China. Their morphology and molecular phylogeny were investigated using microscopical and ribosomal gene sequencing techniques. Paracoeloperix gen. nov. can be distinguished from its most closely related genus, Coeloperix, by its distinct trilinear oral ciliature and its small subunit ribosomal ribonucleic acid (SSU rRNA) gene sequence divergence. Paracoeloperix composita gen. nov., sp. nov. is characterized by having trilinear perioral kineties, a complete cross-striated band, finger-like tentacles on the ventral side, and anterior and left terminal fragments. Chlamydonella wangi sp. nov. differs from its congeners by having a reniform body, four or five contractile vacuoles, 17–19 somatic kineties, and 2.6%–8.3% SSU rDNA sequence dissimilarity. The systematic placements of the family Lynchellidae and the genus Paracoeloperix gen. nov. remain elusive owing to their low support values in phylogenetic trees and the unstable topology of these trees. Furthermore, the present study rejects the monophyly of the genus Chlamydonella because Chlamydonella wangi sp. nov. is closely related to Chlamydonellopsis calkinsi. Additionally, an illustrated identification key of Lynchellidae genera and a conjecture based on mapping between morphological features and the SSU rDNA tree are provided.","PeriodicalId":49333,"journal":{"name":"Zoological Journal of the Linnean Society","volume":"45 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144479242","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