Zoologischer Anzeiger最新文献_第4页

Integrative taxonomy revealing microendemic species of Cambeva (Siluriformes: Trichomycteridae) in streams draining Serra da Canastra, southeastern Brazil 巴西东南部Canastra山区溪流中Cambeva微特有种的综合分类研究（志留虫目：毛虫科）

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-07-03 DOI: 10.1016/j.jcz.2025.07.003

Wilson J.E.M. Costa , Valter M. Azevedo-Santos , José Leonardo O. Mattos , Pedro L.C. Uzeda , Paulo J. Vilardo , Felipe P. Ottoni , Axel M. Katz

{"title":"Integrative taxonomy revealing microendemic species of Cambeva (Siluriformes: Trichomycteridae) in streams draining Serra da Canastra, southeastern Brazil","authors":"Wilson J.E.M. Costa , Valter M. Azevedo-Santos , José Leonardo O. Mattos , Pedro L.C. Uzeda , Paulo J. Vilardo , Felipe P. Ottoni , Axel M. Katz","doi":"10.1016/j.jcz.2025.07.003","DOIUrl":"10.1016/j.jcz.2025.07.003","url":null,"abstract":"<div><div>A large concentration of endemic trichomycterine catfish species has been recorded in mountainous regions of southeastern Brazil. The present study aims to investigate the taxonomic status of populations of the <em>Cambeva variegata</em> complex (CVC) in streams situated in a narrow strip between the Serra da Canastra and the right bank of the Rio Grande. Here we combined results of unilocus species delimitation analyses (GMYC, PTP, ASAP using CYTB, 1025 bp) with morphological data (external morphology and osteology). All analyses yielded identical results, delimiting four new species in the study area. The resulting tree topology indicated that the species from the study area do not form a monophyletic group. The new species were diagnostic by combinations of morphological characteristics, as well as unique nucleotide substitutions, besides occasionally, when possible, by unique morphological character states. The occurrence of four short-ranged species in neighbouring areas indicates a case of micro-endemism, which is of great importance for biodiversity conservation, since micro-endemic species are often more susceptible to extinction and at least three of these species occur in environments with clear signs of habitat degradation. Further studies are needed to precisely determine conditions and geographical extent of their habitats.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"318 ","pages":"Pages 1-15"},"PeriodicalIF":1.2,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144562864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Milnesium (Tardigrada: Apochela) having elongated buccal tube from Mt. Yukikuradake (Toyama and Niigata prefecture, Japan) 产自日本富山和新泻县的有细长颊管的千禧年虫（缓步目：背肢目）

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-07-01 DOI: 10.1016/j.jcz.2025.06.004

Kenta Sugiura , Atsushi C. Suzuki

{"title":"Milnesium (Tardigrada: Apochela) having elongated buccal tube from Mt. Yukikuradake (Toyama and Niigata prefecture, Japan)","authors":"Kenta Sugiura , Atsushi C. Suzuki","doi":"10.1016/j.jcz.2025.06.004","DOIUrl":"10.1016/j.jcz.2025.06.004","url":null,"abstract":"<div><div>The order Apochela (Tardigrada: Eutardigrada) includes <em>Milnesium</em> and three monospecific genera <em>Limmenius</em>, <em>Milnesioides</em>, and <em>Bergtrollus</em>. These three genera have elongated buccal tubes and are found from limited areas in the world: Australia, New Zealand, and the Lyngen Alps in Norway, respectively. The existence of such milnesiids having elongated buccal tube in Japan was once reported at a conference but it has not been described further.</div><div>We found the undescribed species again in summer 2023. From a moss sample on the summit of Mt. Yukikuradake, we obtained milnesiid specimens having a narrow, elongated buccal tube. Although the morphological data corresponded to the genus <em>Bergtrollus</em>, molecular phylogeny clearly indicated that the species belonged to the genus <em>Milnesium</em>; therefore, we describe it as <em>Milnesium utsugii</em> <strong>sp. nov.</strong> Molecular phylogenetic analysis also showed that <em>Milnesioides</em> spp. and <em>M. utsugii</em> <strong>sp. nov.</strong> were clearly delimited, suggesting that the elongated-mouth evolved at least two times in the family Milnesiidae. Hatchlings of the new species had higher buccal tube width/length ratio compared to the adults, indicating a developmental change to a longer and narrower shape.</div><div>This is the fourth species of the genus <em>Milnesium</em> in Japan. Interestingly, the moss sample at the type locality of the new species housed another undescribed <em>Milnesium</em> which was placed within a clade with an undescribed Norwegian species, implying a relationship in zoogeographic histories between <em>M. utsugii</em> <strong>sp. nov.</strong>, <em>Bergtrollus</em>, and the undescribed <em>Milnesium</em>.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 165-175"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Comparative histological analysis of the pallial eyes of Zygochlamys patagonica and Argopecten purpuratus, two scallop species from the southeastern Pacific 东南太平洋两种扇贝（Zygochlamys patagonica和Argopecten purpuratus）苍白眼的比较组织学分析

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-07-01 DOI: 10.1016/j.jcz.2025.06.005

Alejandra Díaz-Valdivia , Pablo Herrera , Doris Oliva , Oliver Schmachtenberg

{"title":"Comparative histological analysis of the pallial eyes of Zygochlamys patagonica and Argopecten purpuratus, two scallop species from the southeastern Pacific","authors":"Alejandra Díaz-Valdivia , Pablo Herrera , Doris Oliva , Oliver Schmachtenberg","doi":"10.1016/j.jcz.2025.06.005","DOIUrl":"10.1016/j.jcz.2025.06.005","url":null,"abstract":"<div><div>The visual system of the Pectinidae family of bivalve mollusks is exceptional because of the number and complexity of their eyes. The non-cephalic eyes of pectinids consist of a cornea, a lens, a double retina, a pigment epithelium, and a concave mirror. While prior studies have addressed the anatomy and putative functions of pectinid eyes, the cellular components and their adaptations to different habitats have been explored in only a few scallop species. The Northern scallop <em>Argopecten purpuratus</em> and the Patagonian scallop <em>Zygochlamys patagonica</em> are important hydrobiological resources which inhabit different latitudes in the southeastern Pacific (5°S to 33°S and 40° to 48°S, respectively). The present study characterized and compared the components of the pallial eyes of the two species with light, confocal and electron microscopy, to improve our understanding of the sensory adaptations to their different habitats. While most cellular elements, including the ciliary and rhabdomeric photoreceptors, are morphologically similar and ostensibly conserved, some structures such as the cornea and the lens display significant differences between <em>A. purpuratus</em> and <em>Z. patagonica</em>. Overall, the cellular complexity and structural sophistication of pectinid eyes highlight the critical role of vision in scallop ecology and behavior.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 155-164"},"PeriodicalIF":1.2,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Overview of morphology and neuromuscular system of coronate polyps on the example of Linuche sp. (Scyphozoa, Coronatae) 冠状息肉形态及神经肌肉系统的研究——以冠状动物Linuche sp.为例

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-06-23 DOI: 10.1016/j.jcz.2025.06.003

Irina Salova , Maria Domracheva , Ekaterina Nefedova , Valeriia Khabibulina

{"title":"Overview of morphology and neuromuscular system of coronate polyps on the example of Linuche sp. (Scyphozoa, Coronatae)","authors":"Irina Salova , Maria Domracheva , Ekaterina Nefedova , Valeriia Khabibulina","doi":"10.1016/j.jcz.2025.06.003","DOIUrl":"10.1016/j.jcz.2025.06.003","url":null,"abstract":"<div><div>Jellyfish from the class Scyphozoa have been the subject of numerous studies due to their blooms and impacts on the economy. The polypoid stage plays a main role in the occurrence of blooms, as it forms young medusae during strobilation. Ecological aspects that affect the strobilation has been well studied over the years, while morphological data on polypoid stage is available mainly for model species, such as members of genera <em>Aurelia</em> and <em>Cassiopea</em>. One of the less studied polyps are from the order Coronatae – the basal group of Scyphozoa. In this work, we focused on the morphology of the <em>Linuche</em> sp. coronate polyp.</div><div>For the first time, we describe the histological features and general topology of the neuromuscular system of <em>Linuche</em> sp. polyps using confocal laser scanning microscopy and semi-thin sections, also we provide information on the structure of its periderm tube and cusps – important taxonomic characters of coronate polyps – with usage of scanning electron microscopy. Its nervous system is presented as a nerve net in the body column with longitudinal neuron groups accompanying the muscle bands, and two nerve rings in the capitulum, acting as integrative centers. The muscular system in <em>Linuche</em> sp. has a complex organization with numerous groups of muscular processes in the capitulum that are intertwined with the musculature of the body column and tentacles. Comparison of the organization of polyps from Coronatae and Discomedusae revealed significant differences in their anatomy, due to the presence of the periderm tube in coronates.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 139-154"},"PeriodicalIF":1.2,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Morphogenesis and chemical composition of spicules in Doridina (Gastropoda: Nudibranchia) 腹足目：裸鳃鱼针状体的形态发生及化学组成

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-06-18 DOI: 10.1016/j.jcz.2025.06.001

Ekaterina D. Nikitenko , Anna L. Mikhlina , Alexey A. Piryazev , Elena V. Vortsepneva

{"title":"Morphogenesis and chemical composition of spicules in Doridina (Gastropoda: Nudibranchia)","authors":"Ekaterina D. Nikitenko , Anna L. Mikhlina , Alexey A. Piryazev , Elena V. Vortsepneva","doi":"10.1016/j.jcz.2025.06.001","DOIUrl":"10.1016/j.jcz.2025.06.001","url":null,"abstract":"<div><div>Among molluscs, hard skeletal elements are widespread. These structures are typically external and synthesized extracellularly, as seen in Polyplacophora, Caudofoveata, and Solenogastres. However, certain heterobranch gastropods—such as Nudibranchia, Acochlidimorpha, Rhodopemorpha—have subepidermal spicules that are synthesized intracellularly and remain within cells throughout ontogeny. Here, we present new data on the morphology and formation of such spicules in four nudibranch species from three families: <em>Acanthodoris pilosa</em> (Abildgaard in Müller, 1789), <em>Adalaria proxima</em> (Alder and Hancock, 1854) (both Onchidorididae), <em>Cadlina laevis</em> (Linnaeus, 1767) (Cadlinidae), and <em>Palio dubia</em> (M. Sars, 1829) (Polyceridae). Using a combination of morphological methods and experimental techniques—including micro-computed tomography, light and confocal laser scanning microscopy, and scanning and transmission electron microscopy—we identified common patterns of spicule maturation and biomineralization, which affect spicules’ internal structure, and delineated their growth zones. Raman spectroscopy further revealed variability in the mineral composition of spicules across different dorid groups.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 73-90"},"PeriodicalIF":1.2,"publicationDate":"2025-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144320786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Less than expected: species diversity of the Ctenomys mendocinus species group (Rodentia, Ctenomyidae) in north–central Argentina 低于预期：阿根廷中北部毛线蛛物种群（啮齿目，毛线蛛科）的物种多样性

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-06-17 DOI: 10.1016/j.jcz.2025.06.002

Carolina Jankowicz , Pablo Teta , M. Jimena Gomez Fernandez , Fernando J. Mapelli

{"title":"Less than expected: species diversity of the Ctenomys mendocinus species group (Rodentia, Ctenomyidae) in north–central Argentina","authors":"Carolina Jankowicz , Pablo Teta , M. Jimena Gomez Fernandez , Fernando J. Mapelli","doi":"10.1016/j.jcz.2025.06.002","DOIUrl":"10.1016/j.jcz.2025.06.002","url":null,"abstract":"<div><div>The genus <em>Ctenomys</em> is one of the most species-rich genera among mammals. The taxonomy of its species is under constant revision as new data and analytical tools become available. Integrative approaches provide a valuable framework for incorporating morphological, genetic, and biogeographic criteria, helping to clarify ambiguous species boundaries. This study uses an integrative approach to evaluate the phylogenetic relationships among some nominal forms of the Mendocinus group of the genus <em>Ctenomys</em>, distributed in north–central Argentina: <em>Ctenomys bergi</em>, <em>Ctenomys bonettoi</em>, <em>Ctenomys rionegrensis</em> and <em>C. “</em>y<em>olandae”</em>. From a morphological perspective, craniodental measurements were compared using descriptive statistics and multivariate statistical analyses. From a genetic perspective, Bayesian and Maximum Likelihood phylogenetic trees were reconstructed using complete sequences of the mitochondrial cytochrome <em>b</em> gene. Our results showed that both <em>C. bonettoi</em> and <em>C. “</em>y<em>olandae”</em> are genetically and morphologically indistinguishable from <em>C. bergi</em> and should therefore be synonymized with the latter. Additionally, it was found that the genetic and morphological divergence between <em>C. rionegrensis</em> and <em>C. bergi</em> is considerably low; even below the interspecific values for the Mendocinus group. The genetic divergence between the two species could be related to the Paraná River, the second largest river in South America. The results of this study may have a significant impact on the conservation status assessment of the taxa under study, as they considerably expand the distribution range of the synonymized species.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 130-138"},"PeriodicalIF":1.2,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144502278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 saucerful of secrets: comparative osteology of the genus Copeoglossum Tschudi, 1845 (Squamata: Scincidae) reveals a new species from Central Brazil 一碟秘密：1845年Copeoglossum Tschudi属的比较骨学（鳞片目：鳞片科）揭示了来自巴西中部的一个新种

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-06-16 DOI: 10.1016/j.jcz.2025.05.008

Julio C. Ferreira-Junior , Davor Vrcibradic , Vinícius Sudré , Paulo Passos

{"title":"A saucerful of secrets: comparative osteology of the genus Copeoglossum Tschudi, 1845 (Squamata: Scincidae) reveals a new species from Central Brazil","authors":"Julio C. Ferreira-Junior , Davor Vrcibradic , Vinícius Sudré , Paulo Passos","doi":"10.1016/j.jcz.2025.05.008","DOIUrl":"10.1016/j.jcz.2025.05.008","url":null,"abstract":"<div><div>The genus <em>Copeoglossum</em> is widely distributed throughout much of the Amazon basin and other regions of central, northern, and eastern South America, including Brazil, Bolivia, Colombia, Ecuador, Peru, Venezuela, Guyana, French Guiana, and Suriname. It also occurs in the Lesser Antilles (Redonda, St. Vincent, the Grenadines, Grenada, Trinidad and Tobago). Despite the recent increase in molecular and taxonomic studies on Neotropical skinks, populations of <em>Copeoglossum</em> in northern and eastern South America remain understudied. Here, we examined 380 specimens from 64 localities, representing all currently recognized taxa of the genus <em>Copeoglossum</em>. Specimen preparation included dry skull, clearing and staining, X-ray, and high-resolution computed tomography (μCT). This study provides a detailed anatomical reference for the adult skull of species in the genus <em>Copeoglossum</em>, emphasizing osteological features that may aid in delineating robust species boundaries. Our findings support the recognition of a distinct lineage that does not currently have a formal name (though it has been previously identified in other studies), which we describe herein as a new species based on both cranial osteology and external morphology, as well as molecular evidence. This newly recognized species appears to be endemic to the Cerrado ecoregion, also occurring in transitional areas of Brazil's central-western region.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 91-115"},"PeriodicalIF":1.2,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144338866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Corrigendum to “Quantitative evaluation of spatial biometric parameters affecting body shape variation among three freshwater fish species” [Zool. Anz. 315 (2025) 75–88] “影响三种淡水鱼体型变化的空间生物特征参数的定量评估”[Zool]的勘误表。Anz. 315 (2025) 75-88]

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-06-04 DOI: 10.1016/j.jcz.2025.03.003

Mohd Sadiq, Lubna Yasmeen, Insha Hassan, Mohammad Afzal Khan

引用次数: 0

Description of a new species of Paraturbanella, new record of Paraturbanella tricaudata and new insights on reproductive traits in Turbanellidae (Gastrotricha:Macrodasyida) 拟蝶属一新种描述、三尾拟蝶属新记录及拟蝶科生殖性状新认识（腹虫目：大腹虫目）

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-05-30 DOI: 10.1016/j.jcz.2025.05.010

Ariane Campos , Thiago Quintão Araújo , M. Antonio Todaro , André Rinaldo Senna Garraffoni

{"title":"Description of a new species of Paraturbanella, new record of Paraturbanella tricaudata and new insights on reproductive traits in Turbanellidae (Gastrotricha:Macrodasyida)","authors":"Ariane Campos , Thiago Quintão Araújo , M. Antonio Todaro , André Rinaldo Senna Garraffoni","doi":"10.1016/j.jcz.2025.05.010","DOIUrl":"10.1016/j.jcz.2025.05.010","url":null,"abstract":"<div><div>The intertidal zone of a sandy beach in Bahia State, Brazil, yielded a new species that we describe herein based on three distinct microscopy techniques (light, scanning electronic, and confocal), as well as on nuclear and mitochondrial molecular data (18S rDNA, 28S rDNA, and COI mtDNA). Specimens of <em>Paraturbanella anastaciae</em> species nova (sp. nov.) bear piston pits, a single caudal cone, and lateral and posterior adhesive tubes arranged in clusters; moreover, the layout of its male reproductive system appears unique. A comparative table with data on the reproductive traits of <em>Paraturbanella</em> species known to date was produced to aid future research. Additionally, we report <em>Paraturbanella tricaudata</em> Campos, Todaro and Garraffoni, 2020 from the state of São Paulo, outside its type locality in Rio de Janeiro State. A multigene approach was used to develop a molecular phylogeny of the family Turbanellidae, which found the genera <em>Turbanella</em> and <em>Paraturbanella</em> to be monophyletic and <em>P</em>. <em>anastaciae</em> sp. nov. clearly distinct from other congeners. Although this is the second species of <em>Paraturbanella</em> described from Brazil, evidence indicate that the knowledge of Neotropical turbanellids biodiversity still needs to be completed.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 46-59"},"PeriodicalIF":1.2,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144270404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Addressing the phenotypic plasticity in Boleophthalmus boddarti (Pallas, 1770) from Sundarbans of West Bengal using integrative taxonomy 利用综合分类学研究西孟加拉邦孙德尔本斯Boleophthalmus boddarti （Pallas, 1770）的表型可塑性

IF 1.2 3区生物学

Zoologischer Anzeiger Pub Date : 2025-05-29 DOI: 10.1016/j.jcz.2025.05.009

Ankita Vishwakarma , T.S. Nagesh , Mahender Singh , T.J. Abraham , U.K. Sarkar , Golam Ziauddin

{"title":"Addressing the phenotypic plasticity in Boleophthalmus boddarti (Pallas, 1770) from Sundarbans of West Bengal using integrative taxonomy","authors":"Ankita Vishwakarma , T.S. Nagesh , Mahender Singh , T.J. Abraham , U.K. Sarkar , Golam Ziauddin","doi":"10.1016/j.jcz.2025.05.009","DOIUrl":"10.1016/j.jcz.2025.05.009","url":null,"abstract":"<div><div>Mudskippers are considered as borderline organisms whose systematics are debatable because of plasticity in their morphological classification. Hence, their biology, systematics and evolutionary studies have attracted several researchers nowadays. The present work sorts to characterize the Boddart's goggle-eyed goby <em>Boleophthalmus boddarti</em> sampled from Sundarbans of West Bengal from May 2023 to February 2024, employing an integrative taxonomy approach using morphometry and two molecular genes: cytochrome <em>c</em> oxidase subunit (COI) and ribosomal RNA (16S). Fourteen morphometric parameters were measured for 102 specimens and the data were subjected to univariate ANOVA and principal component analysis. The standard deviation ranged from low i.e., 0.11 to 0.40 for eight parameters, medium 0.46 to 0.70 for four parameters and high 1.70 to 1.95 for two parameters. Low and medium standard deviations in parameters indicated the low variability among data clustering more are around the mean closely. Principal component analysis determined those two components, PC1 and PC2, accounted for 78.41 % of the observed variation. Positive correlation seen in plots 1 and 2 between standard length, total length, second dorsal fin length, anal fin length, head length, pre-dorsal length, head depth, first dorsal fin length and body depth. A molecular marker used for the reconstruction of the phylogenetic trees revealed that species followed monophyletic clade in concordance with the specimens of Bangladesh. Interspecific genetic distance ranged from 0.121 to 0.170 while intraspecific distance ranged from 0.002 to 0.016 for COI and for 16S interspecific genetic distances varied from 0.147 to 0.597 while intraspecific ranged from 0.000 to 0.004. The result showed all specimens belong to one species and no speciation seen among populations of three zones of Sundarbans.</div></div>","PeriodicalId":49332,"journal":{"name":"Zoologischer Anzeiger","volume":"317 ","pages":"Pages 60-72"},"PeriodicalIF":1.2,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144280972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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