Intraspecific Morphometric Variation in a New Species of <i>Ceratomyxa</i> Thélohan 1892 (Cnidaria) from the South Atlantic Ocean: An Ecomorphological Study Using Geometric Morphometrics
A new species of <i>Ceratomyxa</i> (Ceratomyxidae, Myxosporea) was found infecting the gall bladder of the Argentine croaker <i>Umbrina canosai</i> Berg 1895 (Sciaenidae, Perciformes) from the Argentine sea. Using an integrative taxonomic approach that combines morphological,...
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2025-01-01
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| author | Delfina M. P. Cantatore Martina Lisnerová Paula S. Marcotegui María A. Rossin Astrid S. Holzer |
| author_facet | Delfina M. P. Cantatore Martina Lisnerová Paula S. Marcotegui María A. Rossin Astrid S. Holzer |
| author_sort | Delfina M. P. Cantatore |
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| description | A new species of <i>Ceratomyxa</i> (Ceratomyxidae, Myxosporea) was found infecting the gall bladder of the Argentine croaker <i>Umbrina canosai</i> Berg 1895 (Sciaenidae, Perciformes) from the Argentine sea. Using an integrative taxonomic approach that combines morphological, bioecological, and molecular analyses, we provide evidence that clearly differentiates this species from known taxa and formally describe <i>Ceratomyxa fialai</i> as a new species. This study is the first to apply landmark-based geometric morphometrics (GM) in myxozoan research, providing a detailed analysis of conspecific morphometric variation of ceratomyxid myxospores, examining their natural variation within and among different ceratomyxids infecting the gall bladder of <i>U. canosai</i>. Using GM analyses, we successfully capture and quantify phenotypic variation at the organismal level. Our results suggest that myxospore shape variation may be driven by both developmental noise and phenotypic plasticity. The work highlights the utility of GM in advancing the understanding of myxozoan morphology and its evolutionary implications and emphasizes the need for further research on myxospore shape evolution and its ecological and adaptive significance in natural populations. |
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| institution | Kabale University |
| issn | 2079-7737 |
| language | English |
| publishDate | 2025-01-01 |
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| spelling | doaj-art-144e739dc3c24dfb8b9297b07634120f2025-01-24T13:23:33ZengMDPI AGBiology2079-77372025-01-011417910.3390/biology14010079Intraspecific Morphometric Variation in a New Species of <i>Ceratomyxa</i> Thélohan 1892 (Cnidaria) from the South Atlantic Ocean: An Ecomorphological Study Using Geometric MorphometricsDelfina M. P. Cantatore0Martina Lisnerová1Paula S. Marcotegui2María A. Rossin3Astrid S. Holzer4Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, Mar del Plata 7600, Buenos Aires, ArgentinaInstitute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 37005 České Budějovice, Czech RepublicLaboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, Mar del Plata 7600, Buenos Aires, ArgentinaLaboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales (FCEyN), Universidad Nacional de Mar del Plata (UNMdP)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, Mar del Plata 7600, Buenos Aires, ArgentinaFish Health Division, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, AustriaA new species of <i>Ceratomyxa</i> (Ceratomyxidae, Myxosporea) was found infecting the gall bladder of the Argentine croaker <i>Umbrina canosai</i> Berg 1895 (Sciaenidae, Perciformes) from the Argentine sea. Using an integrative taxonomic approach that combines morphological, bioecological, and molecular analyses, we provide evidence that clearly differentiates this species from known taxa and formally describe <i>Ceratomyxa fialai</i> as a new species. This study is the first to apply landmark-based geometric morphometrics (GM) in myxozoan research, providing a detailed analysis of conspecific morphometric variation of ceratomyxid myxospores, examining their natural variation within and among different ceratomyxids infecting the gall bladder of <i>U. canosai</i>. Using GM analyses, we successfully capture and quantify phenotypic variation at the organismal level. Our results suggest that myxospore shape variation may be driven by both developmental noise and phenotypic plasticity. The work highlights the utility of GM in advancing the understanding of myxozoan morphology and its evolutionary implications and emphasizes the need for further research on myxospore shape evolution and its ecological and adaptive significance in natural populations.https://www.mdpi.com/2079-7737/14/1/79<i>Ceratomyxa fialai</i> n. sp.myxospore shape variationMyxozoaArgentina |
| spellingShingle | Delfina M. P. Cantatore Martina Lisnerová Paula S. Marcotegui María A. Rossin Astrid S. Holzer Intraspecific Morphometric Variation in a New Species of <i>Ceratomyxa</i> Thélohan 1892 (Cnidaria) from the South Atlantic Ocean: An Ecomorphological Study Using Geometric Morphometrics Biology <i>Ceratomyxa fialai</i> n. sp. myxospore shape variation Myxozoa Argentina |
| title | Intraspecific Morphometric Variation in a New Species of <i>Ceratomyxa</i> Thélohan 1892 (Cnidaria) from the South Atlantic Ocean: An Ecomorphological Study Using Geometric Morphometrics |
| title_full | Intraspecific Morphometric Variation in a New Species of <i>Ceratomyxa</i> Thélohan 1892 (Cnidaria) from the South Atlantic Ocean: An Ecomorphological Study Using Geometric Morphometrics |
| title_fullStr | Intraspecific Morphometric Variation in a New Species of <i>Ceratomyxa</i> Thélohan 1892 (Cnidaria) from the South Atlantic Ocean: An Ecomorphological Study Using Geometric Morphometrics |
| title_full_unstemmed | Intraspecific Morphometric Variation in a New Species of <i>Ceratomyxa</i> Thélohan 1892 (Cnidaria) from the South Atlantic Ocean: An Ecomorphological Study Using Geometric Morphometrics |
| title_short | Intraspecific Morphometric Variation in a New Species of <i>Ceratomyxa</i> Thélohan 1892 (Cnidaria) from the South Atlantic Ocean: An Ecomorphological Study Using Geometric Morphometrics |
| title_sort | intraspecific morphometric variation in a new species of i ceratomyxa i thelohan 1892 cnidaria from the south atlantic ocean an ecomorphological study using geometric morphometrics |
| topic | <i>Ceratomyxa fialai</i> n. sp. myxospore shape variation Myxozoa Argentina |
| url | https://www.mdpi.com/2079-7737/14/1/79 |
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