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Spinal malformations in a naturally isolated Neotropical fish population

Fish populations that reside in completely isolated freshwater ecosystems are rare worldwide. The Vila Velha State Park (VVSP), located in southern Brazil, is recognized for its arenitic formations called sinkholes (furnas), which are completely isolated. Fish populations within, such as those of Ps...

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Autores principales: Kerniske, Franciele Fernanda, Pena Castro, Jonathan, De la Ossa-Guerra, Luz Elena, Mayer, Bruna Angelina, Abilhoa, Vinícius, de Paiva Affonso, Igor, Ferreira Artoni, Roberto
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8541325/
https://www.ncbi.nlm.nih.gov/pubmed/34721968
http://dx.doi.org/10.7717/peerj.12239
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author Kerniske, Franciele Fernanda
Pena Castro, Jonathan
De la Ossa-Guerra, Luz Elena
Mayer, Bruna Angelina
Abilhoa, Vinícius
de Paiva Affonso, Igor
Ferreira Artoni, Roberto
author_facet Kerniske, Franciele Fernanda
Pena Castro, Jonathan
De la Ossa-Guerra, Luz Elena
Mayer, Bruna Angelina
Abilhoa, Vinícius
de Paiva Affonso, Igor
Ferreira Artoni, Roberto
author_sort Kerniske, Franciele Fernanda
collection PubMed
description Fish populations that reside in completely isolated freshwater ecosystems are rare worldwide. The Vila Velha State Park (VVSP), located in southern Brazil, is recognized for its arenitic formations called sinkholes (furnas), which are completely isolated. Fish populations within, such as those of Psalidodon aff. fasciatus, often develop vertebral malformations due to this isolation from other conspecifics and other species. In this study, we analyzed geometric morphology in digital radiographs to identify congenital deformations of Psalidodon aff. fasciatus in Furna 2 of VVSP. We found many fish with spinal deformities, including wide variation in the number of caudal vertebrae and corporal deformations related to a flattened body and spinal curvature. Females were more affected than males. We also demonstrated that these deformations reflect inbreeding and an absence of gene flow in the population. In conclusion, isolated populations such as fish species in furnas are potential models for evo-devo research.
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spelling pubmed-85413252021-10-29 Spinal malformations in a naturally isolated Neotropical fish population Kerniske, Franciele Fernanda Pena Castro, Jonathan De la Ossa-Guerra, Luz Elena Mayer, Bruna Angelina Abilhoa, Vinícius de Paiva Affonso, Igor Ferreira Artoni, Roberto PeerJ Aquaculture, Fisheries and Fish Science Fish populations that reside in completely isolated freshwater ecosystems are rare worldwide. The Vila Velha State Park (VVSP), located in southern Brazil, is recognized for its arenitic formations called sinkholes (furnas), which are completely isolated. Fish populations within, such as those of Psalidodon aff. fasciatus, often develop vertebral malformations due to this isolation from other conspecifics and other species. In this study, we analyzed geometric morphology in digital radiographs to identify congenital deformations of Psalidodon aff. fasciatus in Furna 2 of VVSP. We found many fish with spinal deformities, including wide variation in the number of caudal vertebrae and corporal deformations related to a flattened body and spinal curvature. Females were more affected than males. We also demonstrated that these deformations reflect inbreeding and an absence of gene flow in the population. In conclusion, isolated populations such as fish species in furnas are potential models for evo-devo research. PeerJ Inc. 2021-10-20 /pmc/articles/PMC8541325/ /pubmed/34721968 http://dx.doi.org/10.7717/peerj.12239 Text en © 2021 Kerniske et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited.
spellingShingle Aquaculture, Fisheries and Fish Science
Kerniske, Franciele Fernanda
Pena Castro, Jonathan
De la Ossa-Guerra, Luz Elena
Mayer, Bruna Angelina
Abilhoa, Vinícius
de Paiva Affonso, Igor
Ferreira Artoni, Roberto
Spinal malformations in a naturally isolated Neotropical fish population
title Spinal malformations in a naturally isolated Neotropical fish population
title_full Spinal malformations in a naturally isolated Neotropical fish population
title_fullStr Spinal malformations in a naturally isolated Neotropical fish population
title_full_unstemmed Spinal malformations in a naturally isolated Neotropical fish population
title_short Spinal malformations in a naturally isolated Neotropical fish population
title_sort spinal malformations in a naturally isolated neotropical fish population
topic Aquaculture, Fisheries and Fish Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8541325/
https://www.ncbi.nlm.nih.gov/pubmed/34721968
http://dx.doi.org/10.7717/peerj.12239
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