Monsters with a shortened vertebral column: A population phenomenon in radiating fish Labeobarbus (Cyprinidae)
The phenomenon of a massive vertebral deformity was recorded in the radiating Labeobarbus assemblage from the middle reaches of the Genale River (south-eastern Ethiopia, East Africa). Within this sympatric assemblage, five trophic morphs—generalized, lipped, piscivorous and two scraping feeders—were...
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ftpubmed:oai:pubmedcentral.nih.gov:7817016 2023-05-15T15:32:38+02:00 Monsters with a shortened vertebral column: A population phenomenon in radiating fish Labeobarbus (Cyprinidae) Golubtsov, Alexander S. Korostelev, Nikolai B. Levin, Boris A. 2021-01-20 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7817016/ http://www.ncbi.nlm.nih.gov/pubmed/33471803 https://doi.org/10.1371/journal.pone.0239639 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7817016/ http://www.ncbi.nlm.nih.gov/pubmed/33471803 http://dx.doi.org/10.1371/journal.pone.0239639 © 2021 Golubtsov et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY PLoS One Research Article Text 2021 ftpubmed https://doi.org/10.1371/journal.pone.0239639 2021-01-31T01:30:40Z The phenomenon of a massive vertebral deformity was recorded in the radiating Labeobarbus assemblage from the middle reaches of the Genale River (south-eastern Ethiopia, East Africa). Within this sympatric assemblage, five trophic morphs—generalized, lipped, piscivorous and two scraping feeders—were reported between 1993 and 2019. In 2009, a new morph with prevalence of ~10% was discovered. The new morph, termed ‘short’, had an abnormally shortened vertebral column and a significantly deeper body. This type of deformity is common in farmed Atlantic salmon and other artificially reared fish, but is rare in nature. In the Genale Labeobarbus assemblage, the deformity was present exclusively within the generalized and lipped morphs. The short morph had between seven and 36 deformed (compressed and/or fused) vertebrae. Their body depth was positively correlated with number of deformed vertebrae. In another collection in 2019, the short morph was still present at a frequency of 11%. Various environmental and genetic factors could contribute to the development of this deformity in the Genale Labeobarbus, but based on the available data, it is impossible to confidently identify the key factor(s). Whether the result of genetics, the environment, or both, this deep-bodied phenotype is assumed to be an anti-predator adaptation, as there is evidence of its selective advantage in the generalized morph. The Genale monstrosity is the first reported case of a massive deformity of the vertebral column in a natural population of African fishes. Text Atlantic salmon PubMed Central (PMC) PLOS ONE 16 1 e0239639 |
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Research Article Golubtsov, Alexander S. Korostelev, Nikolai B. Levin, Boris A. Monsters with a shortened vertebral column: A population phenomenon in radiating fish Labeobarbus (Cyprinidae) |
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The phenomenon of a massive vertebral deformity was recorded in the radiating Labeobarbus assemblage from the middle reaches of the Genale River (south-eastern Ethiopia, East Africa). Within this sympatric assemblage, five trophic morphs—generalized, lipped, piscivorous and two scraping feeders—were reported between 1993 and 2019. In 2009, a new morph with prevalence of ~10% was discovered. The new morph, termed ‘short’, had an abnormally shortened vertebral column and a significantly deeper body. This type of deformity is common in farmed Atlantic salmon and other artificially reared fish, but is rare in nature. In the Genale Labeobarbus assemblage, the deformity was present exclusively within the generalized and lipped morphs. The short morph had between seven and 36 deformed (compressed and/or fused) vertebrae. Their body depth was positively correlated with number of deformed vertebrae. In another collection in 2019, the short morph was still present at a frequency of 11%. Various environmental and genetic factors could contribute to the development of this deformity in the Genale Labeobarbus, but based on the available data, it is impossible to confidently identify the key factor(s). Whether the result of genetics, the environment, or both, this deep-bodied phenotype is assumed to be an anti-predator adaptation, as there is evidence of its selective advantage in the generalized morph. The Genale monstrosity is the first reported case of a massive deformity of the vertebral column in a natural population of African fishes. |
format |
Text |
author |
Golubtsov, Alexander S. Korostelev, Nikolai B. Levin, Boris A. |
author_facet |
Golubtsov, Alexander S. Korostelev, Nikolai B. Levin, Boris A. |
author_sort |
Golubtsov, Alexander S. |
title |
Monsters with a shortened vertebral column: A population phenomenon in radiating fish Labeobarbus (Cyprinidae) |
title_short |
Monsters with a shortened vertebral column: A population phenomenon in radiating fish Labeobarbus (Cyprinidae) |
title_full |
Monsters with a shortened vertebral column: A population phenomenon in radiating fish Labeobarbus (Cyprinidae) |
title_fullStr |
Monsters with a shortened vertebral column: A population phenomenon in radiating fish Labeobarbus (Cyprinidae) |
title_full_unstemmed |
Monsters with a shortened vertebral column: A population phenomenon in radiating fish Labeobarbus (Cyprinidae) |
title_sort |
monsters with a shortened vertebral column: a population phenomenon in radiating fish labeobarbus (cyprinidae) |
publisher |
Public Library of Science |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7817016/ http://www.ncbi.nlm.nih.gov/pubmed/33471803 https://doi.org/10.1371/journal.pone.0239639 |
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Atlantic salmon |
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Atlantic salmon |
op_source |
PLoS One |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7817016/ http://www.ncbi.nlm.nih.gov/pubmed/33471803 http://dx.doi.org/10.1371/journal.pone.0239639 |
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© 2021 Golubtsov et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
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https://doi.org/10.1371/journal.pone.0239639 |
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