Deciphering the Hearts: Geometric Morphometrics Reveals Shape Variation in
Abatus is a genus of irregular brooding sea urchins to the Southern Ocean. Among the 11 described species, three shared morphological traits and present an infaunal lifestyle in the infralittoral from the Subantarctic province; A. cavernosus in Patagonia, A. cordatus in Kerguelen, and A. agassizii i...
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Online Access: | https://doi.org/10.3390/ani14162376 https://pubmed.ncbi.nlm.nih.gov/39199909 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11350873/ |
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ftpubmed:39199909 2024-09-15T18:37:04+00:00 Deciphering the Hearts: Geometric Morphometrics Reveals Shape Variation in Moya, Fernando Hernández, Jordan Suazo, Manuel J Saucède, Thomas Brickle, Paul Poulin, Elie Benítez, Hugo A 2024 Aug 16 https://doi.org/10.3390/ani14162376 https://pubmed.ncbi.nlm.nih.gov/39199909 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11350873/ eng eng MDPI https://doi.org/10.3390/ani14162376 https://pubmed.ncbi.nlm.nih.gov/39199909 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11350873/ Animals (Basel) ISSN:2076-2615 Volume:14 Issue:16 Southern Ocean Spatangoida echinoderm geometric morphometrics invertebrates shape Journal Article 2024 ftpubmed https://doi.org/10.3390/ani14162376 2024-09-01T16:02:00Z Abatus is a genus of irregular brooding sea urchins to the Southern Ocean. Among the 11 described species, three shared morphological traits and present an infaunal lifestyle in the infralittoral from the Subantarctic province; A. cavernosus in Patagonia, A. cordatus in Kerguelen, and A. agassizii in Tierra del Fuego and South Shetlands. The systematic of Abatus, based on morphological characters and incomplete phylogenies, is complex and largely unresolved. This study evaluates the shape variation among these species using geometric morphometrics analysis (GM). For this, 72 individuals from four locations; South Shetlands, Kerguelen, Patagonia, and Falklands/Malvinas were photographed, and 37 landmarks were digitized. To evaluate the shape differences among species, a principal component analysis and a Procrustes ANOVA were performed. Our results showed a marked difference between the Falklands/Malvinas and the other localities, characterized by a narrower and more elongated shape and a significant influence of location in shape but not sex. Additionally, the effect of allometry was evaluated using a permutation test and a regression between shape and size, showing significant shape changes during growth in all groups. The possibility that the Falklands/Malvinas group shows phenotypic plasticity or represents a distinct evolutionary unit is discussed. Finally, GM proved to be a powerful tool to differentiate these species, highlighting its utility in systematic studies. Article in Journal/Newspaper Southern Ocean Tierra del Fuego PubMed Central (PMC) Animals 14 16 2376 |
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Southern Ocean Spatangoida echinoderm geometric morphometrics invertebrates shape |
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Southern Ocean Spatangoida echinoderm geometric morphometrics invertebrates shape Moya, Fernando Hernández, Jordan Suazo, Manuel J Saucède, Thomas Brickle, Paul Poulin, Elie Benítez, Hugo A Deciphering the Hearts: Geometric Morphometrics Reveals Shape Variation in |
topic_facet |
Southern Ocean Spatangoida echinoderm geometric morphometrics invertebrates shape |
description |
Abatus is a genus of irregular brooding sea urchins to the Southern Ocean. Among the 11 described species, three shared morphological traits and present an infaunal lifestyle in the infralittoral from the Subantarctic province; A. cavernosus in Patagonia, A. cordatus in Kerguelen, and A. agassizii in Tierra del Fuego and South Shetlands. The systematic of Abatus, based on morphological characters and incomplete phylogenies, is complex and largely unresolved. This study evaluates the shape variation among these species using geometric morphometrics analysis (GM). For this, 72 individuals from four locations; South Shetlands, Kerguelen, Patagonia, and Falklands/Malvinas were photographed, and 37 landmarks were digitized. To evaluate the shape differences among species, a principal component analysis and a Procrustes ANOVA were performed. Our results showed a marked difference between the Falklands/Malvinas and the other localities, characterized by a narrower and more elongated shape and a significant influence of location in shape but not sex. Additionally, the effect of allometry was evaluated using a permutation test and a regression between shape and size, showing significant shape changes during growth in all groups. The possibility that the Falklands/Malvinas group shows phenotypic plasticity or represents a distinct evolutionary unit is discussed. Finally, GM proved to be a powerful tool to differentiate these species, highlighting its utility in systematic studies. |
format |
Article in Journal/Newspaper |
author |
Moya, Fernando Hernández, Jordan Suazo, Manuel J Saucède, Thomas Brickle, Paul Poulin, Elie Benítez, Hugo A |
author_facet |
Moya, Fernando Hernández, Jordan Suazo, Manuel J Saucède, Thomas Brickle, Paul Poulin, Elie Benítez, Hugo A |
author_sort |
Moya, Fernando |
title |
Deciphering the Hearts: Geometric Morphometrics Reveals Shape Variation in |
title_short |
Deciphering the Hearts: Geometric Morphometrics Reveals Shape Variation in |
title_full |
Deciphering the Hearts: Geometric Morphometrics Reveals Shape Variation in |
title_fullStr |
Deciphering the Hearts: Geometric Morphometrics Reveals Shape Variation in |
title_full_unstemmed |
Deciphering the Hearts: Geometric Morphometrics Reveals Shape Variation in |
title_sort |
deciphering the hearts: geometric morphometrics reveals shape variation in |
publisher |
MDPI |
publishDate |
2024 |
url |
https://doi.org/10.3390/ani14162376 https://pubmed.ncbi.nlm.nih.gov/39199909 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11350873/ |
genre |
Southern Ocean Tierra del Fuego |
genre_facet |
Southern Ocean Tierra del Fuego |
op_source |
Animals (Basel) ISSN:2076-2615 Volume:14 Issue:16 |
op_relation |
https://doi.org/10.3390/ani14162376 https://pubmed.ncbi.nlm.nih.gov/39199909 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11350873/ |
op_doi |
https://doi.org/10.3390/ani14162376 |
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