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A star is torn—molecular analysis divides the Mediterranean population of Poli’s stellate barnacle, Chthamalus stellatus (Cirripedia, Chtamalidae)

Poli’s stellate barnacle, Chthamalus stellatus Poli, populates the Mediterranean Sea, the North-Eastern Atlantic coasts, and the offshore Eastern Atlantic islands. Previous studies have found apparent genetic differences between the Atlantic and the Mediterranean populations of C. stellatus, suggest...

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Autores principales: Tikochinski, Yaron, Tamir, Sharon, Simon-Blecher, Noa, Motro, Uzi, Achituv, Yair
Formato: Online Artículo Texto
Lenguaje:English
Publicado: PeerJ Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8308608/
https://www.ncbi.nlm.nih.gov/pubmed/34327065
http://dx.doi.org/10.7717/peerj.11826
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author Tikochinski, Yaron
Tamir, Sharon
Simon-Blecher, Noa
Motro, Uzi
Achituv, Yair
author_facet Tikochinski, Yaron
Tamir, Sharon
Simon-Blecher, Noa
Motro, Uzi
Achituv, Yair
author_sort Tikochinski, Yaron
collection PubMed
description Poli’s stellate barnacle, Chthamalus stellatus Poli, populates the Mediterranean Sea, the North-Eastern Atlantic coasts, and the offshore Eastern Atlantic islands. Previous studies have found apparent genetic differences between the Atlantic and the Mediterranean populations of C. stellatus, suggesting possible geological and oceanographic explanations for these differences. We have studied the genetic diversity of 14 populations spanning from the Eastern Atlantic to the Eastern Mediterranean, using two nuclear genes sequences revealing a total of 63 polymorphic sites. Both genotype-based, haplotype-based and the novel SNP distribution population-based methods have found that these populations represent a geographic cline along the west to east localities. The differences in SNP distribution among populations further separates a major western cluster into two smaller clusters, the Eastern Atlantic and the Western Mediterranean. It also separates the major eastern cluster into two smaller clusters, the Mid-Mediterranean and Eastern Mediterranean. We suggested here environmental conditions like surface currents, water salinity and temperature as probable factors that have formed the population structure. We demonstrate that C. stellatus is a suitable model organism for studying how geological events and hydrographic conditions shape the fauna in the Mediterranean Sea.
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spelling pubmed-83086082021-07-28 A star is torn—molecular analysis divides the Mediterranean population of Poli’s stellate barnacle, Chthamalus stellatus (Cirripedia, Chtamalidae) Tikochinski, Yaron Tamir, Sharon Simon-Blecher, Noa Motro, Uzi Achituv, Yair PeerJ Biodiversity Poli’s stellate barnacle, Chthamalus stellatus Poli, populates the Mediterranean Sea, the North-Eastern Atlantic coasts, and the offshore Eastern Atlantic islands. Previous studies have found apparent genetic differences between the Atlantic and the Mediterranean populations of C. stellatus, suggesting possible geological and oceanographic explanations for these differences. We have studied the genetic diversity of 14 populations spanning from the Eastern Atlantic to the Eastern Mediterranean, using two nuclear genes sequences revealing a total of 63 polymorphic sites. Both genotype-based, haplotype-based and the novel SNP distribution population-based methods have found that these populations represent a geographic cline along the west to east localities. The differences in SNP distribution among populations further separates a major western cluster into two smaller clusters, the Eastern Atlantic and the Western Mediterranean. It also separates the major eastern cluster into two smaller clusters, the Mid-Mediterranean and Eastern Mediterranean. We suggested here environmental conditions like surface currents, water salinity and temperature as probable factors that have formed the population structure. We demonstrate that C. stellatus is a suitable model organism for studying how geological events and hydrographic conditions shape the fauna in the Mediterranean Sea. PeerJ Inc. 2021-07-21 /pmc/articles/PMC8308608/ /pubmed/34327065 http://dx.doi.org/10.7717/peerj.11826 Text en ©2021 Tikochinski 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 Biodiversity
Tikochinski, Yaron
Tamir, Sharon
Simon-Blecher, Noa
Motro, Uzi
Achituv, Yair
A star is torn—molecular analysis divides the Mediterranean population of Poli’s stellate barnacle, Chthamalus stellatus (Cirripedia, Chtamalidae)
title A star is torn—molecular analysis divides the Mediterranean population of Poli’s stellate barnacle, Chthamalus stellatus (Cirripedia, Chtamalidae)
title_full A star is torn—molecular analysis divides the Mediterranean population of Poli’s stellate barnacle, Chthamalus stellatus (Cirripedia, Chtamalidae)
title_fullStr A star is torn—molecular analysis divides the Mediterranean population of Poli’s stellate barnacle, Chthamalus stellatus (Cirripedia, Chtamalidae)
title_full_unstemmed A star is torn—molecular analysis divides the Mediterranean population of Poli’s stellate barnacle, Chthamalus stellatus (Cirripedia, Chtamalidae)
title_short A star is torn—molecular analysis divides the Mediterranean population of Poli’s stellate barnacle, Chthamalus stellatus (Cirripedia, Chtamalidae)
title_sort star is torn—molecular analysis divides the mediterranean population of poli’s stellate barnacle, chthamalus stellatus (cirripedia, chtamalidae)
topic Biodiversity
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8308608/
https://www.ncbi.nlm.nih.gov/pubmed/34327065
http://dx.doi.org/10.7717/peerj.11826
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