Distributional Patterns of Polychaetes Across the West Antarctic Based on DNA Barcoding and Particle Tracking Analyses.
Recent genetic investigations have uncovered a high proportion of cryptic species within Antarctic polychaetes. It is likely that these evolved in isolation during periods of glaciation, and it is possible that cryptic populations would have remained geographically restricted from one another occupy...
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ftunivliverpool:oai:livrepository.liverpool.ac.uk:3012517 2023-05-15T13:59:07+02:00 Distributional Patterns of Polychaetes Across the West Antarctic Based on DNA Barcoding and Particle Tracking Analyses. Braiser, MJ Harle, J Wiklund, H Jeffreys, RM Linse, K Ruhl, HA Glover, AG 2017-11-16 http://livrepository.liverpool.ac.uk/3012517/ unknown Frontiers Media Braiser, MJ, Harle, J, Wiklund, H, Jeffreys, RM orcid:0000-0001-6114-2334 , Linse, K, Ruhl, HA and Glover, AG (2017) Distributional Patterns of Polychaetes Across the West Antarctic Based on DNA Barcoding and Particle Tracking Analyses. Frontiers in Marine Science, 4. Article NonPeerReviewed 2017 ftunivliverpool 2022-04-25T09:08:32Z Recent genetic investigations have uncovered a high proportion of cryptic species within Antarctic polychaetes. It is likely that these evolved in isolation during periods of glaciation, and it is possible that cryptic populations would have remained geographically restricted from one another occupying different regions of Antarctica. By analysing the distributions of nine morphospecies, (six of which contained potential cryptic species), we find evidence for widespread distributions within the West Antarctic. Around 60% of the cryptic species exhibited sympatric distributions, and at least one cryptic clade was found to be widespread. Additional DNA barcodes from GenBank and morphological records extended the observed range of three species studied here, and indicate potential circum-Antarctic traits. Particle tracking analyses were used to model theoretical dispersal ranges of pelagic larvae. Data from these models suggest that the observed species distributions inferred from genetic similarity could have been established and maintained through the regional oceanographic currents, including the Antarctic Circumpolar Current (ACC) and its coastal counter current. Improved understanding of the distribution of Antarctic fauna is essential for predicting the impacts of environmental change and determining management strategies for the region. Article in Journal/Newspaper Antarc* Antarctic Antarctica The University of Liverpool Repository Antarctic The Antarctic |
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The University of Liverpool Repository |
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Recent genetic investigations have uncovered a high proportion of cryptic species within Antarctic polychaetes. It is likely that these evolved in isolation during periods of glaciation, and it is possible that cryptic populations would have remained geographically restricted from one another occupying different regions of Antarctica. By analysing the distributions of nine morphospecies, (six of which contained potential cryptic species), we find evidence for widespread distributions within the West Antarctic. Around 60% of the cryptic species exhibited sympatric distributions, and at least one cryptic clade was found to be widespread. Additional DNA barcodes from GenBank and morphological records extended the observed range of three species studied here, and indicate potential circum-Antarctic traits. Particle tracking analyses were used to model theoretical dispersal ranges of pelagic larvae. Data from these models suggest that the observed species distributions inferred from genetic similarity could have been established and maintained through the regional oceanographic currents, including the Antarctic Circumpolar Current (ACC) and its coastal counter current. Improved understanding of the distribution of Antarctic fauna is essential for predicting the impacts of environmental change and determining management strategies for the region. |
format |
Article in Journal/Newspaper |
author |
Braiser, MJ Harle, J Wiklund, H Jeffreys, RM Linse, K Ruhl, HA Glover, AG |
spellingShingle |
Braiser, MJ Harle, J Wiklund, H Jeffreys, RM Linse, K Ruhl, HA Glover, AG Distributional Patterns of Polychaetes Across the West Antarctic Based on DNA Barcoding and Particle Tracking Analyses. |
author_facet |
Braiser, MJ Harle, J Wiklund, H Jeffreys, RM Linse, K Ruhl, HA Glover, AG |
author_sort |
Braiser, MJ |
title |
Distributional Patterns of Polychaetes Across the West Antarctic Based on DNA Barcoding and Particle Tracking Analyses. |
title_short |
Distributional Patterns of Polychaetes Across the West Antarctic Based on DNA Barcoding and Particle Tracking Analyses. |
title_full |
Distributional Patterns of Polychaetes Across the West Antarctic Based on DNA Barcoding and Particle Tracking Analyses. |
title_fullStr |
Distributional Patterns of Polychaetes Across the West Antarctic Based on DNA Barcoding and Particle Tracking Analyses. |
title_full_unstemmed |
Distributional Patterns of Polychaetes Across the West Antarctic Based on DNA Barcoding and Particle Tracking Analyses. |
title_sort |
distributional patterns of polychaetes across the west antarctic based on dna barcoding and particle tracking analyses. |
publisher |
Frontiers Media |
publishDate |
2017 |
url |
http://livrepository.liverpool.ac.uk/3012517/ |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_relation |
Braiser, MJ, Harle, J, Wiklund, H, Jeffreys, RM orcid:0000-0001-6114-2334 , Linse, K, Ruhl, HA and Glover, AG (2017) Distributional Patterns of Polychaetes Across the West Antarctic Based on DNA Barcoding and Particle Tracking Analyses. Frontiers in Marine Science, 4. |
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1766267486137745408 |