Genetic discontinuity in two high dispersal marine invertebrates in the northwest Atlantic
Oceanic circulation patterns shape both the distribution of species and spatial patterns of intraspecific genetic variation by influencing passively dispersed marine invertebrates. In the northwest Atlantic, strong and consistent currents at the mouth of the Bay of Fundy are expected to restrict dis...
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crcansciencepubl:10.1139/facets-2016-0044 2023-12-17T10:47:36+01:00 Genetic discontinuity in two high dispersal marine invertebrates in the northwest Atlantic Einfeldt, Anthony L. Zhou, Felix Addison, Jason A. Miller, Kristi M. 2017 http://dx.doi.org/10.1139/facets-2016-0044 http://www.facetsjournal.com/doi/pdf/10.1139/facets-2016-0044 en eng Canadian Science Publishing FACETS volume 2, issue 1, page 160-177 ISSN 2371-1671 Multidisciplinary journal-article 2017 crcansciencepubl https://doi.org/10.1139/facets-2016-0044 2023-11-19T13:38:47Z Oceanic circulation patterns shape both the distribution of species and spatial patterns of intraspecific genetic variation by influencing passively dispersed marine invertebrates. In the northwest Atlantic, strong and consistent currents at the mouth of the Bay of Fundy are expected to restrict dispersal in this region, but the relationship between populations of high dispersal species along the surrounding coastal regions has been largely underrepresented in the phylogeographic literature. We analyzed phylogeographic patterns in two intertidal invertebrates with high dispersal abilities, Tritia obsoleta (Mollusca: Gastropoda) and Macoma petalum (Mollusca: Bivalvia), between Cape Cod and the Gulf of St. Lawrence using mitochondrial DNA (mtDNA). Hierarchical analysis of molecular variance revealed population structuring among regions defined by circulation patterns, highly divergent lineages within M. petalum, and strong concordant genetic subdivision in both species between the Bay of Fundy and Gulf of Maine. Our results suggest that the gyre at the mouth of the bay is influential in restricting alongshore dispersal, allowing genetic divergence between regions to arise through genetic drift. These findings are concordant with biogeographic and phylogeographic studies of other marine organisms, suggesting that the genetic isolation of widely distributed species may be a common feature of intertidal invertebrate communities in the Bay of Fundy. Article in Journal/Newspaper Northwest Atlantic Canadian Science Publishing (via Crossref) FACETS 2 1 160 177 |
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Canadian Science Publishing (via Crossref) |
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English |
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Multidisciplinary |
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Multidisciplinary Einfeldt, Anthony L. Zhou, Felix Addison, Jason A. Genetic discontinuity in two high dispersal marine invertebrates in the northwest Atlantic |
topic_facet |
Multidisciplinary |
description |
Oceanic circulation patterns shape both the distribution of species and spatial patterns of intraspecific genetic variation by influencing passively dispersed marine invertebrates. In the northwest Atlantic, strong and consistent currents at the mouth of the Bay of Fundy are expected to restrict dispersal in this region, but the relationship between populations of high dispersal species along the surrounding coastal regions has been largely underrepresented in the phylogeographic literature. We analyzed phylogeographic patterns in two intertidal invertebrates with high dispersal abilities, Tritia obsoleta (Mollusca: Gastropoda) and Macoma petalum (Mollusca: Bivalvia), between Cape Cod and the Gulf of St. Lawrence using mitochondrial DNA (mtDNA). Hierarchical analysis of molecular variance revealed population structuring among regions defined by circulation patterns, highly divergent lineages within M. petalum, and strong concordant genetic subdivision in both species between the Bay of Fundy and Gulf of Maine. Our results suggest that the gyre at the mouth of the bay is influential in restricting alongshore dispersal, allowing genetic divergence between regions to arise through genetic drift. These findings are concordant with biogeographic and phylogeographic studies of other marine organisms, suggesting that the genetic isolation of widely distributed species may be a common feature of intertidal invertebrate communities in the Bay of Fundy. |
author2 |
Miller, Kristi M. |
format |
Article in Journal/Newspaper |
author |
Einfeldt, Anthony L. Zhou, Felix Addison, Jason A. |
author_facet |
Einfeldt, Anthony L. Zhou, Felix Addison, Jason A. |
author_sort |
Einfeldt, Anthony L. |
title |
Genetic discontinuity in two high dispersal marine invertebrates in the northwest Atlantic |
title_short |
Genetic discontinuity in two high dispersal marine invertebrates in the northwest Atlantic |
title_full |
Genetic discontinuity in two high dispersal marine invertebrates in the northwest Atlantic |
title_fullStr |
Genetic discontinuity in two high dispersal marine invertebrates in the northwest Atlantic |
title_full_unstemmed |
Genetic discontinuity in two high dispersal marine invertebrates in the northwest Atlantic |
title_sort |
genetic discontinuity in two high dispersal marine invertebrates in the northwest atlantic |
publisher |
Canadian Science Publishing |
publishDate |
2017 |
url |
http://dx.doi.org/10.1139/facets-2016-0044 http://www.facetsjournal.com/doi/pdf/10.1139/facets-2016-0044 |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
FACETS volume 2, issue 1, page 160-177 ISSN 2371-1671 |
op_doi |
https://doi.org/10.1139/facets-2016-0044 |
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FACETS |
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2 |
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160 |
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177 |
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