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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Published in:FACETS
Main Authors: Anthony L. Einfeldt, Felix Zhou, Jason A. Addison
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 2017
Subjects:
geo
Online Access:https://doi.org/10.1139/facets-2016-0044
https://doaj.org/article/2dd788dc5d644edea3769b02bd8c24c2
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spelling fttriple:oai:gotriple.eu:oai:doaj.org/article:2dd788dc5d644edea3769b02bd8c24c2 2023-05-15T17:45:32+02:00 Genetic discontinuity in two high dispersal marine invertebrates in the northwest Atlantic Anthony L. Einfeldt Felix Zhou Jason A. Addison 2017-02-01 https://doi.org/10.1139/facets-2016-0044 https://doaj.org/article/2dd788dc5d644edea3769b02bd8c24c2 en eng Canadian Science Publishing doi:10.1139/facets-2016-0044 2371-1671 https://doaj.org/article/2dd788dc5d644edea3769b02bd8c24c2 undefined FACETS, Vol 2, Pp 160-177 (2017) phylogeography mtDNA genetics marine invertebrate Tritia obsoleta Macoma petalum envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2017 fttriple https://doi.org/10.1139/facets-2016-0044 2023-01-22T17:52:57Z 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 Unknown FACETS 2 1 160 177
institution Open Polar
collection Unknown
op_collection_id fttriple
language English
topic phylogeography
mtDNA
genetics
marine invertebrate
Tritia obsoleta
Macoma petalum
envir
geo
spellingShingle phylogeography
mtDNA
genetics
marine invertebrate
Tritia obsoleta
Macoma petalum
envir
geo
Anthony L. Einfeldt
Felix Zhou
Jason A. Addison
Genetic discontinuity in two high dispersal marine invertebrates in the northwest Atlantic
topic_facet phylogeography
mtDNA
genetics
marine invertebrate
Tritia obsoleta
Macoma petalum
envir
geo
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.
format Article in Journal/Newspaper
author Anthony L. Einfeldt
Felix Zhou
Jason A. Addison
author_facet Anthony L. Einfeldt
Felix Zhou
Jason A. Addison
author_sort Anthony L. Einfeldt
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 https://doi.org/10.1139/facets-2016-0044
https://doaj.org/article/2dd788dc5d644edea3769b02bd8c24c2
genre Northwest Atlantic
genre_facet Northwest Atlantic
op_source FACETS, Vol 2, Pp 160-177 (2017)
op_relation doi:10.1139/facets-2016-0044
2371-1671
https://doaj.org/article/2dd788dc5d644edea3769b02bd8c24c2
op_rights undefined
op_doi https://doi.org/10.1139/facets-2016-0044
container_title FACETS
container_volume 2
container_issue 1
container_start_page 160
op_container_end_page 177
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