Data from: Contemporary population structure and post-glacial genetic demography in a migratory marine species, the blacknose shark, Carcharhinus acronotus
Patterns of population structure and historical genetic demography of blacknose sharks in the western North Atlantic Ocean were assessed using variation in nuclear-encoded microsatellites and sequences of mitochondrial (mt)DNA. Significant heterogeneity and/or inferred barriers to gene flow, based o...
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Data Archiving and Networked Services (DANS)
2020
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Online Access: | https://doi.org/10.5061/dryad.vv277 |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::d1dbb17c4e7c4b7d8e803751b8ab2149 2023-05-15T17:35:09+02:00 Data from: Contemporary population structure and post-glacial genetic demography in a migratory marine species, the blacknose shark, Carcharhinus acronotus Portnoy, David Hollenbeck, Christopher Belcher, Carolyn Driggers III, William Frazier, Bryan Gelsleichter, Jim Grubbs, R. D. Gold, John Portnoy, D. S. Hollenbeck, C. M. Gold, J. R. Belcher, C. N. Frazier, B. S. Gelsleichter, J. Driggers, W. B. 2020-06-29 https://doi.org/10.5061/dryad.vv277 undefined unknown Data Archiving and Networked Services (DANS) http://dx.doi.org/10.5061/dryad.vv277 https://dx.doi.org/10.5061/dryad.vv277 lic_creative-commons oai:easy.dans.knaw.nl:easy-dataset:87143 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:87143 10.5061/dryad.vv277 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c Life sciences medicine and health care conservation genetics glacial refugia elasmobranchs Carcharhinus acronotus secondary contact envir geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2020 fttriple https://doi.org/10.5061/dryad.vv277 2023-01-22T17:42:08Z Patterns of population structure and historical genetic demography of blacknose sharks in the western North Atlantic Ocean were assessed using variation in nuclear-encoded microsatellites and sequences of mitochondrial (mt)DNA. Significant heterogeneity and/or inferred barriers to gene flow, based on microsatellites and/or mtDNA, revealed the occurrence of five genetic populations localized to five geographic regions: the southeastern U.S Atlantic coast, the eastern Gulf of Mexico, the western Gulf of Mexico, Campeche Bay in the southern Gulf of Mexico, and the Bahamas. Pairwise estimates of genetic divergence between sharks in the Bahamas and those in all other localities were more than an order of magnitude higher than between pairwise comparisons involving the other localities. Demographic modelling indicated that sharks in all five regions diverged after the last glacial maximum and, except for the Bahamas, experienced post-glacial, population expansion. The patterns of genetic variation also suggest that the southern Gulf of Mexico may have served as a glacial refuge and source for the expansion. Results of the study demonstrate that barriers to gene flow and historical genetic demography contributed to contemporary patterns of population structure in a coastal migratory species living in an otherwise continuous marine habitat. The results also indicate that for many marine species, failure to properly characterize barriers in terms of levels of contemporary gene flow could in part be due to inferences based solely on equilibrium assumptions. This could lead to erroneous conclusions regarding levels of connectivity in species of conservation concern. mtDNA haplotypesHaplotypes.txtFull data, blacknose sharkLocations, mtdNA haplotypes and microsatellite genotypesMicrosatellite genotypes of blacknose sharks.xlsx Dataset North Atlantic Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Life sciences medicine and health care conservation genetics glacial refugia elasmobranchs Carcharhinus acronotus secondary contact envir geo |
spellingShingle |
Life sciences medicine and health care conservation genetics glacial refugia elasmobranchs Carcharhinus acronotus secondary contact envir geo Portnoy, David Hollenbeck, Christopher Belcher, Carolyn Driggers III, William Frazier, Bryan Gelsleichter, Jim Grubbs, R. D. Gold, John Portnoy, D. S. Hollenbeck, C. M. Gold, J. R. Belcher, C. N. Frazier, B. S. Gelsleichter, J. Driggers, W. B. Data from: Contemporary population structure and post-glacial genetic demography in a migratory marine species, the blacknose shark, Carcharhinus acronotus |
topic_facet |
Life sciences medicine and health care conservation genetics glacial refugia elasmobranchs Carcharhinus acronotus secondary contact envir geo |
description |
Patterns of population structure and historical genetic demography of blacknose sharks in the western North Atlantic Ocean were assessed using variation in nuclear-encoded microsatellites and sequences of mitochondrial (mt)DNA. Significant heterogeneity and/or inferred barriers to gene flow, based on microsatellites and/or mtDNA, revealed the occurrence of five genetic populations localized to five geographic regions: the southeastern U.S Atlantic coast, the eastern Gulf of Mexico, the western Gulf of Mexico, Campeche Bay in the southern Gulf of Mexico, and the Bahamas. Pairwise estimates of genetic divergence between sharks in the Bahamas and those in all other localities were more than an order of magnitude higher than between pairwise comparisons involving the other localities. Demographic modelling indicated that sharks in all five regions diverged after the last glacial maximum and, except for the Bahamas, experienced post-glacial, population expansion. The patterns of genetic variation also suggest that the southern Gulf of Mexico may have served as a glacial refuge and source for the expansion. Results of the study demonstrate that barriers to gene flow and historical genetic demography contributed to contemporary patterns of population structure in a coastal migratory species living in an otherwise continuous marine habitat. The results also indicate that for many marine species, failure to properly characterize barriers in terms of levels of contemporary gene flow could in part be due to inferences based solely on equilibrium assumptions. This could lead to erroneous conclusions regarding levels of connectivity in species of conservation concern. mtDNA haplotypesHaplotypes.txtFull data, blacknose sharkLocations, mtdNA haplotypes and microsatellite genotypesMicrosatellite genotypes of blacknose sharks.xlsx |
format |
Dataset |
author |
Portnoy, David Hollenbeck, Christopher Belcher, Carolyn Driggers III, William Frazier, Bryan Gelsleichter, Jim Grubbs, R. D. Gold, John Portnoy, D. S. Hollenbeck, C. M. Gold, J. R. Belcher, C. N. Frazier, B. S. Gelsleichter, J. Driggers, W. B. |
author_facet |
Portnoy, David Hollenbeck, Christopher Belcher, Carolyn Driggers III, William Frazier, Bryan Gelsleichter, Jim Grubbs, R. D. Gold, John Portnoy, D. S. Hollenbeck, C. M. Gold, J. R. Belcher, C. N. Frazier, B. S. Gelsleichter, J. Driggers, W. B. |
author_sort |
Portnoy, David |
title |
Data from: Contemporary population structure and post-glacial genetic demography in a migratory marine species, the blacknose shark, Carcharhinus acronotus |
title_short |
Data from: Contemporary population structure and post-glacial genetic demography in a migratory marine species, the blacknose shark, Carcharhinus acronotus |
title_full |
Data from: Contemporary population structure and post-glacial genetic demography in a migratory marine species, the blacknose shark, Carcharhinus acronotus |
title_fullStr |
Data from: Contemporary population structure and post-glacial genetic demography in a migratory marine species, the blacknose shark, Carcharhinus acronotus |
title_full_unstemmed |
Data from: Contemporary population structure and post-glacial genetic demography in a migratory marine species, the blacknose shark, Carcharhinus acronotus |
title_sort |
data from: contemporary population structure and post-glacial genetic demography in a migratory marine species, the blacknose shark, carcharhinus acronotus |
publisher |
Data Archiving and Networked Services (DANS) |
publishDate |
2020 |
url |
https://doi.org/10.5061/dryad.vv277 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
oai:easy.dans.knaw.nl:easy-dataset:87143 oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:87143 10.5061/dryad.vv277 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c |
op_relation |
http://dx.doi.org/10.5061/dryad.vv277 https://dx.doi.org/10.5061/dryad.vv277 |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.vv277 |
_version_ |
1766134212805525504 |