Population genetic structure ofLepidonotothen larsenirevisited:Cyband microsatellites suggest limited connectivity in the Southern Ocean
Antarctic fishes (Notothenioidei) are characterized by unusually long pelagic larval stages of up to more than 1 yr, and population genetic studies on notothenioids have often revealed insignificant population differentiations over large geographic scales. Hence, gene flow by passive larval dispersa...
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ftopenagrar:oai:www.openagrar.de:timport_mods_00013776 2023-05-15T14:06:31+02:00 Population genetic structure ofLepidonotothen larsenirevisited:Cyband microsatellites suggest limited connectivity in the Southern Ocean Damerau, Malte Salzburger, Walter Hanel, Reinhold 2014 12 https://www.openagrar.de/receive/timport_mods_00013776 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00013776/dn054375.pdf eng eng Marine ecology progress series -- Mar Ecol Prog Ser MEPS -- 1616-1599 -- 0171-8630 -- 2022265-8 -- 800780-9 https://www.openagrar.de/receive/timport_mods_00013776 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00013776/dn054375.pdf only signed in user info:eu-repo/semantics/openAccess Text Notothenioidei Antarctic icefishes Larval dispersal Gene flow Bayesian skyline plots article Text 2014 ftopenagrar 2023-03-06T00:07:55Z Antarctic fishes (Notothenioidei) are characterized by unusually long pelagic larval stages of up to more than 1 yr, and population genetic studies on notothenioids have often revealed insignificant population differentiations over large geographic scales. Hence, gene flow by passive larval dispersal with ocean currents is often assumed to be predominant among notothenioid populations. We re-examined the genetic population structure of the semi-pelagic painted notothen Lepidonotothen larseni in the Atlantic sector of the Southern Ocean based on cytochrome b gene sequences and microsatellite markers, for which absence of population structure had been inferred in a preliminary study. Our new results suggest restricted gene flow between populations and low levels of successful dispersal with the currents. Hence, long pelagic larval phase durations do not translate into high genetic exchanges. In addition, we provide evidence based on Bayesian skyline plots of increasing population sizes in this sub-Antarctic species since the last glacial maximum. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean OpenAgrar (OA) Antarctic Southern Ocean |
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language |
English |
topic |
Text Notothenioidei Antarctic icefishes Larval dispersal Gene flow Bayesian skyline plots |
spellingShingle |
Text Notothenioidei Antarctic icefishes Larval dispersal Gene flow Bayesian skyline plots Damerau, Malte Salzburger, Walter Hanel, Reinhold Population genetic structure ofLepidonotothen larsenirevisited:Cyband microsatellites suggest limited connectivity in the Southern Ocean |
topic_facet |
Text Notothenioidei Antarctic icefishes Larval dispersal Gene flow Bayesian skyline plots |
description |
Antarctic fishes (Notothenioidei) are characterized by unusually long pelagic larval stages of up to more than 1 yr, and population genetic studies on notothenioids have often revealed insignificant population differentiations over large geographic scales. Hence, gene flow by passive larval dispersal with ocean currents is often assumed to be predominant among notothenioid populations. We re-examined the genetic population structure of the semi-pelagic painted notothen Lepidonotothen larseni in the Atlantic sector of the Southern Ocean based on cytochrome b gene sequences and microsatellite markers, for which absence of population structure had been inferred in a preliminary study. Our new results suggest restricted gene flow between populations and low levels of successful dispersal with the currents. Hence, long pelagic larval phase durations do not translate into high genetic exchanges. In addition, we provide evidence based on Bayesian skyline plots of increasing population sizes in this sub-Antarctic species since the last glacial maximum. |
format |
Article in Journal/Newspaper |
author |
Damerau, Malte Salzburger, Walter Hanel, Reinhold |
author_facet |
Damerau, Malte Salzburger, Walter Hanel, Reinhold |
author_sort |
Damerau, Malte |
title |
Population genetic structure ofLepidonotothen larsenirevisited:Cyband microsatellites suggest limited connectivity in the Southern Ocean |
title_short |
Population genetic structure ofLepidonotothen larsenirevisited:Cyband microsatellites suggest limited connectivity in the Southern Ocean |
title_full |
Population genetic structure ofLepidonotothen larsenirevisited:Cyband microsatellites suggest limited connectivity in the Southern Ocean |
title_fullStr |
Population genetic structure ofLepidonotothen larsenirevisited:Cyband microsatellites suggest limited connectivity in the Southern Ocean |
title_full_unstemmed |
Population genetic structure ofLepidonotothen larsenirevisited:Cyband microsatellites suggest limited connectivity in the Southern Ocean |
title_sort |
population genetic structure oflepidonotothen larsenirevisited:cyband microsatellites suggest limited connectivity in the southern ocean |
publishDate |
2014 |
url |
https://www.openagrar.de/receive/timport_mods_00013776 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00013776/dn054375.pdf |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
Marine ecology progress series -- Mar Ecol Prog Ser MEPS -- 1616-1599 -- 0171-8630 -- 2022265-8 -- 800780-9 https://www.openagrar.de/receive/timport_mods_00013776 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00013776/dn054375.pdf |
op_rights |
only signed in user info:eu-repo/semantics/openAccess |
_version_ |
1766278343940898816 |