Strong Population Genetic Structure in a Broadcast-Spawning Antarctic Marine Invertebrate
Although studies of population genetic structure are commonplace, a strong bias exists toward species from low latitudes and with relatively poor dispersal capabilities. Consequently, we used 280 amplified fragment length polymorphism bands to explore patterns of genetic differentiation among 8 popu...
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fthighwire:oai:open-archive.highwire.org:jhered:esq094v2 2023-05-15T13:03:53+02:00 Strong Population Genetic Structure in a Broadcast-Spawning Antarctic Marine Invertebrate Hoffman, Joseph I. Peck, Lloyd S. Linse, Katrin Clarke, Andrew 2010-09-28 07:30:39.0 text/html http://jhered.oxfordjournals.org/cgi/content/short/esq094v2 https://doi.org/10.1093/jhered/esq094 en eng Oxford University Press http://jhered.oxfordjournals.org/cgi/content/short/esq094v2 http://dx.doi.org/10.1093/jhered/esq094 Copyright (C) 2010, American Genetic Association Article TEXT 2010 fthighwire https://doi.org/10.1093/jhered/esq094 2013-05-28T10:22:27Z Although studies of population genetic structure are commonplace, a strong bias exists toward species from low latitudes and with relatively poor dispersal capabilities. Consequently, we used 280 amplified fragment length polymorphism bands to explore patterns of genetic differentiation among 8 populations of a high latitude broadcast-spawning marine mollusc, the Antarctic limpet Nacella concinna. Over 300 individuals were sampled along a latitudinal gradient spanning the Antarctic Peninsula from Adelaide Island to King George Island (67°–62°S), then to Signy Island (60°S) and South Georgia (54°S). Populations from the Antarctic Peninsula exhibited little genetic structure but were themselves strongly differentiated from both Signy and South Georgia. This finding was analytically highly robust and implies the presence of significant oceanographic barriers to gene flow in a species long regarded as a classic example of a widely dispersing broadcast spawner. Text Adelaide Island Antarc* Antarctic Antarctic Peninsula King George Island Signy Island HighWire Press (Stanford University) Antarctic The Antarctic Antarctic Peninsula King George Island Signy Island ENVELOPE(-45.595,-45.595,-60.708,-60.708) Nacella ENVELOPE(-60.783,-60.783,-62.467,-62.467) Adelaide Island ENVELOPE(-68.914,-68.914,-67.762,-67.762) Journal of Heredity 102 1 55 66 |
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HighWire Press (Stanford University) |
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English |
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Article Hoffman, Joseph I. Peck, Lloyd S. Linse, Katrin Clarke, Andrew Strong Population Genetic Structure in a Broadcast-Spawning Antarctic Marine Invertebrate |
topic_facet |
Article |
description |
Although studies of population genetic structure are commonplace, a strong bias exists toward species from low latitudes and with relatively poor dispersal capabilities. Consequently, we used 280 amplified fragment length polymorphism bands to explore patterns of genetic differentiation among 8 populations of a high latitude broadcast-spawning marine mollusc, the Antarctic limpet Nacella concinna. Over 300 individuals were sampled along a latitudinal gradient spanning the Antarctic Peninsula from Adelaide Island to King George Island (67°–62°S), then to Signy Island (60°S) and South Georgia (54°S). Populations from the Antarctic Peninsula exhibited little genetic structure but were themselves strongly differentiated from both Signy and South Georgia. This finding was analytically highly robust and implies the presence of significant oceanographic barriers to gene flow in a species long regarded as a classic example of a widely dispersing broadcast spawner. |
format |
Text |
author |
Hoffman, Joseph I. Peck, Lloyd S. Linse, Katrin Clarke, Andrew |
author_facet |
Hoffman, Joseph I. Peck, Lloyd S. Linse, Katrin Clarke, Andrew |
author_sort |
Hoffman, Joseph I. |
title |
Strong Population Genetic Structure in a Broadcast-Spawning Antarctic Marine Invertebrate |
title_short |
Strong Population Genetic Structure in a Broadcast-Spawning Antarctic Marine Invertebrate |
title_full |
Strong Population Genetic Structure in a Broadcast-Spawning Antarctic Marine Invertebrate |
title_fullStr |
Strong Population Genetic Structure in a Broadcast-Spawning Antarctic Marine Invertebrate |
title_full_unstemmed |
Strong Population Genetic Structure in a Broadcast-Spawning Antarctic Marine Invertebrate |
title_sort |
strong population genetic structure in a broadcast-spawning antarctic marine invertebrate |
publisher |
Oxford University Press |
publishDate |
2010 |
url |
http://jhered.oxfordjournals.org/cgi/content/short/esq094v2 https://doi.org/10.1093/jhered/esq094 |
long_lat |
ENVELOPE(-45.595,-45.595,-60.708,-60.708) ENVELOPE(-60.783,-60.783,-62.467,-62.467) ENVELOPE(-68.914,-68.914,-67.762,-67.762) |
geographic |
Antarctic The Antarctic Antarctic Peninsula King George Island Signy Island Nacella Adelaide Island |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula King George Island Signy Island Nacella Adelaide Island |
genre |
Adelaide Island Antarc* Antarctic Antarctic Peninsula King George Island Signy Island |
genre_facet |
Adelaide Island Antarc* Antarctic Antarctic Peninsula King George Island Signy Island |
op_relation |
http://jhered.oxfordjournals.org/cgi/content/short/esq094v2 http://dx.doi.org/10.1093/jhered/esq094 |
op_rights |
Copyright (C) 2010, American Genetic Association |
op_doi |
https://doi.org/10.1093/jhered/esq094 |
container_title |
Journal of Heredity |
container_volume |
102 |
container_issue |
1 |
container_start_page |
55 |
op_container_end_page |
66 |
_version_ |
1766347236987371520 |