Are genes faster than crabs? Mitochondrial introgression exceeds larval dispersal during population expansion of the invasive crab Carcinus maenas
Biological invasions offer unique opportunities to investigate evolutionary dynamics at the peripheries of expanding populations. Here, we examine genetic patterns associated with admixture between two distinct invasive lineages of the European green crab, Carcinus maenas L., independently introduce...
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ftunivermont:oai:scholarworks.uvm.edu:rsfac-1131 2023-07-02T03:33:16+02:00 Are genes faster than crabs? Mitochondrial introgression exceeds larval dispersal during population expansion of the invasive crab Carcinus maenas Darling, John A. Tsai, Yi Hsin Erica Blakeslee, April M.H. Roman, Joe 2014-10-01T07:00:00Z application/pdf https://scholarworks.uvm.edu/rsfac/131 https://doi.org/10.1098/rsos.140202 https://scholarworks.uvm.edu/context/rsfac/article/1131/viewcontent/Roman2014a.pdf unknown UVM ScholarWorks https://scholarworks.uvm.edu/rsfac/131 doi:10.1098/rsos.140202 https://scholarworks.uvm.edu/context/rsfac/article/1131/viewcontent/Roman2014a.pdf © 2014 The Authors. http://creativecommons.org/licenses/by/4.0/ Rubenstein School of Environment and Natural Resources Faculty Publications Admixture Introgression Invasive species Range expansion Climate Solutions Climate text 2014 ftunivermont https://doi.org/10.1098/rsos.140202 2023-06-13T18:36:36Z Biological invasions offer unique opportunities to investigate evolutionary dynamics at the peripheries of expanding populations. Here, we examine genetic patterns associated with admixture between two distinct invasive lineages of the European green crab, Carcinus maenas L., independently introduced to the northwest Atlantic. Previous investigations based on mitochondrial DNA sequences demonstrated that larval dispersal driven by advective currents could explain observed southward displacement of an admixture zone between the two invasions. Comparison of published mitochondrial results with new nuclear data from nine microsatellite loci, however, reveals striking discordance in their introgression patterns. Specifically, introgression of mitochondrial genomes relative to nuclear background suggests that demographic processes such as sex-biased reproductive dynamics and population size imbalances—and not solely larval dispersal—play an important role in driving the evolution of the genetic cline. In particular, the unpredicted introgression of mitochondrial alleles against the direction of mean larval dispersal in the region is consistent with recent models invoking similar demographic processes to explain movements of genes into invading populations. These observations have important implications for understanding historical shifts in C. maenas range limits, and more generally for inferences of larval dispersal based on genetic data. Text Northwest Atlantic The University of Vermont: ScholarWorks @ UVM Royal Society Open Science 1 2 140202 |
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Open Polar |
collection |
The University of Vermont: ScholarWorks @ UVM |
op_collection_id |
ftunivermont |
language |
unknown |
topic |
Admixture Introgression Invasive species Range expansion Climate Solutions Climate |
spellingShingle |
Admixture Introgression Invasive species Range expansion Climate Solutions Climate Darling, John A. Tsai, Yi Hsin Erica Blakeslee, April M.H. Roman, Joe Are genes faster than crabs? Mitochondrial introgression exceeds larval dispersal during population expansion of the invasive crab Carcinus maenas |
topic_facet |
Admixture Introgression Invasive species Range expansion Climate Solutions Climate |
description |
Biological invasions offer unique opportunities to investigate evolutionary dynamics at the peripheries of expanding populations. Here, we examine genetic patterns associated with admixture between two distinct invasive lineages of the European green crab, Carcinus maenas L., independently introduced to the northwest Atlantic. Previous investigations based on mitochondrial DNA sequences demonstrated that larval dispersal driven by advective currents could explain observed southward displacement of an admixture zone between the two invasions. Comparison of published mitochondrial results with new nuclear data from nine microsatellite loci, however, reveals striking discordance in their introgression patterns. Specifically, introgression of mitochondrial genomes relative to nuclear background suggests that demographic processes such as sex-biased reproductive dynamics and population size imbalances—and not solely larval dispersal—play an important role in driving the evolution of the genetic cline. In particular, the unpredicted introgression of mitochondrial alleles against the direction of mean larval dispersal in the region is consistent with recent models invoking similar demographic processes to explain movements of genes into invading populations. These observations have important implications for understanding historical shifts in C. maenas range limits, and more generally for inferences of larval dispersal based on genetic data. |
format |
Text |
author |
Darling, John A. Tsai, Yi Hsin Erica Blakeslee, April M.H. Roman, Joe |
author_facet |
Darling, John A. Tsai, Yi Hsin Erica Blakeslee, April M.H. Roman, Joe |
author_sort |
Darling, John A. |
title |
Are genes faster than crabs? Mitochondrial introgression exceeds larval dispersal during population expansion of the invasive crab Carcinus maenas |
title_short |
Are genes faster than crabs? Mitochondrial introgression exceeds larval dispersal during population expansion of the invasive crab Carcinus maenas |
title_full |
Are genes faster than crabs? Mitochondrial introgression exceeds larval dispersal during population expansion of the invasive crab Carcinus maenas |
title_fullStr |
Are genes faster than crabs? Mitochondrial introgression exceeds larval dispersal during population expansion of the invasive crab Carcinus maenas |
title_full_unstemmed |
Are genes faster than crabs? Mitochondrial introgression exceeds larval dispersal during population expansion of the invasive crab Carcinus maenas |
title_sort |
are genes faster than crabs? mitochondrial introgression exceeds larval dispersal during population expansion of the invasive crab carcinus maenas |
publisher |
UVM ScholarWorks |
publishDate |
2014 |
url |
https://scholarworks.uvm.edu/rsfac/131 https://doi.org/10.1098/rsos.140202 https://scholarworks.uvm.edu/context/rsfac/article/1131/viewcontent/Roman2014a.pdf |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Rubenstein School of Environment and Natural Resources Faculty Publications |
op_relation |
https://scholarworks.uvm.edu/rsfac/131 doi:10.1098/rsos.140202 https://scholarworks.uvm.edu/context/rsfac/article/1131/viewcontent/Roman2014a.pdf |
op_rights |
© 2014 The Authors. http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1098/rsos.140202 |
container_title |
Royal Society Open Science |
container_volume |
1 |
container_issue |
2 |
container_start_page |
140202 |
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1770273142689759232 |