Regional Genetic Structure and Genetic Founder Effects in the Invasive Lionfish: Comparing the Gulf of Mexico, Caribbean and North Atlantic
Indo-Pacific lionfish (Pterois volitans and P. miles) recently invaded Western Atlantic waters, rapidly spreading through the Caribbean and Gulf of Mexico (GoM). Previous genetic analyses using the mitochondrial d-loop determined that populations in the Western North Atlantic (NA) region have up to...
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ftsouthmissispun:oai:aquila.usm.edu:fac_pubs-19146 2023-07-30T04:05:11+02:00 Regional Genetic Structure and Genetic Founder Effects in the Invasive Lionfish: Comparing the Gulf of Mexico, Caribbean and North Atlantic Johnson, John Bird, Christopher E. Johnston, Michelle A. Fogg, Alexander Q. Hogan, J. Derek 2016-10-01T07:00:00Z https://aquila.usm.edu/fac_pubs/17837 https://doi.org/10.1007/s00227-016-2981-0 unknown The Aquila Digital Community https://aquila.usm.edu/fac_pubs/17837 https://doi.org/10.1007/s00227-016-2981-0 Faculty Publications text 2016 ftsouthmissispun https://doi.org/10.1007/s00227-016-2981-0 2023-07-15T18:54:07Z Indo-Pacific lionfish (Pterois volitans and P. miles) recently invaded Western Atlantic waters, rapidly spreading through the Caribbean and Gulf of Mexico (GoM). Previous genetic analyses using the mitochondrial d-loop determined that populations in the Western North Atlantic (NA) region have up to nine haplotypes, whereas Caribbean populations contain four of the North Atlantic haplotypes. The genetic composition of GoM populations, reported here for the first time, could lend insight into the pathway of dispersal into the GoM and better understanding of the biogeography of this recent invader. Here, we determined the genetic composition of lionfish throughout the GoM and compared haplotype composition to Caribbean and North Atlantic regions. We found that GoM samples contained only three d-loop haplotypes that are common in the Caribbean and North Atlantic. The genetic structure differed significantly among the three regions (AMOVA:Φ CT = 0.062; p = 0.001), but we found no differences between locations within regions (AMOVA:Φ SC = 0.005; p = 0.092). The composition of GoM samples most closely matches the composition of Caribbean samples indicating that Caribbean populations are the likely source of the GoM populations. As each region was successively invaded, a drop in haplotype diversity and changes in haplotype frequencies occurred indicating dispersal limitation across basin boundaries and founder effects within each basin. The lack of differentiation within regions indicates rapid population growth and unfettered dispersal within basins after initial colonization. We find no evidence of secondary invasions within samples. With well-established populations, the probability of detecting a secondary invasion is minuscule. Text North Atlantic The University of Southern Mississippi: The Aquila Digital Community Pacific Marine Biology 163 10 |
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The University of Southern Mississippi: The Aquila Digital Community |
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ftsouthmissispun |
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description |
Indo-Pacific lionfish (Pterois volitans and P. miles) recently invaded Western Atlantic waters, rapidly spreading through the Caribbean and Gulf of Mexico (GoM). Previous genetic analyses using the mitochondrial d-loop determined that populations in the Western North Atlantic (NA) region have up to nine haplotypes, whereas Caribbean populations contain four of the North Atlantic haplotypes. The genetic composition of GoM populations, reported here for the first time, could lend insight into the pathway of dispersal into the GoM and better understanding of the biogeography of this recent invader. Here, we determined the genetic composition of lionfish throughout the GoM and compared haplotype composition to Caribbean and North Atlantic regions. We found that GoM samples contained only three d-loop haplotypes that are common in the Caribbean and North Atlantic. The genetic structure differed significantly among the three regions (AMOVA:Φ CT = 0.062; p = 0.001), but we found no differences between locations within regions (AMOVA:Φ SC = 0.005; p = 0.092). The composition of GoM samples most closely matches the composition of Caribbean samples indicating that Caribbean populations are the likely source of the GoM populations. As each region was successively invaded, a drop in haplotype diversity and changes in haplotype frequencies occurred indicating dispersal limitation across basin boundaries and founder effects within each basin. The lack of differentiation within regions indicates rapid population growth and unfettered dispersal within basins after initial colonization. We find no evidence of secondary invasions within samples. With well-established populations, the probability of detecting a secondary invasion is minuscule. |
format |
Text |
author |
Johnson, John Bird, Christopher E. Johnston, Michelle A. Fogg, Alexander Q. Hogan, J. Derek |
spellingShingle |
Johnson, John Bird, Christopher E. Johnston, Michelle A. Fogg, Alexander Q. Hogan, J. Derek Regional Genetic Structure and Genetic Founder Effects in the Invasive Lionfish: Comparing the Gulf of Mexico, Caribbean and North Atlantic |
author_facet |
Johnson, John Bird, Christopher E. Johnston, Michelle A. Fogg, Alexander Q. Hogan, J. Derek |
author_sort |
Johnson, John |
title |
Regional Genetic Structure and Genetic Founder Effects in the Invasive Lionfish: Comparing the Gulf of Mexico, Caribbean and North Atlantic |
title_short |
Regional Genetic Structure and Genetic Founder Effects in the Invasive Lionfish: Comparing the Gulf of Mexico, Caribbean and North Atlantic |
title_full |
Regional Genetic Structure and Genetic Founder Effects in the Invasive Lionfish: Comparing the Gulf of Mexico, Caribbean and North Atlantic |
title_fullStr |
Regional Genetic Structure and Genetic Founder Effects in the Invasive Lionfish: Comparing the Gulf of Mexico, Caribbean and North Atlantic |
title_full_unstemmed |
Regional Genetic Structure and Genetic Founder Effects in the Invasive Lionfish: Comparing the Gulf of Mexico, Caribbean and North Atlantic |
title_sort |
regional genetic structure and genetic founder effects in the invasive lionfish: comparing the gulf of mexico, caribbean and north atlantic |
publisher |
The Aquila Digital Community |
publishDate |
2016 |
url |
https://aquila.usm.edu/fac_pubs/17837 https://doi.org/10.1007/s00227-016-2981-0 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Faculty Publications |
op_relation |
https://aquila.usm.edu/fac_pubs/17837 https://doi.org/10.1007/s00227-016-2981-0 |
op_doi |
https://doi.org/10.1007/s00227-016-2981-0 |
container_title |
Marine Biology |
container_volume |
163 |
container_issue |
10 |
_version_ |
1772816943786491904 |