Cargando…
Geographic Patterns of Genetic Variation in a Broadly Distributed Marine Vertebrate: New Insights into Loggerhead Turtle Stock Structure from Expanded Mitochondrial DNA Sequences
Previous genetic studies have demonstrated that natal homing shapes the stock structure of marine turtle nesting populations. However, widespread sharing of common haplotypes based on short segments of the mitochondrial control region often limits resolution of the demographic connectivity of popula...
Autores principales: | , , , , , , , , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2014
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3900438/ https://www.ncbi.nlm.nih.gov/pubmed/24465810 http://dx.doi.org/10.1371/journal.pone.0085956 |
_version_ | 1782300693484273664 |
---|---|
author | Shamblin, Brian M. Bolten, Alan B. Abreu-Grobois, F. Alberto Bjorndal, Karen A. Cardona, Luis Carreras, Carlos Clusa, Marcel Monzón-Argüello, Catalina Nairn, Campbell J. Nielsen, Janne T. Nel, Ronel Soares, Luciano S. Stewart, Kelly R. Vilaça, Sibelle T. Türkozan, Oguz Yilmaz, Can Dutton, Peter H. |
author_facet | Shamblin, Brian M. Bolten, Alan B. Abreu-Grobois, F. Alberto Bjorndal, Karen A. Cardona, Luis Carreras, Carlos Clusa, Marcel Monzón-Argüello, Catalina Nairn, Campbell J. Nielsen, Janne T. Nel, Ronel Soares, Luciano S. Stewart, Kelly R. Vilaça, Sibelle T. Türkozan, Oguz Yilmaz, Can Dutton, Peter H. |
author_sort | Shamblin, Brian M. |
collection | PubMed |
description | Previous genetic studies have demonstrated that natal homing shapes the stock structure of marine turtle nesting populations. However, widespread sharing of common haplotypes based on short segments of the mitochondrial control region often limits resolution of the demographic connectivity of populations. Recent studies employing longer control region sequences to resolve haplotype sharing have focused on regional assessments of genetic structure and phylogeography. Here we synthesize available control region sequences for loggerhead turtles from the Mediterranean Sea, Atlantic, and western Indian Ocean basins. These data represent six of the nine globally significant regional management units (RMUs) for the species and include novel sequence data from Brazil, Cape Verde, South Africa and Oman. Genetic tests of differentiation among 42 rookeries represented by short sequences (380 bp haplotypes from 3,486 samples) and 40 rookeries represented by long sequences (∼800 bp haplotypes from 3,434 samples) supported the distinction of the six RMUs analyzed as well as recognition of at least 18 demographically independent management units (MUs) with respect to female natal homing. A total of 59 haplotypes were resolved. These haplotypes belonged to two highly divergent global lineages, with haplogroup I represented primarily by CC-A1, CC-A4, and CC-A11 variants and haplogroup II represented by CC-A2 and derived variants. Geographic distribution patterns of haplogroup II haplotypes and the nested position of CC-A11.6 from Oman among the Atlantic haplotypes invoke recent colonization of the Indian Ocean from the Atlantic for both global lineages. The haplotypes we confirmed for western Indian Ocean RMUs allow reinterpretation of previous mixed stock analysis and further suggest that contemporary migratory connectivity between the Indian and Atlantic Oceans occurs on a broader scale than previously hypothesized. This study represents a valuable model for conducting comprehensive international cooperative data management and research in marine ecology. |
format | Online Article Text |
id | pubmed-3900438 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-39004382014-01-24 Geographic Patterns of Genetic Variation in a Broadly Distributed Marine Vertebrate: New Insights into Loggerhead Turtle Stock Structure from Expanded Mitochondrial DNA Sequences Shamblin, Brian M. Bolten, Alan B. Abreu-Grobois, F. Alberto Bjorndal, Karen A. Cardona, Luis Carreras, Carlos Clusa, Marcel Monzón-Argüello, Catalina Nairn, Campbell J. Nielsen, Janne T. Nel, Ronel Soares, Luciano S. Stewart, Kelly R. Vilaça, Sibelle T. Türkozan, Oguz Yilmaz, Can Dutton, Peter H. PLoS One Research Article Previous genetic studies have demonstrated that natal homing shapes the stock structure of marine turtle nesting populations. However, widespread sharing of common haplotypes based on short segments of the mitochondrial control region often limits resolution of the demographic connectivity of populations. Recent studies employing longer control region sequences to resolve haplotype sharing have focused on regional assessments of genetic structure and phylogeography. Here we synthesize available control region sequences for loggerhead turtles from the Mediterranean Sea, Atlantic, and western Indian Ocean basins. These data represent six of the nine globally significant regional management units (RMUs) for the species and include novel sequence data from Brazil, Cape Verde, South Africa and Oman. Genetic tests of differentiation among 42 rookeries represented by short sequences (380 bp haplotypes from 3,486 samples) and 40 rookeries represented by long sequences (∼800 bp haplotypes from 3,434 samples) supported the distinction of the six RMUs analyzed as well as recognition of at least 18 demographically independent management units (MUs) with respect to female natal homing. A total of 59 haplotypes were resolved. These haplotypes belonged to two highly divergent global lineages, with haplogroup I represented primarily by CC-A1, CC-A4, and CC-A11 variants and haplogroup II represented by CC-A2 and derived variants. Geographic distribution patterns of haplogroup II haplotypes and the nested position of CC-A11.6 from Oman among the Atlantic haplotypes invoke recent colonization of the Indian Ocean from the Atlantic for both global lineages. The haplotypes we confirmed for western Indian Ocean RMUs allow reinterpretation of previous mixed stock analysis and further suggest that contemporary migratory connectivity between the Indian and Atlantic Oceans occurs on a broader scale than previously hypothesized. This study represents a valuable model for conducting comprehensive international cooperative data management and research in marine ecology. Public Library of Science 2014-01-23 /pmc/articles/PMC3900438/ /pubmed/24465810 http://dx.doi.org/10.1371/journal.pone.0085956 Text en https://creativecommons.org/publicdomain/zero/1.0/ This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration, which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. |
spellingShingle | Research Article Shamblin, Brian M. Bolten, Alan B. Abreu-Grobois, F. Alberto Bjorndal, Karen A. Cardona, Luis Carreras, Carlos Clusa, Marcel Monzón-Argüello, Catalina Nairn, Campbell J. Nielsen, Janne T. Nel, Ronel Soares, Luciano S. Stewart, Kelly R. Vilaça, Sibelle T. Türkozan, Oguz Yilmaz, Can Dutton, Peter H. Geographic Patterns of Genetic Variation in a Broadly Distributed Marine Vertebrate: New Insights into Loggerhead Turtle Stock Structure from Expanded Mitochondrial DNA Sequences |
title | Geographic Patterns of Genetic Variation in a Broadly Distributed Marine Vertebrate: New Insights into Loggerhead Turtle Stock Structure from Expanded Mitochondrial DNA Sequences |
title_full | Geographic Patterns of Genetic Variation in a Broadly Distributed Marine Vertebrate: New Insights into Loggerhead Turtle Stock Structure from Expanded Mitochondrial DNA Sequences |
title_fullStr | Geographic Patterns of Genetic Variation in a Broadly Distributed Marine Vertebrate: New Insights into Loggerhead Turtle Stock Structure from Expanded Mitochondrial DNA Sequences |
title_full_unstemmed | Geographic Patterns of Genetic Variation in a Broadly Distributed Marine Vertebrate: New Insights into Loggerhead Turtle Stock Structure from Expanded Mitochondrial DNA Sequences |
title_short | Geographic Patterns of Genetic Variation in a Broadly Distributed Marine Vertebrate: New Insights into Loggerhead Turtle Stock Structure from Expanded Mitochondrial DNA Sequences |
title_sort | geographic patterns of genetic variation in a broadly distributed marine vertebrate: new insights into loggerhead turtle stock structure from expanded mitochondrial dna sequences |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3900438/ https://www.ncbi.nlm.nih.gov/pubmed/24465810 http://dx.doi.org/10.1371/journal.pone.0085956 |
work_keys_str_mv | AT shamblinbrianm geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT boltenalanb geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT abreugroboisfalberto geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT bjorndalkarena geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT cardonaluis geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT carrerascarlos geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT clusamarcel geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT monzonarguellocatalina geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT nairncampbellj geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT nielsenjannet geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT nelronel geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT soareslucianos geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT stewartkellyr geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT vilacasibellet geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT turkozanoguz geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT yilmazcan geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences AT duttonpeterh geographicpatternsofgeneticvariationinabroadlydistributedmarinevertebratenewinsightsintologgerheadturtlestockstructurefromexpandedmitochondrialdnasequences |