Cargando…

Genetic structure, phylogeography, and demography of Anadara tuberculosa (Bivalvia) from East Pacific as revealed by mtDNA: Implications to conservation

Wild populations of the pustulose ark, Anadara tuberculosa (Bivalvia), an emblematic species of the East Pacific mangrove ecosystem declined in South American countries (Colombia, Ecuador, and Peru) mainly due to overharvesting and habitat loss or degradation. Understanding the genetic aspects of ge...

Descripción completa

Detalles Bibliográficos
Autores principales: Diringer, Benoit, Pretell, Krizia, Avellan, Ricardo, Chanta, Cesar, Cedeño, Virna, Gentile, Gabriele
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6476791/
https://www.ncbi.nlm.nih.gov/pubmed/31031914
http://dx.doi.org/10.1002/ece3.4937
_version_ 1783412931733487616
author Diringer, Benoit
Pretell, Krizia
Avellan, Ricardo
Chanta, Cesar
Cedeño, Virna
Gentile, Gabriele
author_facet Diringer, Benoit
Pretell, Krizia
Avellan, Ricardo
Chanta, Cesar
Cedeño, Virna
Gentile, Gabriele
author_sort Diringer, Benoit
collection PubMed
description Wild populations of the pustulose ark, Anadara tuberculosa (Bivalvia), an emblematic species of the East Pacific mangrove ecosystem declined in South American countries (Colombia, Ecuador, and Peru) mainly due to overharvesting and habitat loss or degradation. Understanding the genetic aspects of geographic variations and population structure of A. tuberculosa, currently unknown, appears as a priority to fishery authorities in order to elaborate integrated and collaborative conservation policies for fishery management, aquaculture, and stock enhancement programs. We used mtDNA sequence data to investigate haplotype diversity, genetic structure, and demography of A. tuberculosa. Results indicate genetic homogeneity of populations distributed north and south of the equator, respectively. However, statistically significant differentiation emerged between northern and southern populations with pairwise ф (ST) values ranging between 0.036 and 0.092. The oceanic current system acting in the area (Panama Current and Humboldt Current) might play a role in limiting the larval dispersal of the species, still poorly understood. Demography reconstruction supported recent population expansion, possibly started after last glacial maximum. Our results would suggest separate and independent management of populations north and south of the equator.
format Online
Article
Text
id pubmed-6476791
institution National Center for Biotechnology Information
language English
publishDate 2019
publisher John Wiley and Sons Inc.
record_format MEDLINE/PubMed
spelling pubmed-64767912019-04-26 Genetic structure, phylogeography, and demography of Anadara tuberculosa (Bivalvia) from East Pacific as revealed by mtDNA: Implications to conservation Diringer, Benoit Pretell, Krizia Avellan, Ricardo Chanta, Cesar Cedeño, Virna Gentile, Gabriele Ecol Evol Original Research Wild populations of the pustulose ark, Anadara tuberculosa (Bivalvia), an emblematic species of the East Pacific mangrove ecosystem declined in South American countries (Colombia, Ecuador, and Peru) mainly due to overharvesting and habitat loss or degradation. Understanding the genetic aspects of geographic variations and population structure of A. tuberculosa, currently unknown, appears as a priority to fishery authorities in order to elaborate integrated and collaborative conservation policies for fishery management, aquaculture, and stock enhancement programs. We used mtDNA sequence data to investigate haplotype diversity, genetic structure, and demography of A. tuberculosa. Results indicate genetic homogeneity of populations distributed north and south of the equator, respectively. However, statistically significant differentiation emerged between northern and southern populations with pairwise ф (ST) values ranging between 0.036 and 0.092. The oceanic current system acting in the area (Panama Current and Humboldt Current) might play a role in limiting the larval dispersal of the species, still poorly understood. Demography reconstruction supported recent population expansion, possibly started after last glacial maximum. Our results would suggest separate and independent management of populations north and south of the equator. John Wiley and Sons Inc. 2019-04-04 /pmc/articles/PMC6476791/ /pubmed/31031914 http://dx.doi.org/10.1002/ece3.4937 Text en © 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Research
Diringer, Benoit
Pretell, Krizia
Avellan, Ricardo
Chanta, Cesar
Cedeño, Virna
Gentile, Gabriele
Genetic structure, phylogeography, and demography of Anadara tuberculosa (Bivalvia) from East Pacific as revealed by mtDNA: Implications to conservation
title Genetic structure, phylogeography, and demography of Anadara tuberculosa (Bivalvia) from East Pacific as revealed by mtDNA: Implications to conservation
title_full Genetic structure, phylogeography, and demography of Anadara tuberculosa (Bivalvia) from East Pacific as revealed by mtDNA: Implications to conservation
title_fullStr Genetic structure, phylogeography, and demography of Anadara tuberculosa (Bivalvia) from East Pacific as revealed by mtDNA: Implications to conservation
title_full_unstemmed Genetic structure, phylogeography, and demography of Anadara tuberculosa (Bivalvia) from East Pacific as revealed by mtDNA: Implications to conservation
title_short Genetic structure, phylogeography, and demography of Anadara tuberculosa (Bivalvia) from East Pacific as revealed by mtDNA: Implications to conservation
title_sort genetic structure, phylogeography, and demography of anadara tuberculosa (bivalvia) from east pacific as revealed by mtdna: implications to conservation
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6476791/
https://www.ncbi.nlm.nih.gov/pubmed/31031914
http://dx.doi.org/10.1002/ece3.4937
work_keys_str_mv AT diringerbenoit geneticstructurephylogeographyanddemographyofanadaratuberculosabivalviafromeastpacificasrevealedbymtdnaimplicationstoconservation
AT pretellkrizia geneticstructurephylogeographyanddemographyofanadaratuberculosabivalviafromeastpacificasrevealedbymtdnaimplicationstoconservation
AT avellanricardo geneticstructurephylogeographyanddemographyofanadaratuberculosabivalviafromeastpacificasrevealedbymtdnaimplicationstoconservation
AT chantacesar geneticstructurephylogeographyanddemographyofanadaratuberculosabivalviafromeastpacificasrevealedbymtdnaimplicationstoconservation
AT cedenovirna geneticstructurephylogeographyanddemographyofanadaratuberculosabivalviafromeastpacificasrevealedbymtdnaimplicationstoconservation
AT gentilegabriele geneticstructurephylogeographyanddemographyofanadaratuberculosabivalviafromeastpacificasrevealedbymtdnaimplicationstoconservation