Genetic variability in the Magdalena River turtle, Podocnemis lewyana (Duméril 1852) in the Mompox Depression, Colombia

ABSTRACT: Two populations of the endangered Magdalena River turtle, Podocnemis lewyana, separated by 55 km in the Mom-pos Depression were sampled to quantify levels of genetic variation and inspect for evidence of genetic structure. Allozyme analyses resolved 22 presumptive gene loci, but only one r...

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Autores:
Restrepo Isaza, Adriana
Bock Garnier, Brian Carl
Páez Nieto, Vivian Patricia
Tipo de recurso:
Article of investigation
Fecha de publicación:
2008
Institución:
Universidad de Antioquia
Repositorio:
Repositorio UdeA
Idioma:
eng
OAI Identifier:
oai:bibliotecadigital.udea.edu.co:10495/21215
Acceso en línea:
http://hdl.handle.net/10495/21215
https://revistas.udea.edu.co/index.php/actbio/article/view/4741
Palabra clave:
Allozymes
Alozimas
Genetic variability
Variación genética
Population structure
Estructura de la población
Podocnemididae
Podocnemis lewyana
http://aims.fao.org/aos/agrovoc/c_24813
http://aims.fao.org/aos/agrovoc/c_15975
http://aims.fao.org/aos/agrovoc/c_6115
Rights
openAccess
License
http://creativecommons.org/licenses/by-nc-sa/2.5/co/
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oai_identifier_str oai:bibliotecadigital.udea.edu.co:10495/21215
network_acronym_str UDEA2
network_name_str Repositorio UdeA
repository_id_str
dc.title.spa.fl_str_mv Genetic variability in the Magdalena River turtle, Podocnemis lewyana (Duméril 1852) in the Mompox Depression, Colombia
dc.title.alternative.spa.fl_str_mv Variabilidad genética de la tortuga del Río Magdalena, Podocnemis lewyana (Duméril, 1852), en la depresión momposina, Colombia
title Genetic variability in the Magdalena River turtle, Podocnemis lewyana (Duméril 1852) in the Mompox Depression, Colombia
spellingShingle Genetic variability in the Magdalena River turtle, Podocnemis lewyana (Duméril 1852) in the Mompox Depression, Colombia
Allozymes
Alozimas
Genetic variability
Variación genética
Population structure
Estructura de la población
Podocnemididae
Podocnemis lewyana
http://aims.fao.org/aos/agrovoc/c_24813
http://aims.fao.org/aos/agrovoc/c_15975
http://aims.fao.org/aos/agrovoc/c_6115
title_short Genetic variability in the Magdalena River turtle, Podocnemis lewyana (Duméril 1852) in the Mompox Depression, Colombia
title_full Genetic variability in the Magdalena River turtle, Podocnemis lewyana (Duméril 1852) in the Mompox Depression, Colombia
title_fullStr Genetic variability in the Magdalena River turtle, Podocnemis lewyana (Duméril 1852) in the Mompox Depression, Colombia
title_full_unstemmed Genetic variability in the Magdalena River turtle, Podocnemis lewyana (Duméril 1852) in the Mompox Depression, Colombia
title_sort Genetic variability in the Magdalena River turtle, Podocnemis lewyana (Duméril 1852) in the Mompox Depression, Colombia
dc.creator.fl_str_mv Restrepo Isaza, Adriana
Bock Garnier, Brian Carl
Páez Nieto, Vivian Patricia
dc.contributor.author.none.fl_str_mv Restrepo Isaza, Adriana
Bock Garnier, Brian Carl
Páez Nieto, Vivian Patricia
dc.subject.agrovoc.none.fl_str_mv Allozymes
Alozimas
Genetic variability
Variación genética
Population structure
Estructura de la población
topic Allozymes
Alozimas
Genetic variability
Variación genética
Population structure
Estructura de la población
Podocnemididae
Podocnemis lewyana
http://aims.fao.org/aos/agrovoc/c_24813
http://aims.fao.org/aos/agrovoc/c_15975
http://aims.fao.org/aos/agrovoc/c_6115
dc.subject.proposal.spa.fl_str_mv Podocnemididae
Podocnemis lewyana
dc.subject.agrovocuri.none.fl_str_mv http://aims.fao.org/aos/agrovoc/c_24813
http://aims.fao.org/aos/agrovoc/c_15975
http://aims.fao.org/aos/agrovoc/c_6115
description ABSTRACT: Two populations of the endangered Magdalena River turtle, Podocnemis lewyana, separated by 55 km in the Mom-pos Depression were sampled to quantify levels of genetic variation and inspect for evidence of genetic structure. Allozyme analyses resolved 22 presumptive gene loci, but only one resulted polymorphic. Genotype proportions at this locus departed from those expected under Hardy-Weinberg equilibrium, showing heterozygote deficiencies in both populations. However, allele frequencies at the locus did not differ between the two sites. The level of genetic variability documented is one of the lowest yet reported for a turtle species, and may reflect either a historical or recent bottleneck event. The lack of evidence for genetic structure suggests gene flow among the sites, at least historically, but the heterozygote deficiencies at each site also imply that inbreeding may be occurring presently within each deme.
publishDate 2008
dc.date.issued.none.fl_str_mv 2008
dc.date.accessioned.none.fl_str_mv 2021-07-28T15:47:36Z
dc.date.available.none.fl_str_mv 2021-07-28T15:47:36Z
dc.type.spa.fl_str_mv info:eu-repo/semantics/article
dc.type.coarversion.fl_str_mv http://purl.org/coar/version/c_970fb48d4fbd8a85
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dc.type.local.spa.fl_str_mv Artículo de investigación
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dc.identifier.citation.spa.fl_str_mv Restrepo, A., Bock, B., & Páez, V. (2008). Variabilidad genética de la tortuga del Río Magdalena, Podocnemis lewyana (Duméril, 1852), en la depresión momposina, Colombia. Actualidades Biológicas, 30(89), 151-159. https://revistas.udea.edu.co/index.php/actbio/article/view/4741
dc.identifier.issn.none.fl_str_mv 0304-3584
dc.identifier.uri.none.fl_str_mv http://hdl.handle.net/10495/21215
dc.identifier.eissn.none.fl_str_mv 2145-7166
dc.identifier.url.spa.fl_str_mv https://revistas.udea.edu.co/index.php/actbio/article/view/4741
identifier_str_mv Restrepo, A., Bock, B., & Páez, V. (2008). Variabilidad genética de la tortuga del Río Magdalena, Podocnemis lewyana (Duméril, 1852), en la depresión momposina, Colombia. Actualidades Biológicas, 30(89), 151-159. https://revistas.udea.edu.co/index.php/actbio/article/view/4741
0304-3584
2145-7166
url http://hdl.handle.net/10495/21215
https://revistas.udea.edu.co/index.php/actbio/article/view/4741
dc.language.iso.spa.fl_str_mv eng
language eng
dc.relation.ispartofjournalabbrev.spa.fl_str_mv Actual. Biol.
dc.rights.spa.fl_str_mv info:eu-repo/semantics/openAccess
dc.rights.uri.*.fl_str_mv http://creativecommons.org/licenses/by-nc-sa/2.5/co/
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dc.rights.creativecommons.spa.fl_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/2.5/co/
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dc.format.extent.spa.fl_str_mv 9
dc.format.mimetype.spa.fl_str_mv application/pdf
dc.publisher.spa.fl_str_mv Universidad de Antioquia, Facultad de Ciencias Exactas y Naturales, Instituto de Biología
dc.publisher.group.spa.fl_str_mv Grupo Herpetológico de Antioquia
dc.publisher.place.spa.fl_str_mv Medellín, Colombia
institution Universidad de Antioquia
bitstream.url.fl_str_mv http://bibliotecadigital.udea.edu.co/bitstream/10495/21215/2/license_rdf
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spelling Restrepo Isaza, AdrianaBock Garnier, Brian CarlPáez Nieto, Vivian Patricia2021-07-28T15:47:36Z2021-07-28T15:47:36Z2008Restrepo, A., Bock, B., & Páez, V. (2008). Variabilidad genética de la tortuga del Río Magdalena, Podocnemis lewyana (Duméril, 1852), en la depresión momposina, Colombia. Actualidades Biológicas, 30(89), 151-159. https://revistas.udea.edu.co/index.php/actbio/article/view/47410304-3584http://hdl.handle.net/10495/212152145-7166https://revistas.udea.edu.co/index.php/actbio/article/view/4741ABSTRACT: Two populations of the endangered Magdalena River turtle, Podocnemis lewyana, separated by 55 km in the Mom-pos Depression were sampled to quantify levels of genetic variation and inspect for evidence of genetic structure. Allozyme analyses resolved 22 presumptive gene loci, but only one resulted polymorphic. Genotype proportions at this locus departed from those expected under Hardy-Weinberg equilibrium, showing heterozygote deficiencies in both populations. However, allele frequencies at the locus did not differ between the two sites. The level of genetic variability documented is one of the lowest yet reported for a turtle species, and may reflect either a historical or recent bottleneck event. The lack of evidence for genetic structure suggests gene flow among the sites, at least historically, but the heterozygote deficiencies at each site also imply that inbreeding may be occurring presently within each deme.RESUMEN: Dos poblaciones de la tortuga amenazada, Podocnemis lewyana, en la Depresión Momposina, separadas por 55 km fueron evaluadas para cuantificar los niveles de variación genética e inspeccionar evidencias de estructura genética. Mediante un análisis de alozimas resolvimos 22 presuntivos loci genéticos, pero sólo uno resultó polimórfico. Las proporciones genotípicas en éste locus difirieron significativamente a las esperadas bajo el modelo Hardy-Weinberg, mostrando en las dos poblaciones una deficiencia de individuos heterocigotos. Además, no se encontraron diferencias en las frecuencias alélicas entre los dos sitios. El nivel de variabilidad genética documentada en este estudio es una de las más bajas reportadas para una especie de tortuga, y podría reflejar un evento de cuello de botella histórico o reciente. La falta de evidencia de estructura genética sugiere flujo genético entre los sitios, por lo menos históricamente, pero la deficiencia de individuos heterocigotos en ambos sitios podría implicar que ha ocurrido entrecruzamiento reciente dentro de cada deme.COL00073739application/pdfengUniversidad de Antioquia, Facultad de Ciencias Exactas y Naturales, Instituto de BiologíaGrupo Herpetológico de AntioquiaMedellín, Colombiainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_2df8fbb1https://purl.org/redcol/resource_type/ARTArtículo de investigaciónhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/2.5/co/http://purl.org/coar/access_right/c_abf2https://creativecommons.org/licenses/by-nc-sa/4.0/Genetic variability in the Magdalena River turtle, Podocnemis lewyana (Duméril 1852) in the Mompox Depression, ColombiaVariabilidad genética de la tortuga del Río Magdalena, Podocnemis lewyana (Duméril, 1852), en la depresión momposina, ColombiaAllozymesAlozimasGenetic variabilityVariación genéticaPopulation structureEstructura de la poblaciónPodocnemididaePodocnemis lewyanahttp://aims.fao.org/aos/agrovoc/c_24813http://aims.fao.org/aos/agrovoc/c_15975http://aims.fao.org/aos/agrovoc/c_6115Actual. Biol.Actualidades Biológicas1511593089CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-81051http://bibliotecadigital.udea.edu.co/bitstream/10495/21215/2/license_rdfe2060682c9c70d4d30c83c51448f4eedMD52ORIGINALRestrepoAdriana_2008_VariabilityTurtleMopox.pdfRestrepoAdriana_2008_VariabilityTurtleMopox.pdfArtículo de investigaciónapplication/pdf1019732http://bibliotecadigital.udea.edu.co/bitstream/10495/21215/1/RestrepoAdriana_2008_VariabilityTurtleMopox.pdf5695c23179521082b7b36fd6869849e9MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://bibliotecadigital.udea.edu.co/bitstream/10495/21215/3/license.txt8a4605be74aa9ea9d79846c1fba20a33MD5310495/21215oai:bibliotecadigital.udea.edu.co:10495/212152021-07-28 10:47:37.687Repositorio Institucional Universidad de Antioquiaandres.perez@udea.edu.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