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...
- 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:
- Alozimas
Allozymes
Variación genética
Genetic variability
Estructura de la población
Population structure
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
- https://creativecommons.org/licenses/by-nc-sa/4.0/
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| dc.title.spa.fl_str_mv |
Genetic variability in the Magdalena River turtle, Podocnemis lewyana (Duméril 1852) in the Mompox Depression, Colombia |
| dc.title.translated.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 Alozimas Allozymes Variación genética Genetic variability Estructura de la población Population structure 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.contributor.researchgroup.spa.fl_str_mv |
Grupo Herpetológico de Antioquia |
| dc.subject.agrovoc.none.fl_str_mv |
Alozimas Allozymes Variación genética Genetic variability Estructura de la población Population structure |
| topic |
Alozimas Allozymes Variación genética Genetic variability Estructura de la población Population structure 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 |
Artículo de investigación |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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https://purl.org/redcol/resource_type/ART |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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publishedVersion |
| 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 |
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eng |
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eng |
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Actual. Biol. |
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159 |
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89 |
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151 |
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30 |
| dc.relation.ispartofjournal.spa.fl_str_mv |
Actualidades Biológicas |
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https://creativecommons.org/licenses/by-nc-sa/4.0/ |
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http://creativecommons.org/licenses/by-nc-sa/2.5/co/ |
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info:eu-repo/semantics/openAccess |
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Universidad de Antioquia, Facultad de Ciencias Exactas y Naturales, Instituto de Biología |
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Medellín, Colombia |
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Universidad de Antioquia |
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Restrepo Isaza, AdrianaBock Garnier, Brian CarlPáez Nieto, Vivian PatriciaGrupo Herpetológico de Antioquia2021-07-28T15:47:36Z2021-07-28T15:47:36Z2008Restrepo, 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 BiologíaMedellín, Colombiahttps://creativecommons.org/licenses/by-nc-sa/4.0/http://creativecommons.org/licenses/by-nc-sa/2.5/co/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Genetic 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, ColombiaArtículo de investigaciónhttp://purl.org/coar/resource_type/c_2df8fbb1https://purl.org/redcol/resource_type/ARThttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAlozimasAllozymesVariación genéticaGenetic variabilityEstructura de la poblaciónPopulation structurePodocnemididaePodocnemis lewyanahttp://aims.fao.org/aos/agrovoc/c_24813http://aims.fao.org/aos/agrovoc/c_15975http://aims.fao.org/aos/agrovoc/c_6115Actual. 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