Conservation and management of Trachemys venusta venusta in Southern Mexico a genetic approach
The Meso-American slider turtle (Trachemys venusta) is a freshwater turtle that is widely distributed from Mexico to Colombia. Due to the overexploitation of populations of this species in Mexico, it has been placed within the “subject to special protection” category formulated by the Official Mexican Standard NOM-059-ECOL-2010. In the state of Tabasco, Mexico, Management Units for the Conservation of Wildlife (UMA) were created to reduce the impact of overexploitation of freshwater turtles bred in captivity. However, no genetic management plan was considered. The present study was carried out in an UMA in the state of Tabasco. We obtained the level of genetic diversity of the founder individuals of the UMA in order to develop a management plan which will optimize reproduction in the UMA. Genetic diversity was compared between captive (n=86) and wild (n=45) individuals using 14 microsatellite molecular markers. The genetic diversity parameter determined in this study was slightly higher for captive than for wild population (He=0.606 and He=0.594 respectively), reflecting the mix of genetic sources in captive group (founding individuals from different localities) and demonstrating that the captive population contains a diverse subset of alleles from representative populations. The analysis of genetic structure revealed a relationship between captive and wild populations, indicating the influence of the two principal river basins in this region on the populations structure of freshwater turtles. Finally, according to the results obtained from the relationship analysis, we recommend the use of 19 females and 13 males to constitute the appropriate breeding group, generating a potential of 247 dyads with no relationship. However, in order to improve breeding program and the genetic diversity of captive population, we suggest to introduce wild-caught individuals. These results are the first regarding genetic management in a Mexican UMA and demonstrate the importance of molecular approaches in the management and conservation of captive species.
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Language: | eng |
Subjects: | Unidades de Manejo para la Conservación de la Vida Silvestre, Trachemys venusta, Tortugas cautivas, Tortugas dulceacuícolas, Variación genética, Artfrosur, |
Online Access: | https://journals-sagepub-com.ezproxy.ecosur.mx/doi/pdf/10.1177/1940082920961506 |
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Unidades de Manejo para la Conservación de la Vida Silvestre Trachemys venusta Tortugas cautivas Tortugas dulceacuícolas Variación genética Artfrosur Unidades de Manejo para la Conservación de la Vida Silvestre Trachemys venusta Tortugas cautivas Tortugas dulceacuícolas Variación genética Artfrosur |
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Unidades de Manejo para la Conservación de la Vida Silvestre Trachemys venusta Tortugas cautivas Tortugas dulceacuícolas Variación genética Artfrosur Unidades de Manejo para la Conservación de la Vida Silvestre Trachemys venusta Tortugas cautivas Tortugas dulceacuícolas Variación genética Artfrosur Recino Reyes, Elsi Beatriz autora Lesher Gordillo, Julia María Doctora autora 16065 Machkour M'Rabet, Salima Doctora autora 12330 Gallardo Alvarez, Manuel Ignacio autor Zenteno Ruíz, Claudia Elena autora 14960 Olivera Gómez, León David autor 13899 Valdés Marín, Alejandra autora Gomez Carrasco, Guadalupe autora Ríos Rodas, Liliana autora Barragán Vázquez, María del Rosario autora Hernández Martínez, Raymundo autor Conservation and management of Trachemys venusta venusta in Southern Mexico a genetic approach |
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The Meso-American slider turtle (Trachemys venusta) is a freshwater turtle that is widely distributed from Mexico to Colombia. Due to the overexploitation of populations of this species in Mexico, it has been placed within the “subject to special protection” category formulated by the Official Mexican Standard NOM-059-ECOL-2010. In the state of Tabasco, Mexico, Management Units for the Conservation of Wildlife (UMA) were created to reduce the impact of overexploitation of freshwater turtles bred in captivity. However, no genetic management plan was considered. The present study was carried out in an UMA in the state of Tabasco. We obtained the level of genetic diversity of the founder individuals of the UMA in order to develop a management plan which will optimize reproduction in the UMA. Genetic diversity was compared between captive (n=86) and wild (n=45) individuals using 14 microsatellite molecular markers. The genetic diversity parameter determined in this study was slightly higher for captive than for wild population (He=0.606 and He=0.594 respectively), reflecting the mix of genetic sources in captive group (founding individuals from different localities) and demonstrating that the captive population contains a diverse subset of alleles from representative populations. The analysis of genetic structure revealed a relationship between captive and wild populations, indicating the influence of the two principal river basins in this region on the populations structure of freshwater turtles. Finally, according to the results obtained from the relationship analysis, we recommend the use of 19 females and 13 males to constitute the appropriate breeding group, generating a potential of 247 dyads with no relationship. However, in order to improve breeding program and the genetic diversity of captive population, we suggest to introduce wild-caught individuals. These results are the first regarding genetic management in a Mexican UMA and demonstrate the importance of molecular approaches in the management and conservation of captive species. |
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Unidades de Manejo para la Conservación de la Vida Silvestre Trachemys venusta Tortugas cautivas Tortugas dulceacuícolas Variación genética Artfrosur |
author |
Recino Reyes, Elsi Beatriz autora Lesher Gordillo, Julia María Doctora autora 16065 Machkour M'Rabet, Salima Doctora autora 12330 Gallardo Alvarez, Manuel Ignacio autor Zenteno Ruíz, Claudia Elena autora 14960 Olivera Gómez, León David autor 13899 Valdés Marín, Alejandra autora Gomez Carrasco, Guadalupe autora Ríos Rodas, Liliana autora Barragán Vázquez, María del Rosario autora Hernández Martínez, Raymundo autor |
author_facet |
Recino Reyes, Elsi Beatriz autora Lesher Gordillo, Julia María Doctora autora 16065 Machkour M'Rabet, Salima Doctora autora 12330 Gallardo Alvarez, Manuel Ignacio autor Zenteno Ruíz, Claudia Elena autora 14960 Olivera Gómez, León David autor 13899 Valdés Marín, Alejandra autora Gomez Carrasco, Guadalupe autora Ríos Rodas, Liliana autora Barragán Vázquez, María del Rosario autora Hernández Martínez, Raymundo autor |
author_sort |
Recino Reyes, Elsi Beatriz autora |
title |
Conservation and management of Trachemys venusta venusta in Southern Mexico a genetic approach |
title_short |
Conservation and management of Trachemys venusta venusta in Southern Mexico a genetic approach |
title_full |
Conservation and management of Trachemys venusta venusta in Southern Mexico a genetic approach |
title_fullStr |
Conservation and management of Trachemys venusta venusta in Southern Mexico a genetic approach |
title_full_unstemmed |
Conservation and management of Trachemys venusta venusta in Southern Mexico a genetic approach |
title_sort |
conservation and management of trachemys venusta venusta in southern mexico a genetic approach |
url |
https://journals-sagepub-com.ezproxy.ecosur.mx/doi/pdf/10.1177/1940082920961506 |
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KOHA-OAI-ECOSUR:611102024-03-12T12:34:55ZConservation and management of Trachemys venusta venusta in Southern Mexico a genetic approach Recino Reyes, Elsi Beatriz autora Lesher Gordillo, Julia María Doctora autora 16065 Machkour M'Rabet, Salima Doctora autora 12330 Gallardo Alvarez, Manuel Ignacio autor Zenteno Ruíz, Claudia Elena autora 14960 Olivera Gómez, León David autor 13899 Valdés Marín, Alejandra autora Gomez Carrasco, Guadalupe autora Ríos Rodas, Liliana autora Barragán Vázquez, María del Rosario autora Hernández Martínez, Raymundo autor textengThe Meso-American slider turtle (Trachemys venusta) is a freshwater turtle that is widely distributed from Mexico to Colombia. Due to the overexploitation of populations of this species in Mexico, it has been placed within the “subject to special protection” category formulated by the Official Mexican Standard NOM-059-ECOL-2010. In the state of Tabasco, Mexico, Management Units for the Conservation of Wildlife (UMA) were created to reduce the impact of overexploitation of freshwater turtles bred in captivity. However, no genetic management plan was considered. The present study was carried out in an UMA in the state of Tabasco. We obtained the level of genetic diversity of the founder individuals of the UMA in order to develop a management plan which will optimize reproduction in the UMA. Genetic diversity was compared between captive (n=86) and wild (n=45) individuals using 14 microsatellite molecular markers. The genetic diversity parameter determined in this study was slightly higher for captive than for wild population (He=0.606 and He=0.594 respectively), reflecting the mix of genetic sources in captive group (founding individuals from different localities) and demonstrating that the captive population contains a diverse subset of alleles from representative populations. The analysis of genetic structure revealed a relationship between captive and wild populations, indicating the influence of the two principal river basins in this region on the populations structure of freshwater turtles. Finally, according to the results obtained from the relationship analysis, we recommend the use of 19 females and 13 males to constitute the appropriate breeding group, generating a potential of 247 dyads with no relationship. However, in order to improve breeding program and the genetic diversity of captive population, we suggest to introduce wild-caught individuals. These results are the first regarding genetic management in a Mexican UMA and demonstrate the importance of molecular approaches in the management and conservation of captive species.The Meso-American slider turtle (Trachemys venusta) is a freshwater turtle that is widely distributed from Mexico to Colombia. Due to the overexploitation of populations of this species in Mexico, it has been placed within the “subject to special protection” category formulated by the Official Mexican Standard NOM-059-ECOL-2010. In the state of Tabasco, Mexico, Management Units for the Conservation of Wildlife (UMA) were created to reduce the impact of overexploitation of freshwater turtles bred in captivity. However, no genetic management plan was considered. The present study was carried out in an UMA in the state of Tabasco. We obtained the level of genetic diversity of the founder individuals of the UMA in order to develop a management plan which will optimize reproduction in the UMA. Genetic diversity was compared between captive (n=86) and wild (n=45) individuals using 14 microsatellite molecular markers. The genetic diversity parameter determined in this study was slightly higher for captive than for wild population (He=0.606 and He=0.594 respectively), reflecting the mix of genetic sources in captive group (founding individuals from different localities) and demonstrating that the captive population contains a diverse subset of alleles from representative populations. The analysis of genetic structure revealed a relationship between captive and wild populations, indicating the influence of the two principal river basins in this region on the populations structure of freshwater turtles. Finally, according to the results obtained from the relationship analysis, we recommend the use of 19 females and 13 males to constitute the appropriate breeding group, generating a potential of 247 dyads with no relationship. However, in order to improve breeding program and the genetic diversity of captive population, we suggest to introduce wild-caught individuals. These results are the first regarding genetic management in a Mexican UMA and demonstrate the importance of molecular approaches in the management and conservation of captive species.Unidades de Manejo para la Conservación de la Vida SilvestreTrachemys venustaTortugas cautivasTortugas dulceacuícolasVariación genéticaArtfrosurTropical Conservation Sciencehttps://journals-sagepub-com.ezproxy.ecosur.mx/doi/pdf/10.1177/1940082920961506Acceso en línea sin restricciones |