Ornamental use of Guarianthe skinneri (Orchidaceae), in Chiapas and Guatemala, is partially responsible for its diversity and genetic structure
Background and Aims: Guarianthe skinneri is a native orchid from Chiapas, Mexico, with a Central American distribution, which is threatened by extraction and illegal trade. For this reason, it is classified as threatened in the Mexican rule NOM-059-SEMARNAT-2010. In the region of Soconusco (Chiapas,...
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| Format: | Online |
| Sprache: | spa |
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Instituto de Ecología, A.C.
2018
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| Online Zugang: | https://abm.ojs.inecol.mx/index.php/abm/article/view/1303 |
| _version_ | 1799771334994034688 |
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| author | Coutiño-Cortés, Ana Gabriela Bertolini, Vincenzo Archila Morales, Fredy Valle-Mora, Javier Iracheta-Donjuan, Leobardo García-Bautista, Maricela Ruiz-Montoya, Lorena |
| author_facet | Coutiño-Cortés, Ana Gabriela Bertolini, Vincenzo Archila Morales, Fredy Valle-Mora, Javier Iracheta-Donjuan, Leobardo García-Bautista, Maricela Ruiz-Montoya, Lorena |
| author_sort | Coutiño-Cortés, Ana Gabriela |
| collection | ABM |
| description | Background and Aims: Guarianthe skinneri is a native orchid from Chiapas, Mexico, with a Central American distribution, which is threatened by extraction and illegal trade. For this reason, it is classified as threatened in the Mexican rule NOM-059-SEMARNAT-2010. In the region of Soconusco (Chiapas, Mexico) and Guatemala, it is commonly called “Candelaria”, because its flowering time coincides with the dates of the virgin of the same name. In Tapachula city (Chiapas, Mexico), it is common to find plants of this species in the courtyards of private gardens. The objective of this work was to estimate the diversity and genetic structure of G. skinneri from samples obtained from an urban population of Tapachula and from its comparison with five wild populations of Guatemala, in order to determine the potential of the urban population as a source of propagules and understand if genetic distance between populations could be related with the geographic distance that separates them.Methods: Nucleotidic variation in sequences of two regions of ribosomal nuclear DNA (ITS 1-2 and ITS 3-4) was used as genetic marker. The sequences were concatenated obtaining the conventional parameters of diversity and genetic structure.Key results: We observed populations with low and high genetic diversity. A total of 38 haplotypes were observed, whose number per population was between 1 and 15. Haplotidic diversity (Hd) was between 0 and 1, the average number of polymorphic sites was between 0 and 165. The nucleotidic diversity (p) and the average number of nucleotidic differences shows that Tapachula had the greatest diversity, followed by populations of Guatemala. The genetic structure was moderate (Fst=0.083) and the genetic distance was not associated with the geographic distance of the populations.Conclusions: The diversity patterns and genetic structure between populations were attributed to anthropogenic factors derived from its ornamental use, especially in the city of Tapachula. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-1303 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2018 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-13032022-11-17T22:46:25Z Ornamental use of Guarianthe skinneri (Orchidaceae), in Chiapas and Guatemala, is partially responsible for its diversity and genetic structure El uso ornamental de Guarianthe skinneri (Orchidaceae), en Chiapas y Guatemala, determina parcialmente su diversidad y estructura genética Coutiño-Cortés, Ana Gabriela Bertolini, Vincenzo Archila Morales, Fredy Valle-Mora, Javier Iracheta-Donjuan, Leobardo García-Bautista, Maricela Ruiz-Montoya, Lorena Candelaria conservation NOM-059-SEMARNAT-2010 orchids population structure threatened species Candelaria conservación especie amenazada estructura poblacional NOM-059-SEMARNAT-2010 orquídeas Background and Aims: Guarianthe skinneri is a native orchid from Chiapas, Mexico, with a Central American distribution, which is threatened by extraction and illegal trade. For this reason, it is classified as threatened in the Mexican rule NOM-059-SEMARNAT-2010. In the region of Soconusco (Chiapas, Mexico) and Guatemala, it is commonly called “Candelaria”, because its flowering time coincides with the dates of the virgin of the same name. In Tapachula city (Chiapas, Mexico), it is common to find plants of this species in the courtyards of private gardens. The objective of this work was to estimate the diversity and genetic structure of G. skinneri from samples obtained from an urban population of Tapachula and from its comparison with five wild populations of Guatemala, in order to determine the potential of the urban population as a source of propagules and understand if genetic distance between populations could be related with the geographic distance that separates them.Methods: Nucleotidic variation in sequences of two regions of ribosomal nuclear DNA (ITS 1-2 and ITS 3-4) was used as genetic marker. The sequences were concatenated obtaining the conventional parameters of diversity and genetic structure.Key results: We observed populations with low and high genetic diversity. A total of 38 haplotypes were observed, whose number per population was between 1 and 15. Haplotidic diversity (Hd) was between 0 and 1, the average number of polymorphic sites was between 0 and 165. The nucleotidic diversity (p) and the average number of nucleotidic differences shows that Tapachula had the greatest diversity, followed by populations of Guatemala. The genetic structure was moderate (Fst=0.083) and the genetic distance was not associated with the geographic distance of the populations.Conclusions: The diversity patterns and genetic structure between populations were attributed to anthropogenic factors derived from its ornamental use, especially in the city of Tapachula. Antecedentes y Objetivos: Guarianthe skinneri es una orquídea nativa de Chiapas, México, con distribución centroamericana, objeto de extracción y comercio ilícito; por esta razón, está catalogada como amenazada en la Norma Mexicana NOM-059-SEMARNAT-2010. En la región del Soconusco (Chiapas, México) y Guatemala, se le denomina “Candelaria”, debido a que su época de floración coincide con las fechas de la homónima virgen. En la ciudad de Tapachula (Chiapas, México), es común encontrar individuos de esta especie en los patios de domicilios particulares. El objetivo de este trabajo fue estimar la diversidad y estructura genética de G. skinneri a partir de muestras obtenidas de una población urbana de Tapachula y de su comparación con cinco poblaciones silvestres de Guatemala, para determinar el potencial de la población urbana como fuente de propágulos y averiguar si la distancia genética entre poblaciones se relaciona con la distancia geográfica que las separa.Métodos: Como marcador genético se utilizó la variación nucleotídica en secuencias de dos regiones de ADN nuclear ribosomal (ITS 1-2 y ITS 3-4). Se concatenaron las secuencias y se obtuvieron los parámetros convencionales de diversidad y estructura genética.Resultados clave: Se observaron poblaciones desde bajos hasta altos niveles de diversidad genética. Se registró un total de 38 haplotipos cuyo número entre poblaciones osciló entre 1 y 15. La diversidad haplotípica (Hd) estuvo entre 0 y 1, el número promedio de sitios polimórficos entre 0 y 165. La diversidad nucleotídica (π) y el número promedio de diferencias nucleotídicas muestran que Tapachula tuvo la mayor diversidad, seguida por poblaciones de Guatemala. La estructura genética fue moderada (Fst=0.083) y la distancia genética no se asoció con la distancia geográfica de las poblaciones.Conclusiones: Los patrones de diversidad y estructura genética entre poblaciones se atribuyen a factores antropogénicos derivados de su uso ornamental, especialmente en la ciudad de Tapachula. Instituto de Ecología, A.C. 2018-05-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf text/html https://abm.ojs.inecol.mx/index.php/abm/article/view/1303 10.21829/abm124.2018.1303 Acta Botanica Mexicana; No. 124 (2018); 35-48 Acta Botanica Mexicana; Núm. 124 (2018); 35-48 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/1303/pdf_1 https://abm.ojs.inecol.mx/index.php/abm/article/view/1303/html Derechos de autor 2018 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Coutiño-Cortés, Ana Gabriela Bertolini, Vincenzo Archila Morales, Fredy Valle-Mora, Javier Iracheta-Donjuan, Leobardo García-Bautista, Maricela Ruiz-Montoya, Lorena Ornamental use of Guarianthe skinneri (Orchidaceae), in Chiapas and Guatemala, is partially responsible for its diversity and genetic structure |
| title | Ornamental use of Guarianthe skinneri (Orchidaceae), in Chiapas and Guatemala, is partially responsible for its diversity and genetic structure |
| title_full | Ornamental use of Guarianthe skinneri (Orchidaceae), in Chiapas and Guatemala, is partially responsible for its diversity and genetic structure |
| title_fullStr | Ornamental use of Guarianthe skinneri (Orchidaceae), in Chiapas and Guatemala, is partially responsible for its diversity and genetic structure |
| title_full_unstemmed | Ornamental use of Guarianthe skinneri (Orchidaceae), in Chiapas and Guatemala, is partially responsible for its diversity and genetic structure |
| title_short | Ornamental use of Guarianthe skinneri (Orchidaceae), in Chiapas and Guatemala, is partially responsible for its diversity and genetic structure |
| title_sort | ornamental use of guarianthe skinneri (orchidaceae), in chiapas and guatemala, is partially responsible for its diversity and genetic structure |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/1303 |
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