CYTOGENETIC RELATIONSHIPS IN THREE VARIETIES OF Tigridia pavonia (L.f.) DC
Background: Tigridia pavonia (L.f.) DC is a wild species with great ornamental value, of which nine plant varieties are known. Within the evolutionary process of this species, Penélope has been considered a natural hybrid, product of the cross between the varieties Trinidad and Dulce. Objective: In...
| Autores: | , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | México |
| Recursos: | UNIVERSIDAD AUTÓNOMA DE YUCATÁN |
| Repositorio: | Tropical and Subtropical Agroecosystems |
| Idioma: | inglés |
| OAI Identifier: | oai:ojs.www.revista.ccba.uady.mx:article/3297 |
| Acesso em linha: | https://www.revista.ccba.uady.mx/ojs/index.php/TSA/article/view/3297 |
| Access Level: | acceso abierto |
| Palavra-chave: | Tigridia pavonia; natural hybrid; karyotype; Fluorescent In situ Hybridization; B chromosomes. Tigridia pavonia; híbridos naturales; cariotipo; Hibridación In-Situ Fluorescente; cromosomas B. |
| Resumo: | Background: Tigridia pavonia (L.f.) DC is a wild species with great ornamental value, of which nine plant varieties are known. Within the evolutionary process of this species, Penélope has been considered a natural hybrid, product of the cross between the varieties Trinidad and Dulce. Objective: In the present study, the cytogenetic relationships among Trinidad, Dulce and Penélope were analyzed. Methodology: The karyotype of the varieties Trinidad and Penélope was determined through classic cytogenetics and the physical mapping of the genes 5s and 45s rDNA through Fluorescent In Situ Hybridization. Results: The results showed for the first time the karyotype and the physical mapping of the genes 5s and 45s rDNA in the varieties Trinidad and Penélope. Implications: The information generated can be the basis for future evolutionary analyzes, and / or breeding programs in the species. Conclusion: A higher cytogenetic similarity of Penélope with Trinidad and Dulce has been revealed, suggesting that the latter may be the parents. |
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