VARIABILIDAD INDUCIDA EN Tigridia pavonia (L. f.) D.C. var. Sandra POR IRRADIACIÓN DE BULBOS CON RAYOS GAMMA DE 60Co

Díaz, Eric Montero; Pichardo, José Mora; Cruz, Eduardo de la; Norman, T; Sandoval, Félix Jové; Vázquez, Lourdes Rojas

doi:10.5154/r.rchsh.2002.06.037

Cited by 4 publications

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“…In addition, with the development of the Fluorescent In Situ Hybridization (FISH) technique, it has been possible to characterize specific chromosomes, allowing the identification of chromosomal rearrangements and genomic changes between different groups species or polyploid individuals (Guidini et al, 2017;He et al, 2017). Some studies have been focused at the genetic breeding of this species for example; Díaz-L et al (2003) irradiated bulbs of the variety Sandra with gamma rays of 60 Co to induce variability of ornamental importance. Likewise, Piña-Escutia et al (2003) obtained hybrids between T. pavonia var Carolina and T. augusta by in vitro culture of ovary sections, which indicates an interest in the species.…”

Section: Introductionmentioning

confidence: 99%

CYTOGENETIC RELATIONSHIPS IN THREE VARIETIES OF Tigridia pavonia (L.f.) DC

Arroyo-Martínez

Arzate-Fernández

Barba-González³

et al. 2020

Trop Subtrop Agroecosyst

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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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Section: Introductionmentioning

confidence: 99%