| Revue: | Genetics and molecular biology |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000459244 |
| ISSN: | 1415-4757 |
| Autores: | Bertocchi, Natasha Ávila1 Oliveira, Thays Duarte de1 Deprá, Maríndia1 Goñi, Beatriz2 Valente, Vera Lúcia S1 |
| Instituciones: | 1Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul. Brasil 2Universidad de la República, Facultad de Ciencias, Montevideo. Uruguay |
| Año: | 2022 |
| Volumen: | 45 |
| Número: | 2 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | Transposable elements are abundant and dynamic part of the genome, influencing organisms in different ways through their presence or mobilization, or by acting directly on pre- and post-transcriptional regulatory regions. We compared and evaluated the presence, structure, and copy number of three hAT superfamily transposons (hobo, BuT2, and mar) in five strains of Drosophila willistoni species. These D. willistoni strains are of different geographical origins, sampled across the north-south occurrence of this species. We used sequenced clones of the hAT elements in fluorescence in-situ hybridizations in the polytene chromosomes of three strains of D. willistoni. We also analyzed the structural characteristics and number of copies of these hAT elements in the 10 currently available sequenced genomes of the willistoni group. We found that hobo, BuT2, and mar were widely distributed in D. willistoni polytene chromosomes and sequenced genomes of the willistoni group, except for mar, which is restricted to the subgroup willistoni. Furthermore, the elements hobo, BuT2, and mar have different evolutionary histories. The transposon differences among D. willistoni strains, such as variation in the number, structure, and chromosomal distribution of hAT transposons, could reflect the genomic and chromosomal plasticity of D. willistoni species in adapting to highly variable environments |
| Disciplinas: | Biología |
| Palabras clave: | Genética, Insectos, Drosophila willistoni, Elementos transponibles, Superfamilia HAT, Cromosomas politénicos |
| Keyword: | Genetics, Insects, Drosophila willistoni, Transposable elements, Drosophila, HAT superfamily, Polytene chromosomes |
| Texte intégral: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
