| Revista: | Genetics and molecular biology |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000418491 |
| ISSN: | 1415-4757 |
| Autores: | Amorim, Igor Costa1 Costa, Rafaelle Grazielle Coelho1 Xavier, Crislaine2 Moura, Rita de Cassia de1 |
| Instituciones: | 1Universidade de Pernambuco, Laboratorio de Biodiversidade e Genetica de Insetos, Recife, Pernambuco. Brasil 2Universidade Federal de Pernambuco, Departamento de Genetica, Recife, Pernambuco. Brasil |
| Año: | 2018 |
| Periodo: | Jun |
| Volumen: | 41 |
| Número: | 2 |
| Paginación: | 419-425 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico |
| Resumen en inglés | Transposable elements are dispersed repetitive DNA sequences that can move within the genome and are related to genome and chromosome evolution, adaptation, and speciation. The aim of this study was to characterize and determine the chromosomal location and accumulation of a Mariner-like element in populations of four phylogenetically related species of the Dichotomius (Luederwaldtinia) sericeus complex. Mapping of the isolated element was performed by fluorescent in situ hybridization in different populations of analyzed species. Characterization of the isolated element revealed a degenerated transposon, named DgmarMITE. This transposon is 496-bp-long, AT rich (57%), and contains 24 bp terminal inverted repeats. In situ mapping revealed presence of this element only in two out of four species analyzed. DgmarMITE sites were located in heterochromatic and euchromatic regions and varied in location and number on the karyotypes of Dichotomius (L.) gilletti and D. (L.) guaribensis across different populations. These results demonstrate differential accumulation of the DgmarMITE in genomes of these species, which is probably due to the occurrence of ectopic recombination and cross-mobilization of the element mediated by the transposase of closely related or unrelated transposable elements |
| Disciplinas: | Biología |
| Palabras clave: | Genética, Insectos, Evolución y filogenia, Elementos marineros, Movilización cruzada, Evolución cromosómica, Coleoptera, Scarabaeidae |
| Keyword: | Genetics, Insects, Evolution and phylogeny, Mariner-like elements, Cross-mobilization, Chromosome evolution, Coleoptera, Scarabaeidae |
| Texto completo: | Texto completo (Ver PDF) |
