| Revista: | Genetics and molecular biology |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000401275 |
| ISSN: | 1415-4757 |
| Autores: | Guerra, Marcelo1 |
| Instituciones: | 1Universidade Federal de Pernambuco, Departamento de Botanica, Recife, Pernambuco. Brasil |
| Año: | 2016 |
| Periodo: | Dic |
| Volumen: | 39 |
| Número: | 4 |
| Paginación: | 492-496 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | Agmatoploidy is a type of chromosome rearrangement that involves the fragmentation of an entire chromosome complement, generating a diploid with double its original chromosome number. Agmatoploidy and other related karyotype changes, such as symploidy (the opposite change, promoted by chromosome fusion), partial agmatoploidy, polyagmatoploidy, etc., are restricted to species with holokinetic chromosomes and are assumed to play an important role in their karyotype evolution. However, a critical review of the literature shows that examples of chromosome number doubling by agmatoploidy are rare and not clearly demonstrated, while partial agmatoploidy and partial symploidy seem to be the same as ascending and descending disploidy, respectively. It is therefore proposed here that these terms should be avoided or even abolished |
| Disciplinas: | Biología |
| Palabras clave: | Genética, Evolución cromosómica, Rearreglo cromosómico, Cromosomas holocinéticos, Agmatoploidia, Simploidia |
| Keyword: | Biology, Genetics, Chromosome evolution, Chromosome rearrangement, Holokinetic chromosomes, Agmatoploidy, Symploidy |
| Texto completo: | Texto completo (Ver HTML) |
