Data/hora: 02/06/2024 02:09:06

Provedor de dados: | Genetics and Molecular Biology
País: | Brazil
Título: | Agmatoploidy and symploidy: a critical review
Autores: | Guerra,Marcelo.
Data: | 2016-12-01
Ano: | 2016
Palavras-chave: | Agmatoploidy; Symploidy; Holocentrics; Holokinetic chromosomes; Chromosome evolution.
Resumo: | Abstract 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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000400492
Editor: | Sociedade Brasileira de Genética
Relação: | 10.1590/1678-4685-gmb-2016-0103
Formato: | text/html
Fonte: | Genetics and Molecular Biology  v.39 n.4 2016
Fonte: | info:eu-repo/semantics/openAccess