| Texto completo | |
| Autor(es): |
Stornioli, Jose Henrique Forte
[1]
;
Goes, Caio Augusto Gomes
[1]
;
Calegari, Rodrigo Milan
[1]
;
dos Santos, Rodrigo Zeni
[1]
;
Giglio, Leonardo Moura
[1]
;
Foresti, Fausto
[2]
;
Oliveira, Claudio
[2]
;
Penitente, Manolo
[3]
;
Porto-Foresti, Fabio
[1]
;
Utsunomia, Ricardo
[4]
Número total de Autores: 10
|
| Afiliação do(s) autor(es): | [1] Sao Paulo State Univ, Fac Sci, BR-17033360 Bauru, SP - Brazil
[2] Sao Paulo State Univ, Inst Biosci, Dept Struct & Funct Biol, BR-18618689 Botucatu, SP - Brazil
[3] Mato Grosso State Univ, BR-78400000 Cuiaba, MG - Brazil
[4] Rural Fed Univ Rio De Janeiro, Inst Biol Sci & Hlth, Dept Genet, BR-23897000 Seropedica, RJ - Brazil
Número total de Afiliações: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | CELLS; v. 10, n. 6 JUN 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
B or supernumerary chromosomes are dispensable elements that are widely present in numerous eukaryotes. Due to their non-recombining nature, there is an evident tendency for repetitive DNA accumulation in these elements. Thus, satellite DNA plays an important role in the evolution and diversification of B chromosomes and can provide clues regarding their origin. The characiform Prochilodus lineatus was one of the first discovered fish species bearing B chromosomes, with all populations analyzed so far showing one to nine micro-B chromosomes and exhibiting at least three morphological variants (Ba, Bsm, and Bm). To date, a single satellite DNA is known to be located on the B chromosomes of this species, but no information regarding the differentiation of the proposed B-types is available. Here, we characterized the satellitome of P. lineatus and mapped 35 satellite DNAs against the chromosomes of P. lineatus, of which six were equally located on all B-types and this indicates a similar genomic content. In addition, we describe, for the first time, an entire population without B chromosomes. (AU) | |
| Processo FAPESP: | 18/03365-3 - INTEGRAÇÃO DE ANÁLISES CROMOSSÔMICAS E GENÔMICAS PARA O ESTUDO EVOLUTIVO E FUNCIONAL DE DNAS SATÉLITES EM Astyanax (TELEOSTEI, CHARACIFORMES) |
| Beneficiário: | Fábio Porto-Foresti |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |