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The B Chromosomes of Prochilodus lineatus (Teleostei, Characiformes) Are Highly Enriched in Satellite DNAs.
Stornioli, José Henrique Forte; Goes, Caio Augusto Gomes; Calegari, Rodrigo Milan; Dos Santos, Rodrigo Zeni; Giglio, Leonardo Moura; Foresti, Fausto; Oliveira, Claudio; Penitente, Manolo; Porto-Foresti, Fábio; Utsunomia, Ricardo.
Afiliación
  • Stornioli JHF; Faculty of Sciences, São Paulo State University, Bauru, São Paulo 17033-360, Brazil.
  • Goes CAG; Faculty of Sciences, São Paulo State University, Bauru, São Paulo 17033-360, Brazil.
  • Calegari RM; Faculty of Sciences, São Paulo State University, Bauru, São Paulo 17033-360, Brazil.
  • Dos Santos RZ; Faculty of Sciences, São Paulo State University, Bauru, São Paulo 17033-360, Brazil.
  • Giglio LM; Faculty of Sciences, São Paulo State University, Bauru, São Paulo 17033-360, Brazil.
  • Foresti F; Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, Botucatu, São Paulo 18618-689, Brazil.
  • Oliveira C; Department of Structural and Functional Biology, Institute of Biosciences, São Paulo State University, Botucatu, São Paulo 18618-689, Brazil.
  • Penitente M; Mato Grosso State University, Cuiabá, Mato Grosso 78400-000, Brazil.
  • Porto-Foresti F; Faculty of Sciences, São Paulo State University, Bauru, São Paulo 17033-360, Brazil.
  • Utsunomia R; Department of Genetics, Institute of Biological Sciences and Health, Rural Federal University of Rio de Janeiro, Seropedica, Rio de Janeiro 23897-000, Brazil.
Cells ; 10(6)2021 06 17.
Article en En | MEDLINE | ID: mdl-34204462
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.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: ADN Satélite / Cromosomas / Characiformes Límite: Animals / Humans Idioma: En Revista: Cells Año: 2021 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: ADN Satélite / Cromosomas / Characiformes Límite: Animals / Humans Idioma: En Revista: Cells Año: 2021 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Suiza