Data/hora: 05/06/2024 10:43:42

Provedor de dados: | 83
País: | Brazil
Título: | Cytogenetic and molecular analyses in troglobitic and epigean species of Pimelodella (Siluriformes: Heptapteridae) from Brazil
Autores: | Dazzani,Bianca; Garcia,Caroline; Peixoto,Marilena; Trajano,Eleonora; Almeida-Toledo,Lurdes Foresti de.
Data: | 2012-09-01
Ano: | 2012
Palavras-chave: | Cave fish; Cytogenetics; Evolutionary relationships; FISH; PCR-RFLP.
Resumo: | Samples from seven different locations of the genus Pimelodella were genetically examined, two caves (exclusively subterranean, upper Tocantins River and São Francisco River) and five epigean (from upper Paraná River basin). Cytogenetic analyses revealed the same diploid number (2n=46) for all species besides similarities in both number and location of nucleolar organizer regions and C bands. FISH with 5S rDNA probes and CMA3 staining indicated significant differences among the studied species. Application of PCR-RFLP in ATPase 6 and 8 mitochondrial genes allowed building a minimum evolution phenogram identifying the close evolutionary relationship among groups. Both chromosomal and molecular data were useful to infer the relationships among studied Pimelodella species.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000300016
Editor: | Sociedade Brasileira de Ictiologia
Relação: | 10.1590/S1679-62252012005000020
Formato: | text/html
Fonte: | Neotropical Ichthyology  v.10 n.3 2012
Fonte: | info:eu-repo/semantics/openAccess