| Registro completo |
| Provedor de dados: |
Neotropical Ichthyology
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| País: |
Brazil
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| Título: |
Cytogenetic and molecular analyses in troglobitic and epigean species of Pimelodella (Siluriformes: Heptapteridae) from Brazil
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| Autores: |
Dazzani,Bianca
Garcia,Caroline
Peixoto,Marilena
Trajano,Eleonora
Almeida-Toledo,Lurdes Foresti de
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| Data: |
2012-09-01
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| Ano: |
2012
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| Palavras-chave: |
Cave fish
Cytogenetics
Evolutionary relationships
FISH
PCR-RFLP
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| 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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000300016
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| Editor: |
Sociedade Brasileira de Ictiologia
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| Relação: |
10.1590/S1679-62252012005000020
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| Formato: |
text/html
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| Fonte: |
Neotropical Ichthyology v.10 n.3 2012
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| Direitos: |
info:eu-repo/semantics/openAccess
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