Cytogenetic and molecular analyses in troglobitic and epigean species of Pimelodella (Siluriformes: Heptapteridae) from Brazil
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
05/11/2013
05/11/2013
2012
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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 Sao Francisco River) and five epigean (from upper Parana 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 CMA(3) 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. FAPESP FAPESP CAPES CAPES CNPq CNPq |
| Identificador |
NEOTROPICAL ICHTHYOLOGY, PORTO ALEGRE, v. 10, n. 3, pp. 623-632, OCT 23, 2012 1679-6225 http://www.producao.usp.br/handle/BDPI/41778 10.1590/S1679-62252012005000020 |
| Idioma(s) |
eng |
| Publicador |
SOC BRASILEIRA ICTIOLOGIA PORTO ALEGRE |
| Relação |
NEOTROPICAL ICHTHYOLOGY |
| Direitos |
openAccess Copyright SOC BRASILEIRA ICTIOLOGIA |
| Palavras-Chave | #CAVE FISH #CYTOGENETICS #EVOLUTIONARY RELATIONSHIPS #FISH #PCR-RFLP #MITOCHONDRIAL-DNA #PIMELODIDAE #DIFFERENTIATION #PISCES #CHARACIFORMES #CHROMOSOMES #POPULATIONS #HISTORY #CATFISH #REGIONS #ZOOLOGY |
| Tipo |
article original article publishedVersion |
