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XX:XY sex chromosome system with X heterochromatinization: An early stage of sex chromosome differentiation in the neotropic electric eel Eigenmannia virescens
(2001-12-01)
An early stage of sex chromosome differentiation is reported to occur in the electric eel Eigenmannia virescens (Pisces, Sternopygidae) from populations of two tributaries of the Paraná river system (Brazil). Cytogenetic ...
The fish fauna in tropical rivers: The case of the Sorocaba river basin, São Paulo, Brazil
(2003-09-01)
A survey was carried out on the fish species in the Sorocaba River basin, the main tributary of the left margin of the Tietê River, located in the State of São Paulo, Brazil. The species were collected with gill nets. After ...
The fish fauna in tropical rivers: The case of the Sorocaba river basin, São Paulo, Brazil
(2003-09-01)
A survey was carried out on the fish species in the Sorocaba River basin, the main tributary of the left margin of the Tietê River, located in the State of São Paulo, Brazil. The species were collected with gill nets. After ...
Non-homologous sex chromosomes in two species of the genus Eigenmannia (Teleostei : Gymnotiformes)
(KARGER, 2008)
The Neotropical genus Eigenmannia is a fish group with unknown species diversity where representatives possess a broad range of chromosomal sex determining systems namely XY/XX, X1X2Y/X1X1X2X2, ZZ/ZW as well as homomorphic ...