Cytogenetics of two sympatric Corydoras species (pisces, siluriformes, challichtyidae) of Southern Brazil

Author:

Artoni R. F.1,Terêncio M. L.1,Vicari M. R.2,Matiello M. C. A.1,Cestari M. M.3,Bertollo L. A. C.2

Affiliation:

1. Universidade Estadual de Ponta Grossa, Brazil

2. Universidade Federal de São Carlos, Brazil

3. Universidade Federal do Paraná, Brazil

Abstract

Karyotypic data are presented for two sympatric Corydoras species of the Lagoa Dourada, namely, C. ehrhadti and C. paleatus, which are found in the upper Tibagi river basin (Ponta Grossa, State of Paraná, Brazil). The same diploid number and karyotypic formula were observed in both species/populations. A great similarity in the constitutive heterochromatin distribution and in the activity of nucleolar organizer regions was also found. The use of in situ hybridization with a fluorescent 18S rDNA probe allowed for the identification of the species/populations through the location of ribosomal sites.

Publisher

FapUNIFESP (SciELO)

Subject

General Agricultural and Biological Sciences

Reference28 articles.

1. Trends in the Karyotype evolution of Loricariidae fish (Siluriformes);ARTONI R. F.;Hereditas,2001

2. Evolutionary aspects of the ZZ/ZW sex chromosome system in the Characidae fish, genus Triportheus: A monophyletic State and NOR;ARTONI R. F.;Heredity,2002

3. A biodiversity approach in the neotropical Erythrinidae fish, Hoplias malabaricus: Karyotipic survey, geographic distribution of cytotypes and cytotaxonomic considerations;BERTOLLO L. A. C.;Chromosome Res,2000

4. Cytotaxonomic considerations on Hoplias lacerdae (Pisces, Erythrinidae);BERTOLLO L. A. C.;Brazil. J. Genetics,1978

5. An Atlas of Freshwater and Marine Catfishes, a preliminary survey of the Siluriformes;BURGESS W. E.,1989

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