Abstract
Genetic variations in Astyanax sp. fish from Vila Velha State Park and Tibagi river (Paraná, Brazil) were analyzed by RAPD. Intrapopulational genetic similarity was analyzed at three collection sites. The higher RAPD polymorphism observed at site 3 (Tibagi river) suggests either an overlapping of structured populations or the presence of coexisting morphotypes at this site. Significant p values obtained by homogeneity tests revealed an unequal loci proportion among populations. The significance of similarity coefficients indicated that the differences observed among populations are relevant. These findings provide important information for the management and conservation of the species analyzed and for genetic variability maintenance programs.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Ayres,M.,M.Ayres Jr, D.L. Ayres & A.A.S. dos Santos, 2000.BioEstat 2.0:Aplicac ¸ões Estatý ´sticas nas áreas das Ciências Biolo ´gicas e Me ´dicas.Sociedade Civil Mamirauá (Bele ´m),CNPq (Brasý ´lia).
Garutti,V. & H.A. Britski,2000.Descric ¸ão de uma espécie nova de Astyanax (Teleostei:Characidae)da bacia do alto rio Paranáe considerac ¸ões sobre as demais espe ´cies do gênero na bacia.Comunicac ¸ões do Museu de Ciências Tec-nolo ´gicas PUCRS.Se ´r.Zool.Porto Alegre 13:65–88.
Hatanaka,T. & P.M. Galetti Jr,2003.RAPD markers indicate the occurrence of structured populations in a migratory freshwater sh species.Genetics and Molecular Biology 26: 19–25.
Hendry, A.P.,J.K. Wenburg, P.Bentzen, E.C. Volk & T.P. Quinn,2000.Rapid evolution of reproductive isolation in the wild:evidence from introduced Salmon.Science 290: 516–518.
Matoso, D.A.,M.R. Vicari, M.C. Almeida, O.A. Shibatta, O.Moreira-Filho, L.A.C. Bertollo & R.F. Artoni,2002. Karyotypic studies in the Characidae sh,genus Astyanax. An endemic and highly isolated population of Astyanax sp. Cytologia 67:123–128.
Moreira-Filho, O. & L.A.C. Bertollo,1991.Astyanax scabri-pinnis (Pisces,Characidae):a species complex.Brazilian Journal Genetics 14:331–357.
Rohlf, F.J.,1993.NTSYS-PC:Numerical Taxonomy and Multivariate Analysis System,version 1.80.Applied Bio-statistics, Steauket,New York.
Sambrook,J.,E.F. Fritsch & T.Maniatis,1989.Molecular Cloning.A Laboratory Manual.Cold Spring Harbor Lab-oratory Press, Cold Spring Harbor,NewYork.
Soares,O.,1989. Furnas nos Campos Gerais,Paraná.Scientia et Labor,Curitiba, 82 p.
Wasko, A.P. & P.M. Galetti Jr,2002.RAPD analysis in Neotropical sh Brycon lundii:genetic diversity and its implications for the conservation of the species.Hydrobio-logia 474:131–137.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Matoso, D.A., Artoni, R.F. & Galetti Jr, P.M. Genetic Diversity of the Small Characid Fish Astyanax sp., and its Significance for Conservation. Hydrobiologia 527, 223–225 (2004). https://doi.org/10.1023/B:HYDR.0000043303.02986.71
Issue Date:
DOI: https://doi.org/10.1023/B:HYDR.0000043303.02986.71