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Title: Two genetic stocks of steindachneridion melanodermatum living in sympatry in nature and genetic variability of wild parents and F1 generation
Authors: Matoso, D. A.
Silva, M. R. da
Cortinhas, Maria Cristina S.Silva
Cestari, Marta Margarete
Almeida, Mara Cristina de
Vicari, Marcelo Ricardo
Artoni, Roberto Ferreira
Keywords: Controlled Study
Gene Mutation
Genetic Similarity
Genetic Variability
Gene Locus
Genetic Marker
Random Amplified Polymorphic Dna
Genetic Loci
Genetic Markers
Genetic Variation
Random Amplified Polymorphic Dna Technique
Issue Date: 2011
metadata.dc.publisher.journal: Genetics and Molecular Research
metadata.dc.relation.ispartof: Volume 10, Número 4, Pags. 2606-2612
Abstract: Steindachneridion melanodermatum is a large Brazilian catfish, highly prized for sport fishing and for its meat. Specimens of this species, both caught in nature from Iguacu River and F1 fish born in captivity, were analyzed with regard to patterns of RAPD molecular markers. Genetic similarity ranged from 0.57 to 0.95; two groups were determined for the wild specimens. The results suggest different genetic lineages in sympatry in nature. Heterozygosity and percentage of polymorphic loci were 0.31 and 79% and 0.23 and 62%, respectively, for the two populations of wild specimens and 0.26 and 66%, respectively, for those born in captivity. © FUNPEC-RP.
metadata.dc.identifier.doi: 10.4238/2011.October.25.8
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