Cytomolecular assay of size nucleolar organizer regions (NORs) polymorphism in Pietrain pigs

Barbara Danielak-Czech

Departament of Animal Cytogenetics and Molecular Genetics, National Institute of Animal Production, Krakowska 1, 32-083 Balice/Kraków

Barbara Rejduch

Departament of Animal Cytogenetics and Molecular Genetics, National Institute of Animal Production, Krakowska 1, 32-083 Balice/Kraków

Marek Babicz

Department of Pig Breeding and Production Technology, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin



Abstract

The aim of this study was to identify and classify the size variants of nucleolar organizing regions (NORs) as markers useful for genetic characteristics of Pietrain breed pigs. On the
basis of cytomolecular analysis carried out by silver staining (Ag-I) and fluorescence in situ hybridization (FISH) techniques, four size variants of rDNA-FISH-signals and Ag-NORs silver
deposits were classified. Results of cytomolecular assay of size NORs polymorphism can be used in inter-breed or inter-species comparative surveys and studies of evolutionary relationships in Suidae family.

Keywords:

pigs, chromosomes, nucleolar organizing regions (NORs), genetic markers, FISH technique

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Published
2011-12-31



Barbara Danielak-Czech 
Departament of Animal Cytogenetics and Molecular Genetics, National Institute of Animal Production, Krakowska 1, 32-083 Balice/Kraków
Barbara Rejduch 
Departament of Animal Cytogenetics and Molecular Genetics, National Institute of Animal Production, Krakowska 1, 32-083 Balice/Kraków
Marek Babicz 
Department of Pig Breeding and Production Technology, University of Life Sciences in Lublin, Akademicka 13, 20-950 Lublin



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