Cytogenetic mapping of H1 histone and ribosomal RNA genes in hybrids between catfish species Pseudoplatystoma corruscans and Pseudoplatystoma reticulatum.
Copyright policy )Cytogenetic mapping of H1 histone and ribosomal RNA genes in hybrids between catfish species Pseudoplatystoma corruscans and Pseudoplatystoma reticulatum.
A physical chromosome mapping of the H1 histone and 5S and 18S ribosomal RNA (rRNA) genes was performed in interspecific hybrids of Pseudoplatystoma corruscans and P. reticulatum. The results showed that 5S rRNA clusters were located in the terminal region of 2 chromosomes. H1 histone and 18S ribosomal genes were co-localized in the terminal portion of 2 chromosomes (distinct from the chromosomes bearing 5S clusters). These results represent the first report of association between H1 histone and 18S genes in fish genomes. The chromosome clustering of ribosomal and histone genes was already reported for different organisms and suggests a possible selective pressure for the maintenance of this association.
RNA 18S, 18S, histone H1, gene cluster, Polymerase Chain Reaction, Histones, rRNA, Pseudoplatystoma corruscans, In Situ Hybridization, Catfishes, In Situ Hybridization, Fluorescence, chromosome map, RNA, Ribosomal, 5S, Chromosome Mapping, RNA 5S, female, priority journal, Multigene Family, Polymorphism, Restriction Fragment Length, fish genetics, Fish Proteins, 5S, interspecific hybrid, Catfish, RNA sequence, Fluorescence, Chromosomes, animal tissue, Cytogenetics, FISH, male, Pseudoplatystoma reticulatum, Genetic, RNA, Ribosomal, 18S, Animals, controlled study, Polymorphism, Hybridization, gene location, Ribosomal, nonhuman, Pseudoplatystoma, Genes, rRNA, Co-localization of rRNA and H1 genes, Restriction Fragment Length, Genes, chromosome structure, RNA, Ribosomal, Hybrid genome, RNA, Hybridization, Genetic
RNA 18S, 18S, histone H1, gene cluster, Polymerase Chain Reaction, Histones, rRNA, Pseudoplatystoma corruscans, In Situ Hybridization, Catfishes, In Situ Hybridization, Fluorescence, chromosome map, RNA, Ribosomal, 5S, Chromosome Mapping, RNA 5S, female, priority journal, Multigene Family, Polymorphism, Restriction Fragment Length, fish genetics, Fish Proteins, 5S, interspecific hybrid, Catfish, RNA sequence, Fluorescence, Chromosomes, animal tissue, Cytogenetics, FISH, male, Pseudoplatystoma reticulatum, Genetic, RNA, Ribosomal, 18S, Animals, controlled study, Polymorphism, Hybridization, gene location, Ribosomal, nonhuman, Pseudoplatystoma, Genes, rRNA, Co-localization of rRNA and H1 genes, Restriction Fragment Length, Genes, chromosome structure, RNA, Ribosomal, Hybrid genome, RNA, Hybridization, Genetic
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