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Genomic organization of the rDNA cistron of the teleost fish Cyprinus carpio
(Sociedad de Biología de Chile, 2003)
Cytogenetic and molecular markers reveal the complexity of the genus Piabina Reinhardt, 1867 (Characiformes: Characidae)
(Sociedade Brasileira de Ictiologia, 2012-01-01)
Foram realizadas análises citogenéticas e moleculares em representantes do gênero Piabina. O estudo envolveu especificamente as espécies P. argentea e P. anhembi coletadas nas áreas das bacias hidrográficas dos rios ...
Organization of 5S rDNA in species of the fish Leporinus: two different genomic locations are characterized by distinct nontranscribed spacers
(Natl Research Council Canada, 2001-10-01)
To address understanding the organization of the 5S rRNA multigene family in the fish genome, the nucleotide sequence and organization array of 5S rDNA were investigated in the genus Leporinus, a representative freshwater ...
Ribosomal RNA gene insertions in the R2 site of Rhynchosciara (Diptera: Sciaridae)
(SPRINGER, 2008)
Ribosomal RNA genes of most insects are interrupted by R1/R2 retrotransposons. The occurrence of R2 retrotransposons in sciarid genomes was studied by PCR and Southern blot hybridization in three Rhynchosciara species and ...
Chromosomal Mapping of Repetitive DNA Sequences in Five Species of Astyanax (Characiformes, Characidae) Reveals Independent Location of U1 and U2 snRNA Sites and Association of U1 snRNA and 5S rDNA
(Karger, 2015-01-01)
Astyanax is a genus of Characidae fishes currently composed of 155 valid species. Previous cytogenetic studies revealed high chromosomal diversification among them, and several studies have been performed using traditional ...
Intraspecific variation in 16S rRNA gene of Mycoplasma synoviae determined by DNA sequencing
(ELSEVIER SCI LTD, 2010)
Mycoplasma synoviae (MS) is an important avian pathogen may cause both respiratory disease and joint inflammation synovitis in poultry, causing economic losses to the Brazilian poultry industry. The genotypic variation in ...