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Chromosoma
1975 Nov 20;531:25-36. doi: 10.1007/bf00329388.
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Distribution of 18+28S ribosomal genes in mammalian genomes.
Hsu TC
,
Spirito SE
,
Pardue ML
.
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In situ hybridization with 3H 18S and 28S ribosomal RNA from Xenopus laevis has been used to study the distribution of DNA sequences coding for these RNAs (the nucleolus organizing regions) in the genomes of six mammals. Several patterns of distribution have been found: 1) A single major site (rat kangaroo, Seba's fruit bat), 2) Two major sites (Indian muntjac), 3) Multiple sites in centromeric heterochromatin (field vole), 4) Multiple sites in heterochromatic short arms (Peromyscus eremicus), 5) Multiple sites in telomeric regions (Chinese hamster). - The chromosomal sites which bind 3H 18S and 28S ribosomal RNA correspond closely to the sites of secondary constrictions where these are known. However, the correlation is not absolute. Some secondary constrictions do not appear to bind 3H ribosomal RNA. Some regions which bind ribosomal RNA do not appear as secondary constrictions in metaphase chromosomes. - Although the nucleolus organizing regions of most mammalian karyotypes are found on the autosomes, the X chromosomes in Carollia perspicillata and C. castanea carry large clusters of sequences complementary to ribosomal RNA. In situ hybridization shows that the Y chromosome in C. castanea also has a large nucleolus organizing region.
Funaki,
Location of nucleolar organizers in animal and plant chromosomes by means of an improved N-banding technique.
1975, Pubmed
Funaki,
Location of nucleolar organizers in animal and plant chromosomes by means of an improved N-banding technique.
1975,
Pubmed
Gall,
Formation and detection of RNA-DNA hybrid molecules in cytological preparations.
1969,
Pubmed
,
Xenbase
Goodpasture,
Visualization of nucleolar organizer regions im mammalian chromosomes using silver staining.
1975,
Pubmed
Henderson,
Location of ribosomal DNA in the human chromosome complement.
1972,
Pubmed
Henderson,
The chromosomal location of ribosomal DNA in the mouse.
1974,
Pubmed
Henderson,
Localization of rDNA in the chimpanzee (Pan troglodytes) chromosome complement.
1974,
Pubmed
Hsu,
The structure and behavior of the nucleolus organizer in mammalian cells.
1967,
Pubmed
Hsu,
Mammalian chromosomes in vitro. XVII. Idiogram of the Chinese hamster.
1964,
Pubmed
Hsu,
The multiple sex chromosome system of American leaf-nosed bats (Chiropter, Phyllostomidae).
1968,
Pubmed
Hutchison,
The mitotic chromosomes of Notophthalmus (=Triturus) viridescens: localization of C banding regions and DNA sequences complementary to 18S, 28S and 5S ribosomal RNA.
1975,
Pubmed
Kato,
Constitutive heterochromatin of Indian muntjac chromosomes revealed by DNAse treatment and a C-banding technique.
1974,
Pubmed
Matsui,
Differential staining of nucleolus organisers in mammalian chromosomes.
1973,
Pubmed
Pardu,
Cytological localization of DNA complementary to ribosomal RNA in polytene chromosomes of Diptera.
1970,
Pubmed
Pardue,
Locations of 18S and 28S ribosomal genes on the chromosomes of the Indian muntjac.
1975,
Pubmed
,
Xenbase
Pardue,
Localization of repeated DNA sequences in Xenopus chromosomes.
1974,
Pubmed
,
Xenbase
Pathak,
Chromosomes of Peromyscus (Rodentia, Cricetidae). IV. The role of heterochromatin in karyotypic evolution.
1973,
Pubmed
Patton,
Parallel evolution of multiple sex-chromosome systems in the phyllostomatid bats. Carollia and Choeroniscus.
1971,
Pubmed
Phillips,
Sites of nucleolus production in cultured Chinese hamster cells.
1969,
Pubmed
SHAW,
THE CHROMOSOMES OF THE TASMANIAN RAT-KANGAROO (POTOROUS TRIDACTYLIS APICALIS).
1964,
Pubmed
Sinclair,
Retention of common nucleotide sequences in the ribosomal deoxyribonucleic acid of eukaryotes and some of their physical characteristics.
1971,
Pubmed
Stock,
Chromosome banding pattern homology and its phlogenetic implications in the bat genera Carollia and Choeroniscus.
1975,
Pubmed