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Reduction of the activity of ribosomal genes with age in Down's syndrome
(Karger, 1996-05-01)
The hypothesis of the coparticipation of ribosomal genes in controlling the differential expression of genes with age is analyzed in Down's syndrome. The activity of ribosomal genes was tested cytogenetically by Ag-stained ...
Cytogenetic mapping of H1 histone and ribosomal RNA genes in hybrids between catfish species Pseudoplatystoma corruscans and Pseudoplatystoma reticulatum
(2013-01-01)
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 ...
Cytogenetic mapping of H1 histone and ribosomal RNA genes in hybrids between catfish species Pseudoplatystoma corruscans and Pseudoplatystoma reticulatum
(2013-01-01)
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 ...
Evolutionary dynamics of 5S rDNA location in acridid grasshoppers and its relationship with H3 histone gene and 45S rDNA location
(2011-07-01)
We analyze the chromosomal location of 5S rDNA clusters in 29 species of grasshoppers belonging to the family Acrididae. There was extensive variation among species for the number and location of 5S rDNA sites. Out of 148 ...
Evolutionary dynamics of 5S rDNA location in acridid grasshoppers and its relationship with H3 histone gene and 45S rDNA location
(2011-07-01)
We analyze the chromosomal location of 5S rDNA clusters in 29 species of grasshoppers belonging to the family Acrididae. There was extensive variation among species for the number and location of 5S rDNA sites. Out of 148 ...
Diversity of cry genes and genetic characterization of Bacillus thuringiensis isolated from Brazil
(2004-08-01)
Two hundred and eighteen Bacillus thuringiensis isolates from Brazil were characterized by the presence of crystal protein genes by PCR with primers specific to different cry and cyt genes. Among these isolates, 95 were ...
Diversity of cry genes and genetic characterization of Bacillus thuringiensis isolated from Brazil
(2004-08-01)
Two hundred and eighteen Bacillus thuringiensis isolates from Brazil were characterized by the presence of crystal protein genes by PCR with primers specific to different cry and cyt genes. Among these isolates, 95 were ...
PHYLOGENETIC STUDY OF GEITLERINEMA AND MICROCYSTIS ( CYANOBACTERIA) USING PC-IGS AND 16S-23S ITS AS MARKERS: INVESTIGATION OF HORIZONTAL GENE TRANSFER
(Wiley-Blackwell, 2014-08-01)
Selection of genes that have not been horizontally transferred for prokaryote phylogenetic inferences is regarded as a challenging task. The markers internal transcribed spacer of ribosomal genes (16S-23S ITS) and phycocyanin ...