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Evolution of ancient satellite DNAs in sturgeon genomes.
TLDR
It is found that, in contrast to the situation in most other living beings, a high degree of preservation, a slow sequence change rate and slowed concerted evolution, appears to be a general rule for sturgeon satellite DNAs. Expand
Comparison of karyotypes of Acipenser oxyrinchus and A. sturio by chromosome banding and fluorescent in situ hybridization
TLDR
The karyotype of A. oxyrinchus is described for the first time, and its features are revealed, among which the constitutive heterochromatin, revealed by C-banding technique, the distribution of telomeric regions, and the 5S rRNA genes, detected by FISH are revealed. Expand
Genomic organization and evolution of the 5S ribosomal DNA in the ancient fish sturgeon.
TLDR
The results suggest that the evolution of the two parts of the 5S rDNA region cannot be explained exclusively as the outcome of a balance between mutational, homogenizing, and selective forces, and other factors might be superimposed over those forces and thus could to some extent be masking their effects. Expand
A heterochromatic satellite DNA is highly amplified in a single chromosome of Muscari (Hyacinthaceae)
TLDR
The characteristics of this satellite DNA family, which, being exclusively amplified in one chromosome pair of M. comosum, constitute the major exception to the equilocal model of satellite DNA and heterochromatin distribution, are discussed. Expand
Genetic Identification of Western Mediterranean Sturgeons and its Implication for Conservation
TLDR
This study demonstrates that A. naccarii coexists with A. sturio, from the Adriatic Sea to the Iberian Peninsula, a finding that could be taken into account in future sturgeon recovery programmes in Western Europe. Expand
Molecular characterization and evolution of an interspersed repetitive DNA family of oysters
TLDR
It is concluded that this band of about 150 bp observed in agarose gel is an interspersed highly repeated DNA element, which is related in sequence to the flanking regions of (CT)-microsatellite loci of the species O. edulis and Crassostrea gigas and forms part of a longer repetitive unit that, at least in some loci, is present in more than one copy. Expand
Chromosomal manipulation in Senegalese sole (Solea senegalensis Kaup, 1858): induction of triploidy and gynogenesis
TLDR
In conclusion, chromosomal-manipulation techniques in the flatfish species Senegalese sole are successfully applied in order to produce triploid, haploid, and diploid gynogenetic progenies. Expand
Analysis of Mitochondrial and Nuclear DNA Markers in Old Museum Sturgeons Yield Insights About the Species Existing in Western Europe: A. sturio, A. naccarii and A. oxyrinchus
TLDR
It is shown that, in addition to Acipenser sturio, the only species previously believed to inhabit the rivers of Western Europe, two other species lived in these rivers, and the combined use of both types of markers has provided accurate genetic identification of these specimens and has overcome the problem of misinterpretation caused by hybridization and introgression. Expand
Detection of Marteilia refringens using nested PCR and in situ hybridisation in Chamelea gallina from the Balearic Islands (Spain).
TLDR
The presence of this parasite in the digestive gland tissue of C. gallina was confirmed by means of in situ hybridisation analysis with a M. refringens-specific probe. Expand
The centromeric satellite of the wedge sole (Dicologoglossa cuneata, Pleuronectiformes) is composed mainly of a sequence motif conserved in other vertebrate centromeric DNAs
TLDR
The centromeric location and the presence in this satellite-DNA sequence of not only different vertebrate motifs but also others such as the CDEIII motif of Saccharomyces cerevisiae reveal a possible role in centromere function. Expand
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