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 sites detected, 75% were proximally located, 21.6% were interstitial, and only 3.4% were distal. The number of 5S rDNA sites per species varied from a single chromosome pair (in six species) to all chromosome pairs (in five species), with a range of intermediate situations. Thirteen chromosomes from eight species carried two 5S rDNA clusters. At intraspecific level, differences among populations were detected in Eyprepocnemis plorans, and some heteromorphisms have also been observed in some species. Double FISH for 5S rDNA...
Background: The accumulation of repetitive DNA during sex chromosome differentiation is a common fea...
<div><p>A large percentage of eukaryotic genomes consist of repetitive DNA that plays an important r...
Supernumerary chromosomes (B chromosomes) occur in approximately 15 % of eukaryote species. Although...
The 5S ribosomal DNA (rDNA) sequences are subject of dynamic evolution at chromosomal and molecular ...
Background: Supernumerary B chromosomes occur in addition to standard karyotype and have been descri...
Adult males and females of the grasshopper Eyprepocnemis plorans from a Greek population were analys...
The spliceosome, constituted by a protein set associated with small nuclear RNA (snRNA), is responsi...
In the grasshopper Podisma pedestris, units of the ribosomal DNA (rDNA) multigene family are not ide...
Supernumerary chromosomes (B chromosomes) occur in approximately 15% of eukaryote species. Although ...
Supernumerary chromosomes (B chromosomes) occur in approximately 15% of eukaryote species. Although ...
A fusion involving the X chromosome has generated a Neo-XY race from the standard acridid XOIXX kary...
In this study, two species of Romaleidae grasshoppers, Radacridium mariajoseae and R.nordestinum, we...
<div><p>Supernumerary chromosomes (B chromosomes) occur in approximately 15% of eukaryote species. A...
A large percentage of eukaryotic genomes consist of repetitive DNA that plays an important role in t...
Fluorescence in-situ hybridization (FISH) was employed to determine the chromosomal location of the ...
Background: The accumulation of repetitive DNA during sex chromosome differentiation is a common fea...
<div><p>A large percentage of eukaryotic genomes consist of repetitive DNA that plays an important r...
Supernumerary chromosomes (B chromosomes) occur in approximately 15 % of eukaryote species. Although...
The 5S ribosomal DNA (rDNA) sequences are subject of dynamic evolution at chromosomal and molecular ...
Background: Supernumerary B chromosomes occur in addition to standard karyotype and have been descri...
Adult males and females of the grasshopper Eyprepocnemis plorans from a Greek population were analys...
The spliceosome, constituted by a protein set associated with small nuclear RNA (snRNA), is responsi...
In the grasshopper Podisma pedestris, units of the ribosomal DNA (rDNA) multigene family are not ide...
Supernumerary chromosomes (B chromosomes) occur in approximately 15% of eukaryote species. Although ...
Supernumerary chromosomes (B chromosomes) occur in approximately 15% of eukaryote species. Although ...
A fusion involving the X chromosome has generated a Neo-XY race from the standard acridid XOIXX kary...
In this study, two species of Romaleidae grasshoppers, Radacridium mariajoseae and R.nordestinum, we...
<div><p>Supernumerary chromosomes (B chromosomes) occur in approximately 15% of eukaryote species. A...
A large percentage of eukaryotic genomes consist of repetitive DNA that plays an important role in t...
Fluorescence in-situ hybridization (FISH) was employed to determine the chromosomal location of the ...
Background: The accumulation of repetitive DNA during sex chromosome differentiation is a common fea...
<div><p>A large percentage of eukaryotic genomes consist of repetitive DNA that plays an important r...
Supernumerary chromosomes (B chromosomes) occur in approximately 15 % of eukaryote species. Although...