By definition, telomeric sequences are located at the very ends or terminal regions of
chromosomes. However, several vertebrate species show blocks of (TTAGGG) n repeats …

Although some species groups have been recognized in the leiuperine genus
Physalaemus, no phylogenetic analysis has previously been performed. Here, we provide a …

Telomere has a central role in chromosomal stability events. Chromosome ends organized
in telomere-loop prevent activation of DNA damage response (DDR) mechanisms, thus …

Repetitive DNA regions are known as fragile chromosomal sites which present a high
flexibility and low stability. Our focus was characterize fragile sites in 5S rDNA regions. The …

The mitotic chromosomes of 4 anuran species were examined by various classical banding
techniques and by fluorescence in situ hybridization using a (TTAGGG) n repeat. Large …

The caenophidian (assigned also as “advanced”) snakes are traditionally viewed as a group
of reptiles with a limited karyotypic variation and stable ZZ/ZW sex chromosomes. The W …

Taxonomy in Bufonidae witnessed notable transformations. Bufotes viridis and Epidalea
calamita, previously included in genus Bufo, were relocated in other genera, while the …

Telomeres are nucleoprotein complexes protecting chromosome ends in most eukaryotic
organisms. In addition to chromosome ends, telomeric-like motifs can be accumulated in …

Tandem arrays of TTAGG repeats show a highly conserved location at the telomeres across
the phylogenetic tree of arthropods. In giant water bugs Belostoma, the chromosome …

Cytogenetic studies show that there is great karyotypic diversity in order Testudines (2n= 26–
68), and that this may be mainly attributed to the presence/absence of microchromosomes …