Satellite DNA is transcribed on lampbrush chromosomes

Nature ◽  
1980 ◽  
Vol 283 (5748) ◽  
pp. 686-688 ◽  
Author(s):  
Jennifer M. Varley ◽  
Herbert C. Macgregor ◽  
Harry P. Erba
Keyword(s):  
Satellite Dna ◽  
Lampbrush Chromosomes

scholarly journals Transcription of a satellite DNA in the newt.

1986 ◽  
Vol 103 (4) ◽  
pp. 1137-1144 ◽  
Author(s):  
L M Epstein ◽  
K A Mahon ◽  
J G Gall
Keyword(s):  
Structural Gene ◽  
Satellite Dna ◽  
Repeat Unit ◽  
Repeated Sequence ◽  
Small Subset ◽  
Notophthalmus Viridescens ◽  
Gene Promoters ◽  
Dna Repeats ◽  
Lampbrush Chromosomes ◽  
Different Tissues

Satellite 2 is an abundant, 330-bp tandemly repeated sequence in the genome of the newt, Notophthalmus viridescens. This sequence is distributed throughout the genome on each of the 11 chromosomes. Both strands of satellite 2 are transcribed on the lampbrush chromosomes during oogenesis, probably as a result of readthrough from upstream structural gene promoters. In addition to these heterogeneous nuclear transcripts, satellite 2 is homologous to stable, strand-specific cytoplasmic transcripts in a variety of different tissues. The majority of these transcripts correspond in size to the entire satellite 2 repeat unit, or to whole multiples of the repeat. The transcripts present in the ovary have been sequenced by primer extension and were found to be more homogeneous than eight independently cloned satellite 2 DNA repeats. We propose that the stable cytoplasmic transcripts are encoded by a small subset of genomic satellite 2 sequences.

scholarly journals Genomic Tackling of Human Satellite DNA: Breaking Barriers through Time

2021 ◽  
Vol 22 (9) ◽  
pp. 4707
Author(s):  
Mariana Lopes ◽  
Sandra Louzada ◽  
Margarida Gama-Carvalho ◽  
Raquel Chaves
Keyword(s):  
Human Genome ◽  
Satellite Dna ◽  
Repetitive Sequences ◽  
Nucleotide Composition ◽  
Genomic Component ◽  
Genomic Studies ◽  
Human Genomic ◽  
Definition Of ◽  
High Degree

(Peri)centromeric repetitive sequences and, more specifically, satellite DNA (satDNA) sequences, constitute a major human genomic component. SatDNA sequences can vary on a large number of features, including nucleotide composition, complexity, and abundance. Several satDNA families have been identified and characterized in the human genome through time, albeit at different speeds. Human satDNA families present a high degree of sub-variability, leading to the definition of various subfamilies with different organization and clustered localization. Evolution of satDNA analysis has enabled the progressive characterization of satDNA features. Despite recent advances in the sequencing of centromeric arrays, comprehensive genomic studies to assess their variability are still required to provide accurate and proportional representation of satDNA (peri)centromeric/acrocentric short arm sequences. Approaches combining multiple techniques have been successfully applied and seem to be the path to follow for generating integrated knowledge in the promising field of human satDNA biology.

scholarly journals Cetacean molecular hybridization using balenopterid satellite DNA cRNAs as probes

Hereditas ◽  
2008 ◽  
Vol 97 (1) ◽  
pp. 33-36 ◽  
Author(s):  
ULFUR ARNASON ◽  
IAN F. PURDOM ◽  
KEN W. JONES
Keyword(s):  
Satellite Dna ◽  
Molecular Hybridization

scholarly journals Satellite DNA as a target for TaqMan real-time PCR detection of the pinewood nematode, Bursaphelenchus xylophilus

2007 ◽  
Vol 8 (6) ◽  
pp. 803-809 ◽  
Author(s):  
CECILE FRANÇOIS ◽  
CHANTAL CASTAGNONE ◽  
NEIL BOONHAM ◽  
JENNY TOMLINSON ◽  
REBECCA LAWSON ◽  
...  
Keyword(s):  
Real Time ◽  
Real Time Pcr ◽  
Satellite Dna ◽  
Bursaphelenchus Xylophilus ◽  
Pcr Detection ◽  
Pinewood Nematode

On the mode of evolution of alpha satellite DNA in human populations

1991 ◽  
Vol 33 (1) ◽  
pp. 42-48 ◽  
Author(s):  
B. Marçais ◽  
J. P. Charlieu ◽  
B. Allain ◽  
E. Brun ◽  
M. Bellis ◽  
...  
Keyword(s):  
Satellite Dna ◽  
Human Populations ◽  
Alpha Satellite ◽  
Alpha Satellite Dna
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