1996
DOI: 10.1139/g96-085
|View full text |Cite
|
Sign up to set email alerts
|

A NOR-associated repetitive element present in the genome of two Salmo species (salmo salar and Salmo trutta)

Abstract: A repetitive element was isolated from the genome of Atlantic salmon. Nucleotide sequence analysis revealed the existence of variant monomers that range in length from approximately 200 to 230 bp. Repeat monomers contain regions of cryptic simplicity, internal repetition, and long direct repeats with deletions and insertions between individual units. The repetitive element was shown to have a tandem unit arrangement and was estimated to occupy between two and three percent of the Atlantic salmon genome. Southe… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

1
9
0

Year Published

1996
1996
2010
2010

Publication Types

Select...
10

Relationship

0
10

Authors

Journals

citations
Cited by 19 publications
(10 citation statements)
references
References 34 publications
1
9
0
Order By: Relevance
“…In general, late replication regions are associated with a repressed transcription status while early replication should correspond to transcriptionally active regions (Regelsona et al 2006). Similar results regarding distinct classes of constitutive heterochromatin after replication banding, as observed in A. americanus, have been reported in other fish species as well (Almeida Toledo et al 1988, Abuin et al 1994, Boron 2003.…”
Section: Discussionsupporting
confidence: 62%
“…In general, late replication regions are associated with a repressed transcription status while early replication should correspond to transcriptionally active regions (Regelsona et al 2006). Similar results regarding distinct classes of constitutive heterochromatin after replication banding, as observed in A. americanus, have been reported in other fish species as well (Almeida Toledo et al 1988, Abuin et al 1994, Boron 2003.…”
Section: Discussionsupporting
confidence: 62%
“…The case of D. phaeopleura is particularly remarkable, with a translocation of a part of the tip, bearing an NOR, from one chromosome to its homologue, and the presence in some individuals of a supernumerary chromosome 4. The heteromorphism of homologous NORs has been well documented both in animals (Delany et al, 1991;Abuin et al, 1996;Hirai et al, 1998;Mandrioli et al, 1999) and plants (Miller et al, 1980;Moscone et al, 1995;Zoldos et al, 1999). This may be related to differences in the ribosomal gene copy number at homologous sites, which has been attributed to unequal crossing over (Fitch et al, 1990;Dover et al, 1993;Delany and Krupkin, 1999;Mandrioli et al, 1999).…”
Section: Resultsmentioning
confidence: 97%
“…In teleosteans, the 18S rDNA sites nearly always comprise large GC-rich DNA fractions (Schmid and Guttenbach, 1988;Mantovani et al, 2004), indicating that ribosomal genes are interspersed with GC-rich DNA heterochromatin (Pendás et al, 1993;Abuín et al, 1996). Up to seven of the 22 18S rDNA sites of A. janeiroensis had transcription activity with intra-and inter-individual variation in the Ag-NOR number.…”
Section: Discussionmentioning
confidence: 99%