ArticleGenetica2009
Chromosomal localization of 18S and 5S rDNA using FISH in the genus Tor (Pisces, Cyprinidae).
Article in Genetica, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 29 citations in OpenAlex.
- Chromosomal study of Khawia abbottinae (Cestoda: Caryophyllidea): karyotype and localization of telomeric and ribosomal sequences after fluorescence in situ hybridization (FISH).Parasitology research · 2019Article
- Nucleolar Dominance in a Tetraploidy Hybrid Lineage Derived FromFrontiers in genetics · 2018Article
- Chromosomes of Asian cyprinid fishes: cytogenetic analysis of two representatives of small paleotetraploid tribe Probarbini.Molecular cytogenetics · 2018Article
- Unique nucleolar dominance patterns in distant hybrid lineage derived from Megalobrama Amblycephala × Culter Alburnus.BMC genetics · 2016Article
- Evidence of birth-and-death evolution of 5S rRNA gene in Channa species (Teleostei, Perciformes).Genetica · 2016Article
- Article
- Molecular cytogenetic analysis of the crucian carp, Carassius carassius (Linnaeus, 1758) (Teleostei, Cyprinidae), using chromosome staining and fluorescence in situ hybridisation with rDNA probes.Comparative cytogenetics · 2014Article
- Chromosome breakages associated with 45S ribosomal DNA sequences in spotted snakehead fish Channa punctatus.Molecular biology reports · 2013Article
- Article
- Characterization of two freshwater silurid catfish using conventional and molecular cytogenetic techniques.Journal of genetics · 2011Article
- Are ribosomal DNA clusters rearrangement hotspots?: a case study in the genus Mus (Rodentia, Muridae).BMC evolutionary biology · 2011Article
- Nucleotide variation and physical mapping of ribosomal genes using FISH in genus Tor (Pisces, Cyprinidae).Molecular biology reports · 2011Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Dual color fluorescence in situ hybridization (FISH) was performed to study the simultaneous chromosomal localization of 18S and 5S ribosomal genes in the genus Tor for the first time. The 18S and 5S rDNAs in four Tor species were amplified, sequenced and mapped on the metaphase chromosomes. The number and distribution of 18S and 5S rDNA clusters were examined on metaphase chromosome spreads using FISH. The specimens of T. chelynoides, T. putitora and T. progeneius showed six bright fluorescent signals of 18S rDNA and T. tor exhibited ten such signals. The 5S rDNA signals were present only on one pair of chromosomes in all the four Tor species. Ag-NORs were observed on two pairs of chromosomes in T. chelynoides, T. putitora, T. progeneius and four pairs in T. tor. Comparison of the observed 18S rDNA FISH signals and Ag-NORs strongly suggested a possible inactivation of NORs localized at the telomeres of a subtelocentric and telocentric chromosome pairs in all four species. The 5S rDNA contained an identical 120 bp long coding region and 81 bp long highly divergent non-transcribed spacers in all species examined. 18S and 5S rDNA sequencing and chromosomal localization can be a useful genetic marker in species identification as well as phylogenetic and evolutionary studies.
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