ArticleChromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology1999
Classical and molecular cytogenetics of the pufferfish Tetraodon nigroviridis.
Article in Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 38 citations in OpenAlex.
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- Multiple independent chromosomal fusions accompanied the radiation of the Antarctic teleost genus Trematomus (Notothenioidei:Nototheniidae).BMC evolutionary biology · 2020Article
- Construction of a High-Density Genetic Linkage Map and QTL Mapping for Growth-Related Traits in Takifugu bimaculatus.Marine biotechnology (New York, N.Y.) · 2020Article
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- Cold Fusion: Massive Karyotype Evolution in the Antarctic Bullhead NotothenG3 (Bethesda, Md.) · 2017Article
- Condensin, master organizer of the genome.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2017Review
- Cytogenetic characterization of three Balistoidea fish species from the Atlantic with inferences on chromosomal evolution in the families Monacanthidae and Balistidae.Comparative cytogenetics · 2011Article
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- Four-hundred million years of conserved synteny of human Xp and Xq genes on three Tetraodon chromosomes.Genome research · 2002Article
- Cytogenetic and molecular analysis of the pufferfish Tetraodon fluviatilis (Osteichthyes).Genetica · 2001Article
- Characterization and repeat analysis of the compact genome of the freshwater pufferfish Tetraodon nigroviridis.Genome research · 2000Article
- Molecular cloning and characterization of the Fugu rubripes MEST/COPG2 imprinting cluster and chromosomal localization in Fugu and Tetraodon nigroviridis.Chromosome research : an international journal on the molecular, supramolecular and evolutionary aspects of chromosome biology · 2000Article
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Authors and funding
6 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Because of its highly compact genome, the pufferfish has become an important animal model in genome research. Although the small chromosome size renders chromosome analysis difficult, we have established both classical and molecular cytogenetics in the freshwater pufferfish Tetraodon nigroviridis (TNI). The karyotype of T. nigroviridis consists of 2n = 42 biarmed chromosomes, in contrast to the known 2n = 44 chromosomes of the Japanese pufferfish Fugu rubripes (FRU). RBA banding can identify homologous chromosomes in both species. TNI 1 corresponds to two smaller FRU chromosomes, explaining the difference in chromosome number. TNI 2 is homologous to FRU 1. Fluorescence in-situ hybridization (FISH) allows one to map single-copy sequences, i.e. the Huntingtin gene, on chromosomes of the species of origin and also on chromosomes of the heterologous pufferfish species. Hybridization of total genomic DNA shows large blocks of (species-specific) repetitive sequences in the pericentromeric region of all TNI and FRU chromosomes. Hybridization with cloned human rDNA and classical silver staining reveal two large and actively transcribed rRNA gene clusters. Similar to the situation in mammals, the highly compact pufferfish genome is endowed with considerable amounts of localized repeat DNAs.
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