Abstract
the chromosome complement ofDanio rerio was investigated by Giemsa staining and C-banding, Ag-NORs and replication banding. The diploid number of this species is 2n=50 and the arm number (NF)=100. Constitutive heterochromatin was located at the centromeric position of all chromosome pairs. Nucleolus organizer regions appeared in the terminal position of the long arms of chromosomes 1, 2 and 8. Replication banding pattern allowed the identification of each chromosome pair.
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References
Amemiya CT, Gold JR (1990) Cytogenetics studies in North American minnows (Cyprinidae). XVII. Chromosomal NOR phenotypes of 12 species, with comments on cytosystematic relationships among 50 species.Hereditas 112: 231–247.
Driever W, Stemple D, Schier A, Solnica-Krezel L (1994) Zebrafish: genetic tools for studying vertebrate development.Trends Genet 10: 152–159.
Drouin R, Lemieux N, Richer C-L (1991) High-resolution R-banding at the 1250-band level. II. Comparative analysis of morphological and dynamic R-band patterns (RHG and RBG).Hereditas 114: 65–77.
Endo A, Ingalls TH (1968) Chromosomes of the Zebra Fish. A model for cytogenetic, embryologic, and ecologic study.J Hered 59: 382–384.
Giles V, Thode G, Alvarez MC (1988) Early replication bands in two scorpion fishes,Scorpaena porcus andS. notata (Order Scorpaeniformes).Cytogenet Cell Genet 47: 80–83.
Gold JR, Amemiya CT, Ellison JR (1986) Chromosomal heterochromatin differentiation in North American Cyprinid fishes.Cytologia 51: 557–566.
Hellmer A, Voiculescu I, Schempp W (1991) Replication banding studies in two cyprinid fishes.Chromosoma 100: 524–531.
Jenkin JD, Li YC, Gold JR (1992) Cytogenetic studies in North American minnows (Cyprinidae). XXVI. Chromosomal NOR phenotypes of 21 species from the Western United States.Cytologia 57: 443–453.
Levan A, Fredga K, Sandberg AA (1964) Nomenclature for centromeric position on chromosomes.Hereditas 52: 201–220.
Lopez JR, Alvarez MC, Thode G, Martinez G (1988) Karyotype divergence insymphodus melops andSymphodus roissali (Labridae, Perciforms): C-banded and Ag-NOR karyotypes.Genome 32: 35–39.
Postlethwait JH, Johnson SL, et al. (1994) A genetic linkage map for the zebrafish.Science 264: 699–703.
Rufas JS, Gimenez-Martin G, Esponda P (1982) Presence of a chromatid core on mitotic and meiotic chromosomes of gasshoppers.Cell Biol Int Rep 6: 261–267.
Schreeb KH, Groth G, Sachsse W, Freundt KJ (1993) The karyotype of the zebrafish (Brachydanio rerio).J. Exp Anim Sci 36: 27–31.
Summer AT (1972) A simple technique for demonstrating centromeric heterochromatin.Exp Cell Res 75: 304–306.
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Daga, R.R., Thode, G. & Amores, A. Chromosome complement, C-banding, Ag-NOR and replication banding in the zebrafishDanio reio . Chromosome Res 4, 29–32 (1996). https://doi.org/10.1007/BF02254941
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DOI: https://doi.org/10.1007/BF02254941