Danio rerio ';
General information
 
Danio rerio (Hamilton, 1822)
 
 
Common nameZebra danio, Zebrafish, Anju
Synonyms
Barilius rerio (Hamilton, 1822)
Brachydanio rerio (Hamilton, 1822)
Brachydanio frankei Meinken, 1963
Cyprinus chapalio Hamilton, 1822
Cyprinus rerio Hamilton, 1822
Danio frankei (Meinken, 1963)
Danio lineatus Day, 1868
Nuria rerio (Hamilton, 1822)
Perilampus striatus McClelland, 1839
IUCN Red List status (2014)
Least Concern (LC)
Habitat
Freshwater
Systematics
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Cypriniformes; Cyprinidae.
Geographical distribution
India; Japan; Bangladesh; Sri Lanka; Pakistan; Philippines; Myanmar; Bhutan; Nepal; USA; Colombia; Martinique
Occurrence Native: India, Bangladesh, Pakistan, Myanmar, Bhutan, Nepal
Introduced: Japan, Sri Lanka, Philippines, USA, Colombia, Martinique
Importance
Zebrafish is an excellent model organism for the study of developmental biology and biomedical research, monitoring clinical trial for diseases and drug discovery and development. This species poses transparent embryo and larvae and highly fertile with up to 200 embryos every 7 days and undergo rapid external development. (Tavares and Santos, 2013).
Remarks
Model species
Karyological information
Geographical area of study Purchased commercially
Source of chromosomes
Kidney
Number of specimens with sex
5 females
Diploid chromosome number
50
Karyotype formula
4m+16sm+30st
Fundamental arm number
100
Chromosome length
Not reported
Sex chromosome
Not reported
Chromosome staining/banding/FISH
Constitutuive heterochromatin on centromeric region of all chromosomes; AgNORs were present terminally on chr. pair 1, 2 and 8; chromosome pairs could be identified by replication banding pattern.
Reference(s)
Daga RR, Thode G, Amoves A (1996). Chromosome ccomplement, C-banding, Ag-NOR and replication banding in the Zebrafish Danio rerio. Chromosome Research, 4:29-32.