| General information |
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Apeltes quadracus (Mitchill, 1815) |
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| Common name | Fourspine stickleback |
| Synonyms |
- |
| IUCN Red List status (2014) |
Least Concern (LC) |
| Habitat |
Saltwater and freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Neoteleostei; Acanthomorphata; Eupercaria; Perciformes; Cottioidei; Gasterosteales; Gasterosteidae. |
| Geographical distribution |
USA; Canada |
| Occurrence |
native: USA; native: Canada |
| Karyological information |
| Geographical area of study |
West River Memorial Park in New Haven, Connecticut, USA. |
| Source of chromosomes |
Tissue |
| Number of specimens with sex |
Not reported |
| Diploid chromosome number |
46 |
| Karyotype formula |
6m+4sm+32a+4t |
| Fundamental arm number |
56 |
| Chromosome length |
Not reported |
| Sex chromosome |
No evidence of heteromorphic sex chromosome pair. |
| Chromosome staining/banding/FISH |
Fish with BAC clones helped to analyse chromosomal rearragements between the two stickleback species. |
| Reference |
Urton JR, McCann SR, Peichel CL (2011). Karyotype differentiation between two stickleback species (Gasterosteidae). Cytogenetic and Genome Research, 135:150–159. |
| Cross Link |