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