General information |
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| Rineloricaria quadrensis (Reis, 1983) | ||
| Synonyms |
- |
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| IUCN Red List status (2014) | Not Reported |
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| Habitat | Freshwater |
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| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Siluriformes; Loricariidae. |
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| Geographical distribution | Brazil |
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| Occurrence | Native: Brazil |
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| Importance | ||
| Remarks | Secondary constriction (sometimes heteromorphic) found on short arm of chromosomal pair 8. |
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Karyological information |
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| Geographical area of study | Quadros Lagoon–Capão da Canoa, Rio Grande do Sul (SATT), Brazil. | |
| Source of chromosomes | Kidney cells. |
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| Number of specimens with sex | 3 (1 male, 2 female). |
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| Diploid chromosome number | 70 |
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| Karyotype formula | 4m/sm+66st/a |
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| Fundamental arm number | - |
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| Chromosome length | - |
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| Sex chromosome | - |
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| Chromosome staining/banding/FISH | C-banding detected heterochromatic blocks in pericentromeric regions which coincide with secondary constriction of pair 11. 18S rDNA sites observed on short arm of pair 11 and multiple sites of 5S rDNA comprising eight sites on short arms of pairs 17, 18, 19, 25 and two pericentromeric sites on pair 1. |
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| Reference(s) |
Venturelli NB, Takagui FH, Pompeo LRS, Rodriguez MS, da Rosa R, Giuliano-Caetano L. (2021). Cytogenetic markers to understand chromosome diversification and conflicting taxonomic issues in Rineloricaria (Loricariidae: Loricariinae) from Rio Grande do Sul coastal drainages. Biologia 76: 2561–2572. |
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