| General information |
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Rineloricaria malabarbai (Rodriguez Reis, 2008) |
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| Synonyms |
- |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
Freshwater |
| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Siluriformes; Loricariidae. |
| Geographical distribution |
Brazil |
| Occurrence |
native: Brazil |
| Remarks |
Secondary constriction (sometimes heteromorphic) found on short arm of chromosome pair 10. |
| Karyological information |
| Geographical area of study |
Forquetinha River- Canudos do Vale, Rio Grande do Sul (SATL), Brazil. |
| Source of chromosomes |
Kidney cells. |
| Number of specimens with sex |
7 (2 male, 4 female, 1 unidentified). |
| Diploid chromosome number |
64 |
| Karyotype formula |
4m/sm+ 60st/a |
| Fundamental arm number |
- |
| Chromosome length |
- |
| Sex chromosome |
- |
| Chromosome staining/banding/FISH |
C-banding revealed pericentromeric heterochromatin blocks in most chromosomes and a large and heteromorphic block on short arm of the pair 10. 18S rDNA sites found on short arm of pair 10 (coincident with secondary constriction) and multiple sites of 5S rDNA on short arms of chromosome pairs 12, 16, 17 and 22. |
| Reference |
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. |
| Cross Link |