Rineloricaria aequalicuspis
General information
 
Rineloricaria aequalicuspis (Reis, Cardoso, 2001)
 
 
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
Importance
Remarks
Secondary constriction (sometimes heteromorphic) found on short arm of chromosomal pair 11.
Karyological information
Geographical area of study Maquine River–Maquine, Rio Grande do Sul (SATT), Brazil.
Source of chromosomes
Kidney cells.
Number of specimens with sex
12 (4 male, 4 female, 4 unidentified)
Diploid chromosome number
68
Karyotype formula
68st/a
Fundamental arm number
Chromosome length
Sex chromosome
Chromosome staining/banding/FISH
C-banding revealed pericentromeric heterochromatin distribution in most chromosomes, and a large block on short arm of chromosome pair 8. 18S rDNA sites found on short arm of pair 8 (coincident with secondary constriction) and multiple sites of 5S rDNA on short arms of pairs 10, 23, 24, 25, 28, 29, 31 and 32.
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.