General information
Cichlasoma facetum (Jenyns, 1842)  
   
Common nameChameleon cichlid
Valid name Australoheros facetus (Jenyns, 1842)
Synonyms
Heros autochthon Gunther, 1862
Heros jenynsii Steindachner, 1869
Chromys oblonga Castelnau 1855
Herichthys facetum (Jenyns, 1842)
Chromys oblonga Castelnau 1855
Heros autochthon Gunter, 1862
Heros jenynsii Steindachner, 1869
IUCN Red List status (2014)
Not Reported
Habitat
Freshwater
Systematics
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Euteleostei; Neoteleostei; Acanthomorpha; Acanthopterygii; Percomorpha; Perciformes; Cichlidae.
Geographical distribution Spain; Portugal; Brazil; Argentina; Chile; Uruguay
Occurrence introduced: Spain; introduced: Portugal; native: Brazil; native: Argentina; introduced: Chile; native: Uruguay
Importance Sports/ornamental
Karyological information
Record 1
Geographical area of study Campo Novo stream, Bauru, Paraitinguinha river, Salesopolis, Sao Paulo, Brazil
Source of chromosomes Kidney
Number of specimens with sex 6
Diploid chromosome number 48
Karyotype formula 6m/sm+42st/a
Fundamental arm number Not reported
Chromosome length Not reported
Sex chromosome Not detected
Chromosome staining/banding/FISH Nil
Reference Poletto AB, Ferreira IA, Cabral-de-Mello DC, Nakajima RT, Mazzuchelli J, Ribeiro HB, Venere PC, Nirchio M, Kocher TD, Martins C (2010). Chromosome differentiation Patterns During Cichlid Fish Evolution. BMC Genetics, 11: 50.
Karyology remarks
Record 2
Geographical area of study Registro SP, Rio Claro-SP, Brazil
Source of chromosomes Kidney
Number of specimens with sex 31 (23 males; 08 females)
Diploid chromosome number 48
Karyotype formula 10m/sm+38st/a
Fundamental arm number 58
Chromosome length Not reported
Sex chromosome Not reported
Chromosome staining/banding/FISH Not reported
Reference Feldberg E, Bertollo LAC (1985). Karyotypes of 10 species of Neotropical cichlids (Pisces, Perciformes). Caryologia, 38(3-4): 257-268.
Record 3
Geographical area of study Sao Goncalo Stream and the Polegar Lake, Rio Grande Municipality, coastal plain of Rio Grande do Sul State, Brazil.
Source of chromosomes Anterior kidney
Number of specimens with sex 5
Diploid chromosome number 48
Karyotype formula 22 sm + 26 st/a
Fundamental arm number 70
Chromosome length Not reported
Sex chromosome Not reported
Chromosome staining/banding/FISH C-positive bands located were located on centromeric/pericentromeric regions. The nucleolar organizing regions, evidenced by silver nitrate and FISH with 18S rDNA and fluorochromes CMA3/DAPI double staining, were located in the sub-terminal region of the short arms of the second pair of chromosomes.
Reference Perazzo G, Noleto RB, Vicari MR, Machado PC, Gava A, Cestari MM (2011). Chromosomal studies in Crenicichla lepidota and Australoheros facetus (Cichlidae, Perciformes) from extreme Southern Brazil. Reviews in Fish Biology and Fisheries, 21: 509–515.
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