Comparative chromosome mapping of repetitive sequences. Implications for genomic evolution in the fish, Hoplias malabaricus

Table 1 Karyomorphs previously identified in Hoplias malabaricus according to Bertollo et al. (2000).

Karyomorphs	Chromosome number	Sex Chromosomes	Geographic occurrence
Group I: first chromosome pairs of similar sizes
Karyomorph A	2n = 42	-	Northen to southern Brazil, Uruguay and northen Argentina
Karyomorph B	2n = 42	XX/XY	Vale do Rio Doce (Minas Gerais State) and Iguaçú River (Paraná State, Brazil)
Karyomorph C	2n = 40	-	Northen Brazil to northen Argentina
Karyomorph D	Female - 2n = 40/Male - 2n = 39	X₁X₁X₂X₂/X₁X₂Y	Upper Paraná hydrographic basin, Brazil
Group II: first chromosome pairs with clearly distinct sizes
Karyomorph E	2n = 42	-	Trombetas River (Paraná State, Brazil)
Karyomorph F	2n = 40	-	Surinam to southeastern Brazil
Karyomorph G	Female - 2n = 40/Male - 2n = 41	XX/XY₁Y₂	Amazonian Rivers, Brazil

ISSN: 2730-6844