General information |
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| Megaleporinus reinhardti (Lütken, 1875) | ||
| Synonyms |
- |
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| IUCN Red List status (2014) | Not Reported |
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| Habitat | - |
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| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; Characoidei; Anostomidae. |
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| Geographical distribution | - |
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| Occurrence | - | |
| Importance | ||
| Remarks | 5S rDNA located at p terminal region of m pair 8 and 18S rDNA located at p terminal region of m pair 2. |
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Karyological information |
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| Geographical area of study | Gongogi River (Contas River basin) in Dario Meira, Bahia, Brazil. | |
| Source of chromosomes | Kidney |
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| Number of specimens with sex | - |
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| Diploid chromosome number | 54 |
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| Karyotype formula | 28m+26sm |
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| Fundamental arm number | 108 |
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| Chromosome length | - |
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| Sex chromosome | Female corresponds to 28m+25sm+1st karyotype. Difference in male/female karyotype indicate ZZ/ZW sex |
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| Chromosome staining/banding/FISH | C-banding revealed small amounts of heterochromatic at pericentromeric region of some autosomes. Terminal C-bands on p arm of one homologous of pair 17 observed. W chromosome presented a large heterochromatic block comprising nearly the entire q arm. Z chromosome characterized by a small heterochromatin segment from middle to distal position on q arms. |
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| Reference(s) |
Dulz TA, Azambuja M, Nascimento VD, Lorscheider CA, Noleto RB, Moreira-Filho O, Nogaroto V, Diniz D, de Mello Affonso PRA, Vicari MR (2020). Karyotypic diversification in two Megaleporinus species (Characiformes, Anostomidae) inferred from in situ localization of repetitive DNA sequences. Zebrafish, 333-341. http://doi.org/10.1089/zeb.2020.1918 |
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