General information |
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| Pygopristis denticulatus (Cuvier, 1819) | ||
| Synonyms |
- |
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| IUCN Red List status (2014) | Not Reported |
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| Habitat | - |
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| Systematics |
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| Geographical distribution | - |
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| Occurrence | - | |
| Importance | ||
| Remarks | 18S rDNA also present on chromosome pairs 24, 25, 27. The 5S rDNA present on interstitial position in chromosome pair 1 (m). Telomeric sequences (TTAGGG)n evidenced in terminal portions of all chromosomes. |
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Karyological information |
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| Geographical area of study | Demini River, Brazil. | |
| Source of chromosomes | Kidney. |
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| Number of specimens with sex | 6 (2 male, 4 female) |
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| Diploid chromosome number | 62 |
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| Karyotype formula | 22m+26sm+4st+10a |
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| Fundamental arm number | 114 |
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| Chromosome length | ||
| Sex chromosome | No heteromorphic sex-chromosome found. |
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| Chromosome staining/banding/FISH | AgNORs found on chromosome pairs 24, 25, 27. Interstitial markings evidenced in long arms of pairs 1 (m), 13 (sm) and were only centromeric in pairs 4, 9 and 11 (m). Pairs 7 and 8 (m) showed bi-telomeric markings and pairs 6 (m) and 20 (sm) showed centromeric and telomeric markings in only one arm. AgNORs were all C-band positive and located in terminal portions of chromosomes. |
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| Reference(s) |
dos Santos AG, de Sousa e Souza JF, Soares SC, Nakayama CM, Feldberg E (2023). Chromosomal characterization of three species of Serrasalmini (Serrasalmidae: Characiformes). Genetics and Molecular Biology, 46, 4, e20230088. |
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