| General information |
|
Pygopristis denticulatus (Cuvier, 1819) |
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| Synonyms |
- |
| IUCN Red List status (2014) |
Not Reported |
| Habitat |
- |
| Systematics |
|
| Geographical distribution |
- |
| Occurrence |
- |
| 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. |
| Karyological information |
| Geographical area of study |
Demini River, Brazil. |
| Source of chromosomes |
Kidney. |
| Number of specimens with sex |
6 (2 male, 4 female) |
| Diploid chromosome number |
62 |
| Karyotype formula |
22m+26sm+4st+10a |
| Fundamental arm number |
114 |
| Chromosome length |
|
| Sex chromosome |
No heteromorphic sex-chromosome found. |
| 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. |
| Reference |
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. |
| Cross Link |