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https://repositorio.inpa.gov.br/handle/1/19497| Title: | Karyotype evolution in Curimatidae (Teleostei, Characiformes) from the Amazon region. II. Centric fissions in the genus Potamorhina |
| Authors: | Feldberg, Eliana Porto, Jorge Ivan Rebelo Nakayama, Celeste Mutuko Bertollo, Luiz Antônio Carlos |
| Keywords: | Animals Cell Fish Karyotype Evolution Nonhuman Phylogeny Robertsonian Chromosome Translocation Animalsia Characiformes Curimatidae Potamorhina Potamorhina Latior Pristigaster Robertsonia Teleostei |
| Issue Date: | 1993 |
| metadata.dc.publisher.journal: | Genome |
| metadata.dc.relation.ispartof: | Volume 36, Número 2, Pags. 372-376 |
| Abstract: | Using cytogenetic analysis following Giemsa staining, nucleolar organizer region (NOR) staining, and C-banding, three distinct karyotypes in three species of curimatids belonging to the fish genus Potamorhina were identified: 2n = 54/44 M + 10 SM (P. pristigaster), 2n = 56/52 M + 2 SM + 2 ST (P. latior), and 2n = 102/2 M + 2 SM + 98 A (P. altamazonica). A 2n = 54 was considered to be the ancestral diploid number and the different karyotypes were probably the result of centric fissions. Both the NOR pattern and constitutive heterochromatin pattern are species specific. |
| metadata.dc.identifier.doi: | 10.1139/g93-051 |
| Appears in Collections: | Artigos |
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