Cytogenetic studies in the redtail catfish, Phractocephalus hemioliopterus (Bloch & Schneider, 1801) (Siluriformes, Pimelodidae) a giant fish from Amazon basin

dc.creatorSwarça, Ana Claudia
dc.creatorDias, Ana Lucia
dc.creatorFenocchio, Alberto Sergio
dc.date.accessioned2023-01-26T13:56:41Z
dc.date.accessioned2023-03-28T12:58:25Z
dc.date.available2023-01-26T13:56:41Z
dc.date.available2023-03-28T12:58:25Z
dc.date.created2023-01-26T13:56:41Z
dc.date.issued2017-03-06
dc.identifierSwarça, A. C., Dias, A. L., y Fenocchio, A. S. (2017). Cytogenetic studies in the redtail catfish, Phractocephalus hemioliopterus (Bloch & Schneider, 1801) (Siluriformes, Pimelodidae) a giant fish from Amazon basin. Comparative Cytogenetics: Revista internacional de citogenética vegetal y animal, Cariosistemática y sistemática molecular. Bulgaria : Pensoft; 11(1), pp. 119-128.
dc.identifier1993-078X
dc.identifierCCPI-FCEQyN-A-034
dc.identifier6745
dc.identifierhttps://hdl.handle.net/20.500.12219/4338
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/6285322
dc.description.abstractThe objective of this study was to cytogenetically analyze Phractocephalus hemioliopterus comparing the findings with other data to infer relationships among Pimelodidae species. The results revealed a diploid number of 2n = 56 and the karyotype composed of 16 metacentric, 20 submetacentric, 6 subtelocentric and 14 acrocentric chromosomes (FN = 98). The Ag-NORs, 18S rDNA and CMA3 signals were coincident in location occupying the short arm of an acrocentric chromosome pair (23th), in a secondary constriction. The 5S rDNA genes were localized near the centromere on the short arms of one submetacentric chromosome pair. C-bands were localized predominantly in the terminal regions of chromosomes, including the AgNORs and a small metacentric pair with a conspicuous positive band on interstitial region. This chromosome pair could be considered a species-specific cytogenetic marker.
dc.languageeng
dc.publisherPensoft
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://compcytogen.pensoft.net/article/11152/
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectNeotropical fish
dc.subjectParrot catfish
dc.subjectKaryotype
dc.subjectAg-NORs
dc.subject18S rDNA
dc.subjectCMA3
dc.subjectC-banding
dc.titleCytogenetic studies in the redtail catfish, Phractocephalus hemioliopterus (Bloch & Schneider, 1801) (Siluriformes, Pimelodidae) a giant fish from Amazon basin
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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