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

Swarça, Ana Claudia; Dias, Ana Lucia; Fenocchio, Alberto Sergio

dc.creator	Swarça, Ana Claudia
dc.creator	Dias, Ana Lucia
dc.creator	Fenocchio, Alberto Sergio
dc.date.accessioned	2023-01-26T13:56:41Z
dc.date.available	2023-01-26T13:56:41Z
dc.date.issued	2017-03-06
dc.identifier.citation	Swarça, 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.	es_AR
dc.identifier.issn	1993-078X
dc.identifier.other	CCPI-CNyE-A-034
dc.identifier.other	6745
dc.identifier.uri	https://hdl.handle.net/20.500.12219/4338
dc.description	Fil: Swarça, Ana Claudia. Universidad Estatal de Londrina. Centro de Ciencias Biológicas. Departamento de Histología; Brasil.	es_AR
dc.description	Fil: Dias, Ana Lucia. Universidad Estatal de Londrina. Centro de Ciencias Biológicas. Departamento de Histología; Brasil.	es_AR
dc.description	Fil: Fenocchio, Alberto Sergio. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales. Departamento de Genética; Argentina.	es_AR
dc.description	Fil: Fenocchio, Alberto Sergio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Biología Subtropical; Argentina.	es_AR
dc.description	Fil: Fenocchio, Alberto Sergio. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales. Instituto de Biología Subtropical; Argentina.	es_AR
dc.description.abstract	The 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.	en
dc.format	application/pdf
dc.format.extent	464.9 KB
dc.language.iso	eng	en
dc.publisher	Pensoft	en
dc.relation	info:eu-repo/semantics/altIdentifier/url/https://compcytogen.pensoft.net/article/11152/
dc.rights	info:eu-repo/semantics/openAccess
dc.rights.uri	http://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subject	Neotropical fish	en
dc.subject	Parrot catfish	en
dc.subject	Karyotype	en
dc.subject	Ag-NORs	en
dc.subject	18S rDNA	en
dc.subject	CMA3	en
dc.subject	C-banding	en
dc.title	Cytogenetic studies in the redtail catfish, Phractocephalus hemioliopterus (Bloch & Schneider, 1801) (Siluriformes, Pimelodidae) a giant fish from Amazon basin	en
dc.type	info:eu-repo/semantics/article
dc.type	info:ar-repo/semantics/artículo
dc.type	info:eu-repo/semantics/publishedVersion