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dc.contributor.author
Suarez, Pablo
dc.contributor.author
Pinto Barroso, Inaê Cristina Guerreiro
dc.contributor.author
Silva, Danilo dos Santos
dc.contributor.author
Milhomem, Susana S. R.
dc.contributor.author
Cabral de Mello, Diogo Cavalcanti
dc.contributor.author
Martins, Cesar
dc.contributor.author
Pieczarka, Julio Cesar
dc.contributor.author
Nagamachi, Cleusa Yoshiko
dc.date.available
2018-05-28T18:17:33Z
dc.date.issued
2017-06
dc.identifier.citation
Suarez, Pablo; Pinto Barroso, Inaê Cristina Guerreiro; Silva, Danilo dos Santos; Milhomem, Susana S. R.; Cabral de Mello, Diogo Cavalcanti; et al.; Highest diploid number among Gymnotiformes: first cytogenetic insights into Rhabdolichops (Sternopygidae); Mary Ann Liebert; Zebrafish; 14; 3; 6-2017; 272-279
dc.identifier.issn
1545-8547
dc.identifier.uri
http://hdl.handle.net/11336/46291
dc.description.abstract
We report the first comparative cytogenetic analysis of two species from electrogenic fish of genus Rhabdolichops (Sternopygidae, Gymnotiformes): Rhabdolichops troscheli and Rhabdolichops cf eastwardi. R. troscheli has 2n = 54 (fundamental number [FN] = 66), whereas R. cf. eastwardi has 2n = 74 (FN = 78). C-banding revealed centromeric constitutive heterochromatin in both species. Ag-NORs mapped on pair 6 in R. troscheli and pair 30 in R. cf eastwardi. Fluorescense in situ hybridization with 18S rDNA probes confirmed the Ag-NOR staining results and revealed additional (presumably silent) ribosomal genes on pairs 12, 13, 21, 23, 26, and 27 in R. cf eastwardi. 5S rDNA was found on the centromeres of pair 7 in both species. Telomeric probes showed only distal locations. Dispersed signal patterns were obtained using probes for retrotransposons Rex1 and Rex3. Histone H1 and H3 genes were found together on pair 6 in R. cf eastwardi. The high diploid number found in Rhabdolichops suggests that chromosome fission may have contributed to its chromosomal evolution, phylogenetic relationship of the Sternopygidae suggests that this increase in diploid number could be a synapomorphic characteristic of genus Rhabdolichops. Although both species are phylogenetically close related, their karyotype structure has undergone divergent evolutionary directions. All in all, our results strongly suggest that R. cf eastwardi experencied recent intense genome reorganization.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Mary Ann Liebert
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Electric Fish
dc.subject
Chromosomes
dc.subject
Biodiversity
dc.subject
Amazon Rainforest
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Kariyotypic Diversity
dc.subject.classification
Otras Ciencias Biológicas
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Highest diploid number among Gymnotiformes: first cytogenetic insights into Rhabdolichops (Sternopygidae)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-05-16T14:45:05Z
dc.identifier.eissn
1557-8542
dc.journal.volume
14
dc.journal.number
3
dc.journal.pagination
272-279
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Nueva York
dc.description.fil
Fil: Suarez, Pablo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú | Universidad Nacional de Misiones. Instituto de Biología Subtropical. Instituto de Biología Subtropical - Nodo Puerto Iguazú; Argentina. Universidade Federal do Pará; Brasil
dc.description.fil
Fil: Pinto Barroso, Inaê Cristina Guerreiro. Universidade Federal do Pará; Brasil
dc.description.fil
Fil: Silva, Danilo dos Santos. Universidade do Estado de Pará; Brasil
dc.description.fil
Fil: Milhomem, Susana S. R.. Instituto Federal de Educação, Ciência e Tecnologia de Góias; Brasil
dc.description.fil
Fil: Cabral de Mello, Diogo Cavalcanti. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
dc.description.fil
Fil: Martins, Cesar. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil
dc.description.fil
Fil: Pieczarka, Julio Cesar. Universidade Federal do Pará; Brasil
dc.description.fil
Fil: Nagamachi, Cleusa Yoshiko. Universidade Federal do Pará; Brasil
dc.journal.title
Zebrafish
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://online.liebertpub.com/doi/full/10.1089/zeb.2016.1405
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1089/zeb.2016.1405
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