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Natural triploidy in Astyanax scabripinnis (Pisces, Characidae) and simultaneous occurrence of macro B-chromosomes
(1994-01-01)
The occurrence of natural triploidy in two specimens of Astyanax scabripinnis collected in the Araquá river and in the Córrego das Pedras stream, respectively, is noticed. The triploid specimen from the Araquá river presented ...
Cytogenetic Mapping of the Retroelements Rex1, Rex3 and Rex6 among Cichlid Fish: New Insights on the Chromosomal Distribution of Transposable Elements
(Karger, 2011-01-01)
To enhance our understanding of the organization of the genome and chromosome evolution of cichlid fish species, we have isolated and physically mapped onto the chromosomes the transposable elements (TEs) Rex1, Rex3 and ...
The lowest diploid number in Testudines: Banding patterns, telomeric and 45S rDNA FISH in Peltocephalus dumerilianus, 2n = 26 and FN = 52 (Pleurodira, Podocnemididae)
(Ribeirão Preto, 2014)
The karyotype of the big-headed Amazon River turtle, Peltocephalus dumerilianus, is characterized based on a sample of seven juveniles from Reserva Biológica do Rio Trombetas, Pará State, Brazil (1°30′ S, 56°34′ W). Here ...
Cytogenetic characterization of a supernumerary chromosome segment and of B-chromosomes in Astyanax scabripinnis (Teleostei, Characidae)
(Kluwer Academic Publ, 2000-01-01)
The chromosome complement of a local population of Astyanax scabripinnis in Brazil was investigated with emphasis on the study of the heterochromatin attached to the A-chromosomes and present in the macro B-chromosome. ...
Classical and molecular cytogenetic analysis in Chelonoidis carbonaria and Phrynops geoffroanus (Testudines)
(Funpec-editora, 2011-01-01)
CYTOGENETIC ANALYSIS OF THE BRAZILIAN BLIND CATFISH PIMELODELLA-KRONEI AND ITS PRESUMED ANCESTOR, P-TRANSITORIA
(Univ Florence Botany Inst, 1992-07-01)
Karyotypes of the blind catfish Pimelodella kronei from three different caves in the southwestern part of the State of São Paulo, Brazil, and of its presumed ancestor Pimelodella transitoria were examined. Chromosome number ...
Karyotypic diversity in four species of the genus Gymnotus Linnaeus, 1758 (Teleostei, Gymnotiformes, Gymnotidae): physical mapping of ribosomal genes and telomeric sequences
(Zoological Inst, 2011-01-01)
Conventional (Giemsa, C-Banding, Ag-NORs, CMA3) and molecular (5S rDNA, 18S rDNA, telomeric sequences) cytogenetic studies were carried out in specimens of ten distinct fish populations of the genus Gymnotus (G. sylvius ...
Cytogenetic analysis and detection of KAL-1 gene deletion with fluorescence in situ hybridization (FISH) in patients with Kallmann syndrome
(Sociedade Brasileira de Endocrinologia e Metabologia, 2001)
First Insights On The Retroelement Rex1 In The Cytogenetics Of Frogs
(BIOMED CENTRAL LTDLONDON, 2015)
Cytogenetic analysis of the Brazilian blind catfish Pimelodella kronei and its presumed ancestor, P. transitoria
(1992-01-01)
Karyotypes of the blind catfish Pimelodella kronei from three different caves in the southwestern part of the State of São Paulo, Brazil, and of its presumed ancestor Pimelodella transitoria were examined. Chromosome number ...