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Mostrando ítems 291-300 de 354
Karyotype variability in eight species of the subfamilies Loricariinae and Ancistrinae (Teleostei, Siluriformes, Loricariidae)
(2003-01-01)
Loricariidae is one of the largest fish families of the world, with about 650 species separated into six subfamilies. To date, cytogenetic data on only 56 species of this family are available. In the present study, the ...
Evidence of chromosome fusion in Gymnotus sylvius Albert & Fernandes-Matoli, 1999 (Teleostei: Gymnotiformes) detected by telomeric probes and R-banding
(UNIV FLORENCE BOTANY INST, 2010)
Gymnotus cf. carapo and Gynznotus sylvius are two fish species inhabiting the Upper Parana River Basin, presenting respectively 2n =54 and 2n = 40 chromosomes. In the present cytogenetic analysis, R-banding and telomere-sequence ...
Chromosomal imbalances detected in primary bone tumors by comparative genomic hybridization and interphase fluorescence in situ hybridization
(Sociedade Brasileira de Genética, 2003-01-01)
We applied a combination of comparative genomic hybridization (CGH) and fluorescence in situ hybridization (FISH), to characterize the genetic aberrations in three osteosarcomas (OS) and one Ewing's sarcoma. CGH identified ...
Natural triploidy and B chromosomes in Astyanax scabripinnis (Characiformes, Characidae): a new occurrence
(Univ Florence Botany Inst, 2012-01-01)
Several cases of natural triploidy have already been described in fish, however this is the first report of a surviving triploid that also carries two different supernumerary chromosomes. Cytogenetic analysis of an Astyanax ...
Physical Mapping Of 35s Rrna Genes And Genome Size Variation In Polyploid Series Of Sisyrinchium Micranthum And S-rosulatum (iridaceae: Iridoideae)
(Taylor & Francis LtdAbingdon, 2017)
Chromosomal differentiation of Hyla nana and Hyla sanborni (Anura, Hylidae) with a description of NOR polymorphism in H-nana
(Oxford University Press, 2003-03-01)
Specimens of Hyla nana and Hyla sanborni from a syntopic population were studied cytogenetically. These species are morphologically very similar and are frequently misidentified, confused with each other. Both species had ...
The Use Of Fish On Buccal Smear To Investigate Mosaicism With A 45,x Cell Line: Study On Healthy Men And Patients With Disorders Of Sex Development [uso Da Fish Em Mucosa Oral Para Investigação De Mosaicismo Com Linhagem 45,x: Estudo Com Homens Saudáveis E Pacientes Com Distúrbios Da Diferenciação Do Sexo]
(Sociedade Brasileira de Endocrinologia e Metabologia, 2014)
Revisiting the chromosomal diversification of the genus rhodnius (Stål, 1859) (Hemiptera, Triatominae)
(2021-02-01)
Although all triatomines are considered as potential vectors of the Chagas disease, the Triatoma, Panstrongylus, and Rhodnius genera are the most important from the epidemiological point of view. Based on cytogenetic ...