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Cytogenetic characterization of distinct B chromosomes in a population of the fish Astyanax bockmanni (Teleostei, Characiformes)
(Univ Florence Botany Inst, 2014)
Cytogenetic characterization of distinct B chromosomes in a population of the fish Astyanax bockmanni (Teleostei, Characiformes)
(Univ Florence Botany Inst, 2012-01-01)
Individuals of Astyanax bockmanni from one population belonging to the Paranapanema River basin, southeastern Brazil, were cytogenetically examined. In the present paper, we report a diploid number of 50 chromosomes, with ...
Determinação do fenótipo sexual em uma criança com Mosaicismo 45,X/46,X,Idic(Yp): importância da proporção relativa da linhagem 45,X no tecido gonadal
(Universidade Federal de São Paulo (UNIFESP), 2006-12-31)
We report here on a girl who, despite her 45,X/46,X,der(Y) karyotype, showed no signs of virilization or physical signs of the Ullrich-Turner syndrome [UTS], except for a reduced growth rate. After prophylactic gonadectomy ...
Pseudoautosomal abnormalities in terminal AZFb+c deletions are associated with isochromosomes Yp and may lead to abnormal growth and neuropsychiatric function
(Oxford University Press, 2017)
© The Author 2016. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology. All rights reserved. STUDY QUESTION: Are copy number variations (CNVs) in the pseudoautosomal ...
Efeitos de cromossomos B em vias de regulação da expressão gênica no ciclídeo Astatotilapia latifasciata
(Universidade Estadual Paulista (Unesp), 2017-06-27)
Cromossomos supernumerários são polimorfismos numéricos frequentemente registrados em eucariotos, sendo que seus efeitos são pouco elucidados. Em alguns indivíduos da espécie Astatotilapia latifasciata pode-se identificar ...
Constitutive heterochromatin, G-bands and nucleolus-organizer regions in four species of Didelphidae (Marsupialia)
(1982-02-01)
Chromosomes of Didelphis albiventris, D. marsupialis, Philander opossum and Lutreolina crassicaudata, four species of marsupials with very similar karyotypes and 2n=22 were studied. All the chromosomes were acrocentrics ...
Constitutive heterochromatin, G-bands and nucleolus-organizer regions in four species of Didelphidae (Marsupialia)
(1982-02-01)
Chromosomes of Didelphis albiventris, D. marsupialis, Philander opossum and Lutreolina crassicaudata, four species of marsupials with very similar karyotypes and 2n=22 were studied. All the chromosomes were acrocentrics ...
The B chromosomes of the African cichlid fish Haplochromis obliquidens harbour 18S rRNA gene copies
(Biomed Central Ltd., 2010-01-05)
Background: Diverse plant and animal species have B chromosomes, also known as accessory, extra or supernumerary chromosomes. Despite being widely distributed among different taxa, the genomic nature and genetic behavior ...
The B chromosomes of the African cichlid fish Haplochromis obliquidens harbour 18S rRNA gene copies
(Biomed Central Ltd., 2010-01-05)
Background: Diverse plant and animal species have B chromosomes, also known as accessory, extra or supernumerary chromosomes. Despite being widely distributed among different taxa, the genomic nature and genetic behavior ...