Chromosome Rearrangements
Mostrando 13-24 de 637 artigos, teses e dissertações.
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13. Intra- and interspecific chromosome polymorphisms in cultivated Cichorium L. species (Asteraceae)
Endive (Cichorium endivia L.) and chicory (C. intybus L.) both have 2n = 18, but until now, there has been no detailed karyomorphological characterization. The present work evaluated five accessions of each species using FISH with rDNA probes and fluorochrome staining with CMA and DAPI. Both species presented distinct banding patterns after fluorochrome stai
Genet. Mol. Biol.. Publicado em: 19/07/2013
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14. Intrachromosomal amplification of chromosome 21 (iAMP21) detected by ETV6/RUNX1 FISH screening in childhood acute lymphoblastic leukemia: a case report
Chromosome abnormalities that usually define high-risk acute lymphoblastic leukemia are the t(9;22)/ breakpoint cluster region protein-Abelson murine leukemia viral oncogene homolog 1, hypodiploid with < 44 chromosomes and 11q23/ myeloid/lymphoid leukemia gene rearrangements. The spectrum of acute lymphoblastic leukemia genetic abnormalities is nevertheless
Rev. Bras. Hematol. Hemoter.. Publicado em: 2013
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15. Citogenética comparativa em espécies de Hypostomus (Siluriformes, Loricariidae, Hypostominae) : contribuição da fração repetitiva do genoma para a diversidade cromossômica do grupo
Hypostomus is the widest genus of the armored catfishes in South America. This group presents a great diversity in color pattern and morphology, and shows not conservative chromosomal features. Different classes of repetitive DNAs have distinct evolutionary dynamics in the genome of eukaryotes. Therefore, analyses and distribution of these sequences in chrom
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/11/2012
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16. Three decades of studies on chromosomal polymorphism of Drosophila willistoni and description of fifty different rearrangements
Drosophila willistoni (Insecta, Diptera) is considered a paradigm for evolutionary studies. Their chromosomes are characterized by multiple paracentric inversions that make it hard to identify and describe chromosomal poly-morphisms. In the present report we attempted to systematize the description of all the 50 inversions found in the last three decades, si
Genet. Mol. Biol.. Publicado em: 2012
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17. Molecular basis for the diagnosis and treatment of acute promyelocytic leukemia
Acute promyelocytic leukemia is characterized by gene rearrangements that always involve the retinoic acid receptor alpha on chromosome 15. In the majority of patients t(15;17) is detected, which generates the promyelocytic leukemia gene/retinoic acid receptor alpha rearrangement. This rearrangement interacts with several proteins, including the native promy
Revista Brasileira de Hematologia e Hemoterapia. Publicado em: 2012
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18. Characterization of alpha thalassemic genotypes by multiplex ligation-dependent probe amplification in the Brazilian population
Alpha-thalassemia is the most common inherited disorder of hemoglobin synthesis. Genomic deletions involving the alpha-globin gene cluster on chromosome 16p13.3 are the most frequent molecular causes of the disease. Although common deletions can be detected by a single multiplex gap-PCR, the rare and novel deletions depend on more laborious techniques for th
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-01
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19. CitogenÃtica em peixes de cabeceiras de dois riachos pertencentes à bacia do Alto rio ParanÃ, regiÃo de Toledo (PR) / Cytogenetic in fishes from two headwaters streams belonging to the Upper Paranà river basin, Toledo (PR)
Cytogenetics studies were carried out in two genera of fishes from Pindorama and Lopei streams, Upper Paranà River basin, with cytossistematic and ecologic-evolutionary approaches. In Heptapterus mustelinus, the first cytogenetics characterization in the genus was carried out, verifying 54 chromosomes (26m+18sm+4st+6a), which is a diploid number not observe
Publicado em: 2011
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20. Maintenance of syntenic groups between Cathartidae and Gallus gallus indicates symplesiomorphic karyotypes in new world vultures
Similarities between New World and Old World vultures have been interpreted to reflect a close relationship and to suggest the inclusion of both in Accipitridae (Falconiformes). However, deeper analyses indicated that the placement of the New World vultures (cathartids) in this Order is uncertain. Chromosome analysis has shown that cathartids retained a kary
Genetics and Molecular Biology. Publicado em: 22/12/2010
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21. Cytogenetics studies in Brazilian species of Pseudophyllinae (Orthoptera: Tettigoniidae): 2n(♂)=35 and fn=35 the probable basic and ancestral karyotype of the family tettigoniidae
The karyotypes of five species of Brazilian Pseudophyllinae belonging to four tribes were here studied. The data available in the literature altogether with those obtained with species in here studied allowed us to infer that 2n(♂)=35 is the highest chromosome number found in the family Tettigoniidae and that it is present in species belonging to Pseudophy
Neotropical Entomology. Publicado em: 2010-08
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22. Cytogenetic analysis of three sea catfish species (Teleostei, Siluriformes, Ariidae) with the first report of Ag-NOR in this fish family
Despite their ecological and economical importance, fishes of the family Ariidae are still genetically and cytogenetically poorly studied. Among the 133 known species of ariids, only eight have been karyotyped. Cytogenetic analyses performed on Genidens barbus and Sciades herzbergii revealed that both species have 2n = 56 chromosomes and Cathorops aff. mapal
Genetics and Molecular Biology. Publicado em: 30/04/2010
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23. Chromosomal organization and phylogenetic relationships in Hypochaeris species (Asteraceae) from Brazil
The association of cytogenetic and molecular techniques has contributed to the analysis of chromosome organization and phylogeny in plants. The fluorochrome GC-specific CMA3, fluorescent in situ hybridization (FISH) and RAPD (Random Amplified Polymorphic DNA) markers were used to investigate chromosome structure and genetic relationships in Hypochaeris (Aste
Publicado em: 2010
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24. Synteny of human chromosomes 14 and 15 in the platyrrhines (Primates, Platyrrhini)
In order to study the intra- and interspecific variability of the 14/15 association in Platyrrhini, we analyzed 15 species from 13 genera, including species that had not been described yet. The DNA libraries of human chromosomes 14 and 15 were hybridized to metaphases of Alouatta guariba clamitans, A. caraya, A. sara, Ateles paniscus chamek, Lagothrix lagoth
Genetics and Molecular Biology. Publicado em: 28/08/2009