نتایج جستجو برای: chromosome duplication
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We report a female with a deletion of 9p and concomitant duplication of 16q [46,XX,-9,+der(9),t(9;16)(p24;q13)]. Parental chromosome analysis showed a balanced maternal translocation [46,XX,t(9;16)(p24;q13)]. Three other cases of translocations involving chromosomes 9 and 16 have been reported, one of them with identical breakpoints. A review of published reports of deletion 9p and duplication ...
True isochromosomes for Xp probably do not exist in a liveborn. We describe a rare case of complete Xp duplication and retention of the inactivation centre at Xq13. Cytogenetically, it is described as a nonmosaic 46,X,psu idic(X)(q13). Complete duplication of Xpter-->Xq13 was confirmed by banded analysis and FISH probes for X centromere, Xp21, XIST locus, and whole chromosome paints for X and Y...
Jasmine (Jasminum sambac Aiton) is a well-known cultivated plant species for its fragrant flowers used in the perfume industry and cosmetics. However, genetic basis of floral scent largely unknown. In this study, using PacBio, Illumina, 10× Genomics high-throughput chromosome conformation capture (Hi-C) sequencing technologies, high-quality chromosome-level reference genome J. was obtained, exp...
Chromosome duplication (DNA synthesis) was studied in cultured cells of Chinese hamsters by means of autoradiography following thymidine-H(3) incorporation. The technique used was to expose an asynchronously dividing population of rapidly growing cells for a 10 minute interval to a medium with thymidine-H(3). Cells were then transferred to a medium with excess unlabeled thymidine. The populatio...
Abstract Genetic circuits that control specific cellular functions are never fully insulated against influences of other parts the cell. For example, they subject to periodic modulation by cell cycle through volume growth and gene doubling. To investigate possible effects on oscillatory dynamics, we modelled a simple synthetic genetic oscillator, repressilator, studied hallmarks resulting nonli...
Duplication-containing cells are selected when growth of Salmonella typhimurium is limited by the availability of any one of several carbon and energy sources. Under conditions of extreme starvation, growth occurs almost exclusively in the duplication-containing fraction of the population. Cells with duplications of one large segment of the chromosome are repeatedly selected regardless of which...
An unbalanced translocation of chromosome 1 and 7 (t[1;7]) associated with neurological phenotype and brain malformation has rarely been reported. This clinical report describes 3 siblings with brain malformations and a 13.5 Mb duplication of 1q42.3q44, and a 7.6 Mb duplication of 7q36.1q36.3 detected by array comparative genomic hybridization. This unbalanced t(1;7) was found to be inherited f...
Sixty-seven patients in 29 families with the diagnosis of Charcot-Marie-Tooth disease or hereditary motor and sensory neuropathy in northern Sweden were examined by pedigree and DNA analysis for the CMT1a duplication within chromosome 17p11.2. There were 39 patients in nine families with Charcot-Marie-Tooth type 1 and autosomal dominant inheritance and in all these cases the duplication was see...
Schizophrenia is a debilitating mental disorder affecting approximately 1% of the world's population. Childhood onset schizophrenia (COS), defined as onset before age 13, is a rare and severe form of the illness that may have more salient genetic influence. We identified a ~134 kb duplication spanning exons 2-4 of the Slit-Robo GTPase-activating protein 3 (SRGAP3) gene on chromosome 3p25.3 that...
Rearrangements in chromosome 19 are rare. Among the 35 patients with partial 19q trisomy described, only six have a breakpoint defined by array. The 19q duplication results in a variable phenotype, including dysmorphisms, intellectual disability and seizure. In a female patient, although G-banding at 550 band-resolution was normal, multiplex ligation-dependent probe amplification (MLPA) techniq...
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