نتایج جستجو برای: large genomic rearrangements
تعداد نتایج: 1142013 فیلتر نتایج به سال:
Analysis of genome rearrangements in molecular biology started in the late 1930's, when Dobzhansky and Sturtevant published a milestone paper presenting a rearrangement scenario with 17 inversions for the species of Drosophila. However, until recently there were no computer science results allowing a biologist to analyze genome rearrangements. The paper describes combinatorial problems motivate...
Mitochondrial (mt) genomic study may reveal significant insight into the molecular evolution and several other aspects of genome evolution such as gene rearrangements evolution, gene regulation, and replication mechanisms. Other questions such as patterns of gene expression mechanism evolution, genomic variation and its correlation with physiology, and other molecular and biochemical mechanisms...
The human and mouse genomic sequences provide evidence for a larger number of rearrangements than previously thought and reveal extensive reuse of breakpoints from the same short fragile regions. Breakpoint clustering in regions implicated in cancer and infertility have been reported in previous studies; we report here on breakpoint clustering in chromosome evolution. This clustering reveals li...
Motivation: Comrad is a novel algorithmic framework for the integrated analysis of RNA-Seq and Whole Genome Shotgun Sequencing (WGSS) data for the purposes of discovering genomic rearrangements and aberrant transcripts. The Comrad framework leverages the advantages of both RNA-Seq and WGSS data, providing accurate classification of rearrangements as expressed or not expressed and accurate class...
Campylobacter jejuni is a leading cause of food-borne illness. Although a natural reservoir of the pathogen is domestic poultry, the degree of genomic diversity exhibited by the species limits the application of epidemiological methods to trace specific infection sources. Bacteriophage predation is a common burden placed upon C. jejuni populations in the avian gut, and we show that amongst C. j...
We have determined the genomic map of the bacterium Salmonella typhi Ty2, the causal organism of typhoid fever, by using pulsed-field gel electrophoresis. Digestion of the Ty2 genome with endonucleases Xba I, Bln I, and Ceu I yielded 33, 26, and 7 fragments, respectively, that were placed in order on a circular chromosome of 4780 kb. Transposon Tn10 was inserted in specific genes of Salmonella ...
Germline CDH1 point or small frameshift mutations can be identified in 30-50% of hereditary diffuse gastric cancer (HDGC) families. We hypothesized that CDH1 genomic rearrangements would be found in HDGC and identified 160 families with either two gastric cancers in first-degree relatives and with at least one diffuse gastric cancer (DGC) diagnosed before age 50, or three or more DGC in close r...
BACKGROUND Conventional Sanger sequencing reliably detects the majority of genetic mutations associated with hereditary cancers, such as single-base changes and small insertions or deletions. However, detection of genomic rearrangements, such as large deletions and duplications, requires special technologies. Microarray analysis has been successfully used to detect large rearrangements (LRs) in...
Long-term vertical transmission of intracellular bacteria causes massive genomic erosion and results in extremely small genomes, particularly in ancient symbionts. Genome reduction is typically preceded by the accumulation of pseudogenes and proliferation of mobile genetic elements, which are responsible for chromosome rearrangements during the initial stage of endosymbiosis. We compared the ge...
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