Segmental duplications and evolutionary plasticity at tumor chromosome break-prone regions
نویسندگان
چکیده
منابع مشابه
Segmental duplications flank the multiple sclerosis locus on chromosome 17q.
Large chromosomal rearrangements, duplications, and inversions are relatively common in mammalian genomes. Here we report interesting features of DNA strands flanking a Multiple Sclerosis (MS) susceptibility locus on Chromosome 17q24. During the positional cloning process of this 3-Mb locus, several markers showed a radiation hybrid clone retention rate above the average (1.8-fold), suggestive ...
متن کاملSegmental duplications mediate novel, clinically relevant chromosome rearrangements.
Copy number studies have led to an explosion in the discovery of new segmental duplication-mediated deletions and duplications. We have analyzed copy number changes in 2419 patients referred for clinical array comparative genomic hybridization studies. Twenty-three percent of the abnormal copy number changes we found are immediately flanked by segmental duplications > or =10 kb in size and > or...
متن کاملComparing genomes with rearrangements and segmental duplications
MOTIVATION Large-scale evolutionary events such as genomic rearrange.ments and segmental duplications form an important part of the evolution of genomes and are widely studied from both biological and computational perspectives. A basic computational problem is to infer these events in the evolutionary history for given modern genomes, a task for which many algorithms have been proposed under v...
متن کاملRelationship between segmental duplications and repeat sequences in human chromosome 7.
Various types of repeat sequences are abundant in genomic sequences, and they are associated with the biological phenomena at distinct levels. In particular, comparative analyses of whole-genome-sized sequence data have revealed that repeat sequences cause segmental duplications, which are a type of chromosomal structural arrangement. In this study, we analyzed the relationships between segment...
متن کاملOrigins and Impacts of Primate Segmental Duplications
Duplicated sequences are substrates for the emergence of new genes and are an important source of genetic instability associated with rare and common disease. Analyses of primate genomes have shown an increase in the proportion of interspersed segmental duplications within the genomes of humans and great apes. This is in contrast to other mammalian genomes that appear to have their recently dup...
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ژورنال
عنوان ژورنال: Genome Research
سال: 2008
ISSN: 1088-9051
DOI: 10.1101/gr.7010208