Analysis of segmental duplications via duplication distance

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چکیده

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Analysis of segmental duplications via duplication distance

MOTIVATION Segmental duplications are common in mammalian genomes, but their evolutionary origins remain mysterious. A major difficulty in analyzing segmental duplications is that many duplications are complex mosaics of fragments of numerous other segmental duplications. RESULTS We introduce a novel measure called duplication distance that describes the minimum number of duplications necessa...

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Segmental duplications are abundant in the human genome, but their evolutionary history is not well-understood. The mystery surrounding them is due in part to their complex organization; many segmental duplications are mosaic patterns of smaller repeated segments, or duplicons. A two-step model of duplication has been proposed to explain these mosaic patterns. In this model, duplicons are copie...

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Analysis of segmental duplications and genome assembly in the mouse.

Limited comparative studies suggest that the human genome is particularly enriched for recent segmental duplications. The extent of segmental duplications in other mammalian genomes is unknown and confounded by methodological differences in genome assembly. Here, we present a detailed analysis of recent duplication content within the mouse genome using a whole-genome assembly comparison method ...

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Phylogenomic analysis reveals ancient segmental duplications in the human genome.

Evolution of organismal complexity and origin of novelties during vertebrate history has been widely explored in context of both regulation of gene expression and gene duplication events. Ohno (1970) for the first time put forward the idea of two rounds whole genome duplication events as the most plausible explanation for evolutionarizing the vertebrate lineage (2R hypothesis). To test the vali...

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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: Bioinformatics

سال: 2008

ISSN: 1367-4803,1460-2059

DOI: 10.1093/bioinformatics/btn292