Serial segmental duplications during primate evolution result in complex human genome architecture

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Serial segmental duplications during primate evolution result in complex human genome architecture.

The human genome is particularly rich in low-copy repeats (LCRs) or segmental duplications (5%-10%), and this characteristic likely distinguishes us from lower mammals such as rodents. How and why the complex human genome architecture consisting of multiple LCRs has evolved remains an open question. Using molecular and computational analyses of human and primate genomic regions, we analyzed the...

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Recent segmental duplications in the human genome.

Primate-specific segmental duplications are considered important in human disease and evolution. The inability to distinguish between allelic and duplication sequence overlap has hampered their characterization as well as assembly and annotation of our genome. We developed a method whereby each public sequence is analyzed at the clone level for overrepresentation within a whole-genome shotgun s...

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Origins 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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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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Transposable Element- driven Duplications during Hominoid Genome Evolution

p0001 Akin to any large texts in a natural language, hominoid genomes appear as palimpsests ofmorphemes, lexemes and other lexical modules, each with its own structure, distribution and fluctuating copy numbers (Zhou and Mishra, 2004; Thomas et al., 2004). Duplication appears to be one of the main mechanisms in shaping and reshaping this genomic architecture. Duplication occurs at multiple scal...

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ژورنال

عنوان ژورنال: Genome Research

سال: 2004

ISSN: 1088-9051

DOI: 10.1101/gr.2746604