Inverse Symmetry in Complete Genomes and Whole-Genome Inverse Duplication
نویسندگان
چکیده
منابع مشابه
Inverse Symmetry in Complete Genomes and Whole-Genome Inverse Duplication
The cause of symmetry is usually subtle, and its study often leads to a deeper understanding of the bearer of the symmetry. To gain insight into the dynamics driving the growth and evolution of genomes, we conducted a comprehensive study of textual symmetries in 786 complete chromosomes. We focused on symmetry based on our belief that, in spite of their extreme diversity, genomes must share com...
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The prevalence of three symmetries, reverse, complement, and inverse (or reverse-complement), in about 800 complete genomic sequences extant in GenBank is studied. Each symmetry is measured by an index, χ, where χ=1 indicates lack of symmetry and χ=0, perfect symmetry. All random sequences have χ∼1. For reverse and complement symmetries it is found that χ∼1 in all complete sequences. In sharp c...
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The segmental duplication has long been known to be a major mechanism for genome growth and evolution. Beyond that, the large-scale genomic duplication is important in the evolution of species. Recent studies have spotted occurrence of whole-genome duplication provided great insight into many aspects of biology. In this work we investigate possible association of inverse symmetry with whole-gen...
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ژورنال
عنوان ژورنال: PLoS ONE
سال: 2009
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0007553