Minimal Model for Genome Evolution and Growth

Li-Ching Hsieh, Liaofu Luo, Fengmin Ji, and H. C. Lee
Phys. Rev. Lett. 90, 018101 – Published 3 January 2003

Abstract

Textual analysis of typical microbial genomes reveals that they have the statistical characteristics of a DNA sequence of a much shorter length. This peculiar property supports an evolutionary model in which a genome evolves by random mutation but primarily grows by random segmental duplication. That genomes grew mostly by duplication is consistent with the observation that repeat sequences in all genomes are widespread and intragenomic and intergenomic homologous genes are preponderant across all life forms.

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  • Received 8 June 2002

DOI:https://doi.org/10.1103/PhysRevLett.90.018101

©2003 American Physical Society

Authors & Affiliations

Li-Ching Hsieh1, Liaofu Luo2, Fengmin Ji3, and H. C. Lee1,4,5

  • 1Department of Physics, National Central University, Chungli, Taiwan 320
  • 2Department of Physics, University of Inner Mongolia, Hohhot 010021, China
  • 3Department of Physics, Northern JiaoTong University, Beijing 100044, China
  • 4Department of Life Science, National Central University, Chungli, Taiwan 320
  • 5Centre de Recherches Mathématiques, Université de Montréal, Montréal, Quebec, Canada

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Vol. 90, Iss. 1 — 10 January 2003

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