The genomic tree of living organisms based on a fractal model
Publication in refereed journal


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摘要Accumulation of complete genome sequences of living organisms creates new possibilities to discuss the phylogenetic relationships at the genomic level. In the present Letter, a fractal model is proposed to simulate a kind of visual representation of complete genome. The estimated parameters in the fractal model is used to define the genetic distance between two organisms. Because we take into account all genome content including both coding and non-coding regions, the phylogenetic tree from such an analysis leads to alternate classification of genomes that is called a genomic tree. This method of phylogenetic analysis does not require sequence alignment of homologous genes and relies instead on our fractal analysis, so it can avoid artefacts associated with sequence alignment. The similarity in related organisms based on the fractal model of the complete genome is global. Our result from such an analysis of more than 50 genomes indicates that lateral gene transfer must have been very common in the early history of life and thus constitutes a major source of variations in a substantial proportion of prokaryotic genome. (C) 2003 Elsevier B.V. All rights reserved.
著者Yu ZG, Anh V, Lau KS, Chu KH
期刊名稱Physics Letters A
出版年份2003
月份10
日期20
卷號317
期次3-4
出版社ELSEVIER SCIENCE BV
頁次293 - 302
國際標準期刊號0375-9601
電子國際標準期刊號1873-2429
語言英式英語
關鍵詞complete genome; genomic tree; IFS (RIFS) model; measure representation
Web of Science 學科類別Physics; Physics, Multidisciplinary; PHYSICS, MULTIDISCIPLINARY

上次更新時間 2020-29-11 於 01:14