| Low dimensional chaos in the AT and GC skew profiles of DNA sequences |
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| 作者姓名： | 周茜 陈增强 |
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| 作者单位： | Department of Automation, Nankai University, Tianjin 300071, China;Department of Automation, Nankai University, Tianjin 300071, China |
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| 基金项目： | Project supported in part by the National Natural Science Foundation of China (Grant No. 60774088), the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20090031110029), and the Foundation of the Application Base |
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| 摘 要： | This paper investigates the existence of low-dimensional deterministic chaos in the AT and GC skew profiles of DNA sequences. It has taken DNA sequences from eight organisms as samples. The skew profiles are analysed using continuous wavelet transform and then nonlinear time series methods. The invariant measures of correlation dimension and the largest Lyapunov exponent are calculated. It is demonstrated that the AT and GC skew profiles of these DNA sequences all exhibit low dimensional chaotic behaviour. It suggests that chaotic properties may be ubiquitous in the DNA sequences of all organisms.
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| 关 键 词： | chaos phase space reconstruction DNA sequences AT and GC skew profiles |
| 收稿时间： | 2010-01-27 |
Low dimensional chaos in the AT and GC skew profiles of DNA sequences |
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| Zhou Qian and Chen Zeng-Qiang.Low dimensional chaos in the AT and GC skew profiles of DNA sequences[J].Chinese Physics B,2010,19(9):90508-090508. |
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| Authors: | Zhou Qian and Chen Zeng-Qiang |
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| Affiliation: | Department of Automation, Nankai University, Tianjin 300071, China |
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| Abstract: | This paper investigates the existence of low-dimensional deterministic chaos in the AT and GC skew profiles of DNA sequences. It has taken DNA sequences from eight organisms as samples. The skew profiles are analysed using continuous wavelet transform and then nonlinear time series methods. The invariant measures of correlation dimension and the largest Lyapunov exponent are calculated. It is demonstrated that the AT and GC skew profiles of these DNA sequences all exhibit low dimensional chaotic behaviour. It suggests that chaotic properties may be ubiquitous in the DNA sequences of all organisms. |
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| Keywords: | chaos phase space reconstruction DNA sequences AT and GC skew profiles |
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