Low dimensional chaos in the AT and GC skew profiles of DNA sequences |
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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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