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The Joint Multi-fractal Analysis of the Base Sequence of Chromosomes |
Chen Shuang-ping①②; Han Kai②③; Ma Meng②④; Wang Xu-fa② |
①Department of Electronic Engineering and Information Science, USTC, Hefei 230027, China;
②Department of Computer Science and Technology, USTC, Hefei 230027, China;
③School of Computer Science, Zhongyuan University of Technology, Zhengzhou 450007, China;
④School of Computer Science and Technology, Anhui University, Hefei 230032, China |
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Abstract The multi-fractal spectrum of the DNA sequence of a chromosome reflects its probability distribution, and the joint multi-fractal spectrum of two DNA sequences can be used to discriminate their distributions. By employing joint multi-fractal spectrum to analyze the DNA sequences of chromosomes and randomly generated sequences according to predefined distributions, it has been shown that, different chromosomes of the same specie can be viewed as being generated from the same information source, and chromosomes of different species can not be thought so, but all are different from randomly generated sequences. The joint multi-fractal can also be used in other fields for signal modeling and analyzing.
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Received: 28 July 2006
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