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Phylogenetic analysis of DNA sequences based on the generalized pseudo-amino acid composition
Authors:Huang Yujuan  Yang Lianping  Wang Tianming
Affiliation:a School of Mathematical Sciences, Dalian University of Technology, Dalian, Liaoning 116024, PR China
b Department of Mathematics & Physics, Shandong Jiaotong University, Jinan, Shandong 250023, PR China
c College of Sciences, Northeastern University, Shenyang, Liaoning 110004, PR China
Abstract:The main work of this paper is to propose a new theory and method, which is based on the idea of the pseudo-amino acid composition, for phylogenetic analysis of DNA primary sequences. In our method, we revise the part of the occurrence frequency of 20 amino acids in the method of the pseudo-amino acid composition by replacing the frequency of 16 dinucleotides. And we select eight LZ complexity factors of eight (0,1) sequences of a DNA primary sequence as PseAA components. Finally, we characterize a DNA sequence with a 24-dimensional vector. We reconstruct the phylogenetic trees of two datasets. The results show that our method is efficient and significant.
Keywords:DNA   Dinucleotide   LZ complexity   Phylogenetic tree
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