摘要
结合DNA游走方法和小波分析研究了不同物种的线粒体基因组序列的自相似分形结构,提取了线粒体基因组序列的ATW alk,AG W alk和AC W alk分维数指标。研究结果表明3种游走序列的分维数均大于1,并且在同类物种中的AG W alk的分维数间有一定的关系。证明线粒体基因组序列存在自相似分形结构,这种结构受到ATGC碱基在基因组中的排列结构影响。
The similar fractal structures of mitochondrial genome sequence from different species were studied, combining DNA walk and wavelet analysis. The fractal dimensions of AT Walk, AG Walk and AC Walk of mtGenomes were obtained. The results showed that the fractal dimensions of the 3 Walks were greater than 1 and were similar to each other within the same species. The mtGenome structures possessed similar fractal properties, which were affected by the array of ATGC sequence.
出处
《西南农业大学学报（自然科学版）》
CSCD
北大核心
2006年第5期873-876,共4页
Journal of Southwest Agricultural University
