Nucleosome location method based on morlet wavelet analysis scalograms investigation

摘要

In this paper, We propose a method for the nucleosome's location based on the analysis of scalograms generated by morlet wavelet analysis. We compare after these location in genes by focusing on periodicity 3 and 10. For this purpose, we built a nucleosome database. The methodology adopted in building database consists in four steps. First, we obtain the DNA signal with Frequency Chaos Game Signal at order 2 (FCGS2). After applying Wavelet Transform (WT), we generate scalograms images where we have all periodicities. Based on the periodicity 10, new database (scalograms images) of the nucleosome structure is established. Then, we highlight the different patterns associated with these regions and their durations. Finally, we compare the nucleosome positions with gene's region.