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| 基因组"k字"频数普适关系的研究 | |
| 引用本文： | 李培芳,贾晓超,李宏,罗辽复. 基因组"k字"频数普适关系的研究[J]. 内蒙古大学学报(自然科学版), 2006, 37(2): 153-159 |
| 作者姓名： | 李培芳 贾晓超 李宏 罗辽复 |
| 作者单位： | 内蒙古大学理工学院物理系,呼和浩特,010021 |
| 摘 要： | 寻找物种基因组中k-m er频数分布的特征,对几个典型物种的基因组序列进行了统计分析.区分“字”域和“频数”域,运用两种求信息熵的方法Shannon信息熵和F isher信息熵,定义了五种k-m er频数的泛函.发现对于每一物种,由Shannon信息熵定义的四种泛函与k之间都具有很好的线性关系,并且这种线性关系在所研究的物种间具有普适性. |
| 关 键 词： | 基因组 频数 信息熵 |
| 文章编号： | 1000-1638(2006)02-0153-07 |
| 收稿时间： | 2005-01-05 |
| 修稿时间： | 2005-06-30 |
Research on the Universality of k-mer Frequency Distribution in Genomes |
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| LI Pei-fang,JIA Xiao-chao,LI Hong,LUO Liao-fu. Research on the Universality of k-mer Frequency Distribution in Genomes[J]. Acta Scientiarum Naturalium Universitatis Neimongol, 2006, 37(2): 153-159 | |
| Authors: | LI Pei-fang JIA Xiao-chao LI Hong LUO Liao-fu |
| Affiliation: | Department of Physics, College of Sciences and Technology, Inner Mongolia University, Hohhot 010021,China |
| Abstract: | To find the character of the distribution of k-mer frequency in genome,several genomes of typical species are statistically studied.Considering the difference between word domain and frequency domain,using Shannon information and Fisher information respectively,five types of functional of k-mer frequency are defined.The results showed good linear relation existing in each species for four functionals deduced from Shannon information.Moreover,these linear relations are basically universal among the studied species. |
| Keywords: | k-mer |
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