[Objective] The study aimed to extract the statistical features of complete tobacco necrosis virus genome and conduct clustering analysis.[Method] On the base sequence of complete tobacco necrosis virus genome,by usin...[Objective] The study aimed to extract the statistical features of complete tobacco necrosis virus genome and conduct clustering analysis.[Method] On the base sequence of complete tobacco necrosis virus genome,by using three base groups which was composed of each base and its subsequent two bases,a new sequence S was arranged;the probability of all 64 kinds of three base groups occurred on S was calculated,a 64-dimensional vector L was obtained;L-vector of each genome was compared,8 three base groups were obtained,their probabilities have significant differences.[Result] The emergence probability of 8 three base groups （CGT;CAA;TAC;TAA;AGG;ATG;ATA;AAG） has significant association with genetic variation of tobacco necrosis virus genome;according to genetic variation result,4 different sources tobacco necrosis virus complete genome formed 2 major categories.[Conclusion] The study will provide theoretical basis for the control of tobacco necrosis virus.展开更多
基金Supported by"Eleventh Five-year" Education Science Development Plan of Hubei Province (2006B131)~~
文摘[Objective] The study aimed to extract the statistical features of complete tobacco necrosis virus genome and conduct clustering analysis.[Method] On the base sequence of complete tobacco necrosis virus genome,by using three base groups which was composed of each base and its subsequent two bases,a new sequence S was arranged;the probability of all 64 kinds of three base groups occurred on S was calculated,a 64-dimensional vector L was obtained;L-vector of each genome was compared,8 three base groups were obtained,their probabilities have significant differences.[Result] The emergence probability of 8 three base groups （CGT;CAA;TAC;TAA;AGG;ATG;ATA;AAG） has significant association with genetic variation of tobacco necrosis virus genome;according to genetic variation result,4 different sources tobacco necrosis virus complete genome formed 2 major categories.[Conclusion] The study will provide theoretical basis for the control of tobacco necrosis virus.
