title: Directed graphs of DNA sequences and their numerical characterization.
abstract: In this paper we (1) introduce a directed graphical representation of DNA primary sequences; (2) describe a scheme that transforms the directed graph of a DNA sequence into an upper triangular matrix; (3) investigate whether or not the existing matrix-based invariants of DNA sequences are compatible for the upper triangular matrix representation. The utility of our method is illustrated by an examination of the similarity between human and other seven species.
authors.affiliation: Department of Applied Mathematics, Dalian University of Technology, Dalian 116024, PR China. lchlmb@yahoo.com.cn
authors.forename: Chun
authors.initials: C
authors.lastname: Li
authors.forename: Nannan
authors.initials: N
authors.lastname: Tang
authors.forename: Jun
authors.initials: J
authors.lastname: Wang
mesh_terms: D001483:Base Sequence; D003196:Computer Graphics; D004247:DNA / Q000235:genetics*; D006801:Humans; D008958:Models, Molecular; D008969:Molecular Sequence Data; D017422:Sequence Analysis, DNA / Q000379:methods; D013045:Species Specificity
chemical_list: D004247:DNA