Exploring Homologous tRNA Sequence Data: Positional Mutation Rates and Genetic Distance
The literature provides different proposals for mathematical or biological models for the evolutionary interpretation of sequence data. For example Felsenstein (1983) or Weir (1985, 1988a) reviewed the state of art. Many papers propose models with parameters for different kinds of nucleotide substitutions (e.g. Kimura, 1980; Barry and Hartigan, 1987; Cavender and Felsenstein, 1987; Rempe, 1988). Most models need some assumption of independent and identical distributions for each site. Moreover, they often propose to estimate a lot of parameters together with the unknown phylogeny. Some work was done concerning the sequence itself; e.g. Avery (1987) analysed aspects of intron data and Haselman, Chappelear and Fox (1988) discussed secondary and tertiary interactions of tRNA.
KeywordsGenetic Distance Monte Carlo Study Nucleic Acid Research tRNA Sequence Maximum Likelihood Estima
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