Rates of synonymous substitution in plant nuclear genes

  title={Rates of synonymous substitution in plant nuclear genes},
  author={Kenneth H. Wolfe and Paul M. Sharp and Wen-Hsiung Li},
  journal={Journal of Molecular Evolution},
The rate of synonymous nucleotide substitution in nuclear genes of higher plants has been estimated. The rate varies among genes by a factor of up to two, in a manner that is not immediately explicable in terms of base composition or codon usage bias. The average rate, in both monocots and dicots, is about four times higher than that in chloroplast genes. This leads to an estimated absolute silent substitution rate of 6 × 10−9 substitutions per site per year that falls within the range of… CONTINUE READING