Selective pressure on synonymous codon usage in mammalian protein-encoding genes ANALYSIS OF CODON USAGE IN MAIZE Codon Usage Bias in Vitis vinifera Analysis of Codon Bias of Auxin Receptor Gene TIR1 in Dimocarpus longan Analysis on codon bias of farnesyl pyrophosphate synthase gene in Astragalus membranaceus Analysis of Codon Bias of Auxin Receptor Gene TIR1 in Dimocarpus longan CHARACTERIZATION OF CODON USAGE OF waxy GENES IN SEVERAL PLANTS Analysis on codon usage of chloroplast genome of Eleutherococcus senticosus