The numbers of additional steps (<i>S</i>) required to force molecules into monophyly based on amino acid chronology constraints during MP analyses of combined tRNA structure and sequence data.
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The length of the most parsimonious trees derived from the combined data set was 10,083 steps. Each constrained group is given in parentheses and groups of tRNA isoacceptors were labeled with IUPAC 3-letter amino acid nomenclature.
创建时间：
2008-07-30
