Major characteristic of DGE libraries and tag mapping to the UniGene transcript database.

All Mapping represents the number of all tags mapped to the UniGene virtual tag database, clear-cut Mapping represents the number of clear-cut tags mapped to the UniGene virtual tag database, clear-cut tags indicate the tags matched only to one gene. Examination confirmed that the quality of the data were up to specification suggesting that DGE data are significant.全映射数（All Mapping）指所有标签映射至UniGene虚拟标签数据库的总数量；明确映射数（clear-cut Mapping）指映射至该数据库的明确标签的总数量。明确标签指仅与单个基因完成匹配的标签。经质量检验证实，本次数据质量符合规范，表明数字基因表达谱（Digital Gene Expression Profiling，DGE）数据具备统计学显著性。