Distributions of top 15 GO terms for the LMG and the HMG classes.

P values were calculated by using the chi-square statistic. Only top 15 terms significant at the 0.05 level are presented. Parenthesized markings stand for the three major sub-ontologies comprising GO: CC for “cellular component,” BP for “biological process,” and MF for “molecular function”.P值通过卡方（chi-square）统计量计算得到。仅展示在0.05显著性水平下具有统计学意义的前15个条目。括号标注代表构成基因本体（Gene Ontology，GO）的三大主要子本体：CC对应细胞组分（cellular component）、BP对应生物过程（biological process）、MF对应分子功能（molecular function）。