FIGURE 1.

Oocyte competence in IVF could be defined as the ability of an oocyte to achieve the mature oocyte stage, fertilization, embryo stage, and ultimately pregnancy. Expression of the COC-derived genes discussed in this study have exhibited significant predictive values toward the respective IVF stages. ^a,b,c,d refers to the occyte maturation process that the gene regulate: ^aNuclear maturation, ^bApoptosis, ^cExtracellular matrix remodeling, ^dSteroid metabolism.