Unfortunately, differentiation capacity of the parthenogenetic embryonic stem cells was rather lower than fertilized embryos derived ES cells, which might be the result of the absence of male genome.

• 在缺少雄性配子基因组的情况直接激活成熟卵子能够形成孤雌囊胚，从这个孤雌囊胚中可以分离得到孤雌胚胎干细胞。