Therefore, the parthenogenetic morulas without zona pellucida are more capable of attaching onto the feeder layers of PMEFs than the parthenogenetic blastocysts with intact zona pellucida.

• 说明去透明带孤雌桑葚胚比留透明带孤雌囊胚更利于在饲养层上贴壁生长，为建立孤雌生殖的胚胎干细胞系提供了基础。