Popdc2 and Popdc3 are only found in higher vertebrates and share 50% of their DNA sequence, whereas Bves is only 25% homologous with the evolutionary younger Popdc family members.
Popdc2和Popdc3只在高等脊椎动物中发现，并且共享50%的DNA序列，而Bves与其他在进化上更年轻的基因家族成员只有25%的同源性。