BCL6B and Abnormal sperm morphology: DMRTB1 was a down-regulated common gene among MArrest, oligospermia and Ikbkap KO, GPR137B was common among teratospermia, Bcl6b and Pou3f1 KD, and LMNB2 was common among Bcl6b, Etv5 and Pou3f1 KD infertile mice (Table 1 and Table 2).