The testis determinant factor Sry and the spermatogonial proliferation factor Eif2s3y genes of Y-chromosome play role in sex determination and performing first stage of spermatogenesis respectively.
Paper:
http://www.sciencemag.org/content/early/2013/11/20/science.1242544
Comments
This is a kind of interesting that a mice with just two 'male' genes father babies. I found this news today on nature "Assisted-reproduction technique helps mice with two genes from Y chromosome make healthy offspring"
http://www.nature.com/news/mice-with-just-two-male-genes-father-babies-1.14219?WT.mc_id=FBK_NatureNews