genetics - Need of X or Y chromosome protein after meiosis

After meiosis each spermatid get either the X chromosome or the Y chromosome. I know that the 4 spermatids formed from 1 spermatogonia are connected by cytoplasm and so the proteins made by X or Y chromosome can be shared by all the 4 cells.

I want to know what proteins made by X or Y chromosome are exclusive to the X or Y chromosome and are needed to convert spermatids to sperms.