The developmental process by which male germ line stem cells self renew or give rise to successive cell types resulting in the development of a spermatozoa. [ http://www.ncbi.nlm.nih.gov/pubmed/30990821 http://www.ncbi.nlm.nih.gov/pubmed/28073824 https://www.worldcat.org/search?q=bn%3A9780878933846 ]