sexual reproduction____________________________
multicellular organismal reproductive process__|
                                               gamete generation
                                                |__male gamete generation  694 rec.
                                                    |__generative cell mitosis 1 rec.
                                                    |__male meiotic nuclear division 81 rec.
                                                    |   |__male meiosis chromosome segregation(+) 20 rec.
                                                    |   |__male meiosis cytokinesis 28 rec.
                                                    |   |__male meiosis I(+) 11 rec.
                                                    |   |__male meiosis II(+)
                                                    |   |__spindle assembly involved in male meiosis(+) 4 rec.
                                                    |__pollen sperm cell differentiation
                                                    |__spermatogenesis 649 rec.
                                                        |__male germ-line cyst encapsulation 9 rec.
                                                        |__male germ-line cyst formation 2 rec.
                                                        |__male germ-line stem cell asymmetric division(+) 8 rec.
                                                        |__male germline ring canal formation 3 rec.
                                                        |__primary spermatocyte growth 2 rec.
                                                        |__sperm karyosome formation
                                                        |__spermatid cytoplasm removal during spermiation of flagellated sperm
                                                        |__spermatid differentiation(+) 150 rec.
                                                        |__spermatocyte division 9 rec.
                                                        |__spermatogonial cell division 4 rec.
                                                        |__testicular fusome organization 1 rec.