Quagio-Grassiotto I, de Lello E
Department of Morphology, UNESP, São Paulo, Brazil.
Cytobios. 1996;85(341):73-80.
During the meiotic division of Dermatobia hominis spermatogenesis, the centrioles duplicate only in prophase I, giving rise to short cilia which are exposed on the cellular surface. In metaphase I they are internalized and distributed to the daughter cells. Consequently, the secondary spermatocytes have two centrioles which repeat the cycle of cilia externalization followed by internalization. The spermatids receive only one centriole, which changes into a basal body and originates a flagellum. This centriole behaviour seems to be a general feature in insect male germ cell meiosis.
在人皮蝇精子发生的减数分裂过程中，中心粒仅在减数第一次分裂前期复制，产生短纤毛并暴露于细胞表面。在减数第一次分裂中期，它们内化并分配到子细胞中。因此，次级精母细胞有两个中心粒，重复纤毛外化然后内化的循环。精子细胞仅接收一个中心粒，该中心粒转变为基体并产生鞭毛。这种中心粒行为似乎是昆虫雄性生殖细胞减数分裂的一个普遍特征。
