Solari A J, Vilar O
Chromosoma. 1978 May 16;66(4):331-40. doi: 10.1007/BF00328533.
Multiple complexes develop during metaphase I in normal human spermatocytes. Usually they form two separate bodies about 1 micron in diameter, composed of tripartite units and a denser matrix. The tripartite units are structurally identical to the components of the central space of synaptonemal complexes (SCs). Formation of the multiple complexes occurs by shedding of SC fragments from a few chromosomal regions at prometaphase I. The combined total length of central elements in each multiple complex is 1 to 3 micron. Multiple complexes remain as cytoplasmic, perinuclear bodies during telophase I and interphase of spermatocytes II, but they were not observed during or after the second meiotic division. Although multiple complexes are initially located in the spindle, they do not show microtubular attachments and seem to be passively moved towards the periphery.
在正常人类精母细胞的减数第一次分裂中期会形成多个复合体。通常它们会形成两个直径约1微米的独立小体，由三联体单元和更致密的基质组成。三联体单元在结构上与联会复合体（SCs）中央空间的成分相同。多个复合体的形成是由于在减数第一次分裂前期，SC片段从一些染色体区域脱落。每个多个复合体中中央元件的总长度为1至3微米。在减数第一次分裂末期和精母细胞II的间期，多个复合体作为细胞质、核周小体保留，但在第二次减数分裂期间或之后未观察到它们。尽管多个复合体最初位于纺锤体中，但它们并未显示出微管附着，似乎是被动地向周边移动。
