Benavente R, Wettstein R, Papa M
J Cell Sci. 1982 Dec;58:411-22. doi: 10.1242/jcs.58.1.411.
An ultrastructural study was performed on the sex chromosomes (male X1X2X3O) during the spermatogenesis of Tegenaria domestica (Arachnida, Agelenidae). This study was carried out using random and serially cut sections. During pachytene and diplotene the three X chromosomes are longitudinally paired. Each of these consists of a central core of condensed chromatin, surrounded by a field of dense chromatin projections through which the chromosomes are in contact with one another. These projections may be responsible for the recognition and pairing of the sex chromosomes and in some way participate in their non-disjunction during anaphase I. A study of the structure and behaviour of the sex chromosomes during spermatogenesis is also presented. The available information on non-synaptonemal complex-mediated chromosome pairing and a systematization of sex chromosome structure in spiders are discussed.
对家隅蛛（蛛形纲，漏斗蛛科）精子发生过程中的性染色体（雄性为X1X2X3O）进行了超微结构研究。本研究使用随机和连续切片进行。在粗线期和双线期，三条X染色体纵向配对。每条染色体都由一个浓缩染色质的中央核心组成，周围是密集的染色质突起区域，染色体通过这些突起相互接触。这些突起可能负责性染色体的识别和配对，并以某种方式参与它们在减数第一次分裂后期的不分离。还介绍了精子发生过程中性染色体的结构和行为研究。讨论了关于非联会复合体介导的染色体配对的现有信息以及蜘蛛中性染色体结构的系统化。
