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Table 3 Number of partially asynapsed trivalents and the type of ectopic asociations in 2n = 32 heterocygote spermatocytes

From: Robertsonian chromosomes and the nuclear architecture of mouse meiotic prophase spermatocytes

  Asynapsed trivalents 0 1 2 3 4 5 6 7 8 Total %
Ectopic associations none 35 1 3 4 3 2 0 0 0 47 33,6
XY/triv 2 13 8 6 8 3 0 0 0 38 27,1
triv/triv 0 0 5 7 4 4 0 0 0 22 15,7
both 0 0 0 3 9 12 3 2 3 33 23,6
Total nuclei 37 14 16 20 24 21 3 2 3 140 100
  1. 140 nuclear microspreadings from 2n = 32 pachytene spermatocytes were examined.The single axes and central element of the SC were identified by immunochemistry, using, respectively, anti-SYCP3 and anti-SYCP1 antibodies (as in Figure 5c & d).