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Table 1 DNA content in the gonosomal chromatin bodies (GCB) of placental trophoblast cells at the different ploidy levels at the 10th day pc (arbitrary units).

From: Quantitative investigation of reproduction of gonosomal condensed chromatin during trophoblast cell polyploidization and endoreduplication in the east-european field vole Microtus rossiaemeridionalis

Cell population Ploidy DNA content in a GCB in the nuclei with single GCB Total DNA content in GCBs in the nuclei with two or more GCBs
   No. of embryo No. of embryo
   1–3 1–4 1–3 1–4
Trophoblast cells of the junctional zone of placenta 2 c 14.9 ± 1.06 14.3 ± 0.4 24.5 ± 2.6 -
  4 c 32.0 ± 2.0 25.7 ± 0.9 44.3 ± 3.8 33.6 ± 2.0
  8 c 66.2 ± 4.5 53.8 ± 2.0 83.1 ± 11.3 84.2 ± 2.4
  16 c 124.9 ± 28.9 184.6 ± 6.1 182.5 ± 16.2 151.6 ± 6.7
Secondary giant trophoblast cells 32 c 291.8 ± 46.9 218.9 ± 4.7 413.0 ± 45.3 386.1 ± 26.5
  64 c 525.7 ± 38.1 426.9 ± 14.6 640.1 ± 58.1 788.3 ± 35.4
  128 c 869.3 ± 98.9 182.7 ± 30.5 1120.5 ± 98.9 1296.3 ± 97.1