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Table 4 Parental origin of monosomy and trisomy at day 3 embryos according to haplotype analysis, in PGT-M cycles

From: New insights regarding origin of monosomy occurrence in early developing embryos as demonstrated in preimplantation genetic testing

Chromosome tested No. of embryos with aberrations Monosomy Trisomy Maternal monosomy Paternal monosomy Maternal trisomy Paternal trisomy
1 29 (9.1%) 26 (89.7%) 3 (10.3%) 13 13 3 0
2 10 (8.4%) 9 (90.0%) 1 (10.0%) 2 7 0 1
6 4 (1.9%) 4 (100%) 0 1 3 0 0
7 51 (7.0%) 44 (86.3%) 7 (13.7%) 24 20 7 0
16 17 (11.2%) 15 (88.2%) 2 (21.2%) 8 7 2 0
17 6 (4.5%) 6 (100%) 0 5 1 0 0
19 19 (5.7%) 14 (73.7%) 5 (26.3%) 6 8 2 3
20 6 (2.3%) 5 (83.3%) 1 (16.7%) 3 2 1 0
X 9 (10.7%) 9 (100%) 0 2 7 0 0
Total chromosomes (9) 151 (7.2%) 132 (87.5%) 19 (12.5%) 64/132 (48.5%) 68/132 (51.5%) 15/19 (78.9%) 4/19 (21.1%)