Table 3 Comparison of H3K9 dimethylation patterns in vitro fertilization (IVF), homotype SCNT, and heterotype SCNT bovine blastocysts.
From: Donor-host mitochondrial compatibility improves efficiency of bovine somatic cell nuclear transfer
Embryo types (Oocytes-Donor) | No. | H3K9 methylation status | Â |
|---|---|---|---|
| Â | Â | Normal H3K9 methylation patterns: hypomethylated trophectoderm and hypermethylated ICM (%) | Aberrant H3K9 methylation patterns: little difference between ICM and trophectoderm (%) |
IVF blastocyst | 35 | 26 (74.3) | 9 (25.7)a |
A-A | 11 | 7 (63.6%) | 4 (36.4%)b |
B-B | 17 | 6 (35.3%) | 11 (64.7%)c |
A-B | 12 | 1 (8.3%) | 11 (91.7%)d |
B-A | 13 | 1 (7.7%) | 12 (92.3%)d |
Homotype SCNT | 28 | 13 (46.4) | 15 (53.6) e |
Heterotype SCNT | 25 | 2 (8.0) | 23 (92.0) d |