Scatter plot of gene expression levels.
A) NT fast and NT slow largely overlap (5 genes differently expressed, red/blue dots), B) ICSI fast and ICSI slow also largely overlap (34 genes differently expressed, red/blue dots), C) NT and ICSI show great differences in gene expression (218 genes differently expressed, red/blue dots). D) Fold-change of gene expression in ICSI fast versus ICSI slow and NT fast versus NT slow. Red dots, oocyte/1-cell-specific (maternal) transcripts; blue dots, 4-cell/blastocyst-specific transcripts (embryonic); black dots, transcripts not different between maternal and embryonic stages; grey dots, transcripts not represented in downloaded data sets. Embryonic transcripts are over-represented in fast ICSI embryos.