Figure 2

Distinct patterns and dynamics of gene expression during bovine in vivo pre-implantation development. (A). Representative clusters of expression dynamics during early development. Genes were clustered to be increased (a), decreased (b), increased first and then decreased (c), and maintained relatively constant levels of expression (d). (B). Identification of stage-specific/enriched genes by cluster analysis. Groups of genes were found to be only expressed in oocytes and blastocysts, enriched in oocytes to 4-cell embryos, and 8-cell to blastocysts. The color spectrum, ranging from red to white, represents high to low levels of gene expression.