SRP343243 PRJNA774774 GSE186602 RNA-seq analysis of the developmental mechanisms of Mongolian sheep embryos in different periods Analyze the developmental mechanism of Mongolian sheep embryos in different periods. Overall design: Hulunbeier sheep was the experimental group, and Wuzhumuqin sheep was the control group. In each group (n = 3), 16-day and 25-day embryos of each sheep were taken, digested into single cells with enzymes, and performed RNA-seq. GSE186602