Fig. 1

Global transcriptome patterns of largest preovulatory follicles (F1s) and postovulatory follicles (POF1s). A Record of egg production in continuous laying (CL) and intermittent laying (IL) chicken. B Schematic representation of the research workflow. F1 of CL hens (CL_F1), POF1 of CL hens (CL_POF1), F1 of IL hens (IL_F1), and POF1 of IL hens (IL_POF1) were collected for RNA extraction and subjected to RNA-seq. C Principal component analysis (PCA) of RNA-seq data for all samples. PCA plots of the expression patterns of highly expressed genes in CL_F1 and CL_POF1 (D), IL_F1 and IL_POF1 (E), and CL_POF1 and IL_POF1 (F). Blue-to-red gradient indicates low-to-high gene expression levels