(A) Venn diagram of Otx1 and Vegt biologically reproducible peak
overlaps.
(B) Genome browser view of Otx1 and Vegt ChIP-seq near endodermal
(nodal6, sox17b.1,
sox17b.2, mixer, mix1),
mesodermal (fgf20), and mesendodermal (gsc,
hhex) genes.
(C) Genomic annotation of the location of all Vegt, all Otx1, and
Vegt+Otx1 overlapping peaks.
(D) Gastrula stage expression pattern of genes associated with all Vegt,
all Otx1, and Vegt+Otx1 overlapping peaks. Genes were assigned as
“endoderm,” “mesoderm,” or “ectoderm,”
based on which germ layer showed the highest expression in TPM.
(E and F) Chromatin binding of Vegt (E) and Otx1 (F) near genes involved
in germ layer formation identified using ChIP-qPCR on 32-cell stage embryos.
eef1a1 and ins promoters were used as
negative control. The error bars represent the variation from 3 technical
replicates.