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Genomic imprinting refers to parent‐of‐origin‐dependent gene expression and primarily occurs in the endosperm of flowering plants, but its functions and epigenetic mechanisms remain to be elucidated in eudicots. Castor bean, a eudicot with large and persistent endosperm, provides an excellent system for studying the imprinting.
Here, we identified 131 imprinted genes in developing endosperms and...