Transposable element-mediated DNA methylation of the NAC20 and NAC26 promoters led to a maternal effect on grain filling.

Abstract excerpt

Parent-of-origin effects are usually caused by selective expression of maternal or paternal alleles. Although genome-wide studies suggest that imprinted gene expression occurs primarily in the endosperm in plants, detailed studies of allele-specific gene expression and its associations with parent-of-origin phenotypes are scarce. NAC20 and NAC26 (NAC20/26 hereafter), a pair of tightly linked NAC-family...

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