Imprinting of R-r, paramutation of B-I and Pl, and epigenetic silencing of MuDR/Mu transposons in Zea mays L. are coordinately affected by inbred background.

Abstract excerpt

The extent of imprinting at R-r, frequency of paramutation at B-Intense and Pl, and epigenetic silencing of Mu transposons were evaluated in the W23 and A188 inbred lines of maize. All types of epigenetic phenomena affecting these loci of the anthocyanin pathway occurred more frequently in the W23 inbred line. Absence of down-regulation was dominant in F1 hybrid progeny. Identical alleles programme lower...

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