Article
Epigenetic allelic states of a maize transcriptional regulatory locus exhibit overdominant gene action.
Genetics - 1 Oct 1998
Hollick J B, Chandler V L
Abstract excerpt
Using alleles of the maize purple plant locus (pl), which encodes a transcriptional regulator of anthocyanin pigment synthesis, we describe a case of single-locus heterosis, or overdominance, where the heterozygote displays a phenotype that is greater than either homozygote. The Pl-Rhoades (Pl-Rh) allele is subject to epigenetic changes in gene expression, resulting in quantitatively distinct expression states....
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