Maize enr System of r1 Haplotype-Specific Aleurone Color Enhancement Factors

We describe a family of 3 dominant r1 haplotype-specific enhancers of aleurone color in Zea mays. Stable alleles of the 3 enhancement of r1 loci (enr1, enr2, and enr3) intensify aleurone color conferred by certain pale and near-colorless r1 haplotypes. In addition, unstable alleles of enr1 act on th...

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Bibliographic Details
Published in:The Journal of heredity 2009-03, Vol.100 (2), p.217-228
Main Authors: Stinard, Philip S, Kermicle, Jerry L, Sachs, Martin M
Format: Article
Language:English
Subjects:
Botany
Chromosome Mapping
Chromosomes, Plant
Color
Corn
Crosses, Genetic
DNA Transposable Elements - physiology
dominant color enhancer
Epistasis, Genetic
epistatic interactions
Fcu
Genes, Plant
Genetic Linkage
Genetics
Haplotypes
Models, Biological
Mutagenesis, Insertional - genetics
Mutagenesis, Insertional - physiology
Pigmentation - genetics
Plants, Genetically Modified
Quantitative Trait Loci - genetics
r1 locus
transposable elements
Zea mays
Zea mays - genetics
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Summary:We describe a family of 3 dominant r1 haplotype-specific enhancers of aleurone color in Zea mays. Stable alleles of the 3 enhancement of r1 loci (enr1, enr2, and enr3) intensify aleurone color conferred by certain pale and near-colorless r1 haplotypes. In addition, unstable alleles of enr1 act on the same set of r1 haplotypes, producing spotted kernels. Components of this instability cross react with the Fcu system of instability. Two of the enr loci are linked with one another but none of the 3 are linked with r1. The r1 haplotypes affected by enr alleles overlap those affected by the inr family of r1 haplotype-specific inhibitors of aleurone color, suggesting a possible interaction.
ISSN:0022-1503
1465-7333
DOI:10.1093/jhered/esn091