RRC ID 11902
Author Johzuka-Hisatomi Y, Noguchi H, Iida S.
Title The molecular basis of incomplete dominance at the A locus of CHS-D in the common morning glory, Ipomoea purpurea.
Journal J. Plant Res.
Abstract The mutable a(flaked (a(f)) allele at the A locus of the common morning glory (Ipomoea purpurea) confers incomplete dominance in flower pigmentation and is caused by insertion of the DNA transposon Tip100 into CHS-D, which encodes chalcone synthase and is required for anthocyanin biosynthesis. Levels of CHS-D transcripts, CHS-D protein, and anthocyanin pigment in heterozygous flowers were about half that in homozygous flowers, indicating that dosage-dependent expression of CHS-D is the primary cause of the observed incomplete dominance. This contrasts with the Nivea locus in snapdragon (Antirrhinum majus) in which incomplete dominance is caused by semi-dominant CHS alleles.
Volume 124(2)
Pages 299-304
Published 2011-3
DOI 10.1007/s10265-010-0369-7
PMID 20680382
MeSH Acyltransferases / genetics* Alleles Anthocyanins / genetics Anthocyanins / metabolism* Base Sequence DNA Transposable Elements DNA, Plant / genetics Flowers / anatomy & histology Flowers / chemistry Flowers / genetics Gene Dosage Genes, Plant / genetics Ipomoea / enzymology Ipomoea / genetics* Molecular Sequence Data Mutagenesis, Insertional Oxidoreductases / genetics Pigmentation / genetics* Sequence Analysis, DNA
IF 2.0
Times Cited 2
Morning Glory AK302 AK304 AK312 EST clones