A miR172 target-deficient AP2-like gene correlates with the double flower phenotype in roses.

ABSTRACT: One of the well-known floral abnormalities in flowering plants is the double-flower phenotype, which corresponds to flowers that develop extra petals, sometimes even containing entire flowers within flowers. Because of their highly priced ornamental value, spontaneous double-flower variants have been found and selected for in a wide range of ornamental species. Previously, double flower formation in roses was associated with a restriction of AGAMOUS expression domain toward the centre of the meristem, leading to extra petals. Here, we characterized the genomic region containing the mutation associated with the switch from simple to double flowers in the rose. An APETALA2-like gene (RcAP2L), a member of the Target Of EAT-type (TOE-type) subfamily, lies within this interval. In the double fl

SUBMITTER: Francois L 

PROVIDER: S-EPMC6110776 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature