Daucus carota petaloid QTLseq

Homeotic alteration phenotype of the flowers in Daucus carota is widely used for hybrid breeding, and thus molecular markers tightly-linked to the phenotype is demanded. Here we report the identification of a gene locus responsible for the phenotypic expression of stamen conversion into petal-like structure, or the petaloid. Using the segregating population and sequencing analysis of the two bulked population, we discovered the largest contributing peak on the long arm of chromosomes 4.