Identification and differential expression analysis of anthocyanin biosynthetic genes in root-skin color variants of radish (Raphanus sativus L.).

Background: Taproot skin color is a major trait for assessing the commercial and nutritional quality of radish, and red-skinned radish is confirmed to improve consumer's interest and health. However, little is known about the molecular mechanisms responsible for controlling the formation of red-skinned radish.

Objective: This study aimed to identify the differentially expressed anthocyanin biosynthetic genes between red- and white-skinned radishes and understand the molecular regulatory mechanism underlying red-skinned radish formation.