Fine mapping and identifying candidate gene of underlying yellow peel in .

As a conspicuous trait, peel color is one of the most important characteristics that affects commodity quality and consumer preferences. The locus underlying yellow peel in (zucchini) was first reported in 1922; however, its molecular mechanism is still unknown. In this study, a genetic analysis revealed that yellow peel is controlled by a single dominant genetic factor.

Combined analysis of carotenoid metabolites and the transcriptome to reveal the molecular mechanism underlying fruit colouration in zucchini ( L.).

To reveal the molecular mechanism underlying peel colouration, carotenoid metabolites and the transcriptome were jointly analysed in zucchini peels with three different colours: light green (Lg), yellow (Y), and orange (O). Our results showed that the carotenoid levels in O (157.075 μg/g) and Y (22.