An apple (Malus domestica) AP2/ERF transcription factor modulates carotenoid accumulation.

ABSTRACT: Color is an important trait for horticultural crops. Carotenoids are one of the main pigments for coloration and have important implications for photosynthesis in plants and benefits for human health. Here, we identified an APETALA2 (AP2)/ETHYLENE RESPONSE FACTOR (ERF) transcription factor named MdAP2-34 in apple (Malus domestica Borkh.). MdAP2-34 expression exhibited a close correlation with carotenoid content in 'Benin Shogun' and 'Yanfu 3' fruit flesh. MdAP2-34 promotes carotenoid accumulation in MdAP2-34-OVX transgenic apple calli and fruits by participating in the carotenoid biosynthesis pathway. The major carotenoid contents of phytoene and β-carotene were much higher in overexpressing MdAP2-34 transgenic calli and fruit skin, yet the predominant compound of lutein showed no obvious

SUBMITTER: Dang Q 

PROVIDER: S-EPMC8492665 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature