Natural variation in MdNAC5 contributes to fruit firmness and ripening divergence in apple.

ABSTRACT: Fruit firmness is an important trait for characterizing the quality and value of apple. It also serves as an indicator of fruit maturity, as it is a complex trait regulated by multiple genes. Resequencing techniques can be employed to elucidate variations in such complex fruit traits. Here, the whole genomes of 294 F ₁ hybrids of 'Fuji' and 'Cripp's Pink' were resequenced, and a high-density binmap was constructed using 5014 bin markers with a total map distance of 2213.23 cM and an average map distance of 0.44 cM. Quantitative trait loci (QTLs) of traits related to fruit were mapped, and an A-T allele variant identified in the coding region of MdNAC5 was found to potentially regulate fruit firmness and ripening. The overexpression of MdNAC5 ^A

SUBMITTER: Liu L 

PROVIDER: S-EPMC11758708 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature