Multi-omics approaches identify a key gene, PpTST1, for organic acid accumulation in peach.

ABSTRACT: Organic acid content in fruit is an important determinant of peach organoleptic quality, which undergoes considerable variations during development and maturation. However, its molecular mechanism remains largely unclear. In this study, an integrative approach of genome-wide association studies and comparative transcriptome analysis were applied to identify candidate genes involved in organic acid accumulation in peach. A key gene PpTST1, encoding tonoplast sugar transporter, was identified and the genotype of PpTST1 with a single-base transversion (G1584T) in the third exon which leads to a single amino acid substitution (Q528H) was associated with low level of organic acid content in peach. Overexpression of PpTST1His resulted in reduced organic acid content along with increased sugar co

SUBMITTER: Wang Q 

PROVIDER: S-EPMC9171119 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature