Graph pangenome reveals the regulation of malate content in blood-fleshed peach by NAC transcription factors.

ABSTRACT:

Background

Fruit acidity and color are important quality attributes in peaches. Although there are some exceptions, blood-fleshed peaches typically have a sour taste. However, little is known about the genetic variations linking organic acid and color regulation in peaches.

Results

Here, we report a peach graph-based pangenome constructed from sixteen individual genome assemblies, capturing abundant structural variations and 82.3 Mb of sequences absent in the reference genome. Pangenome analysis reveals a long terminal repeat retrotransposon insertion in the promoter of the NAC transcription factor (TF) PpBL in blood-fleshed peaches, which enhances PpBL expression. Genome-wide association study identifies a significant association between PpBL and malate content. Silencing P

SUBMITTER: Chen W 

PROVIDER: S-EPMC11721062 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature