Identification of two QTLs associated with high fruit acidity in apple using pooled genome sequencing analysis.

ABSTRACT: Acidity is a critical component determining apple fruit quality. Previous studies reported two major acidity quantitative trait loci (QTLs) on linkage groups (LGs) 16 (Ma) and 8 (Ma3), respectively, and their homozygous genotypes mama and ma3ma3 usually confer low titratable acidity (TA) (<3.0 mg ml^-1) to apple fruit. However, apples of genotypes Ma- (MaMa and Mama) or Ma3- (Ma3Ma3 and Ma3ma3) frequently show an acidity range spanning both regular (TA 3.0-10.0 mg ml^-1) and high (TA > 10 mg ml^-1) acidity levels. To date, the genetic control for high-acidity apples remains essentially unknown. In order to map QTLs associated with high acidity, two genomic DNA pools, one for high acidity and

SUBMITTER: Ban S 

PROVIDER: S-EPMC7546611 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature