Mapping and characterization QTLs for phenological traits in seven pedigree-connected peach families.

ABSTRACT:

Background

Environmental adaptation and expanding harvest seasons are primary goals of most peach [Prunus persica (L.) Batsch] breeding programs. Breeding perennial crops is a challenging task due to their long breeding cycles and large tree size. Pedigree-based analysis using pedigreed families followed by haplotype construction creates a platform for QTL and marker identification, validation, and the use of marker-assisted selection in breeding programs.

Results

Phenotypic data of seven F₁ low to medium chill full-sib families were collected over 2 years at two locations and genotyped using the 9 K SNP Illumina array. Three QTLs were discovered for bloom date (BD) and mapped on linkage group 1 (LG1) (172-182 cM), LG4 (48-54 cM), and LG7 (62-70 cM), explaining 17

SUBMITTER: Rawandoozi ZJ 

PROVIDER: S-EPMC7962356 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature