Genomic and transcriptomic analyses provide new insights into the complex impacts of bud mutation in peach.

ABSTRACT: Bud mutation is an important solution in fruit breeding, but the mechanism of bud mutation remains largely unknown. Here, we present the phenotypic, genomic, and transcriptomic analyses of a peach hairless bud mutation. Phenotypic analyses found an increase in the soluble solid content (SSC), fructose, and glucose, as well as a decrease in fruit weight, sucrose, and sorbitol in hairless bud mutation. Genomic analyses showed a higher number of SNPs, indels, SVs, and TEs in the hairless bud mutation than the wild type. Moreover, most of the variations were heterozygous. An LTR transpose element in the third exon of PpMYB25 was identified in the hairless mutation, but was absent in the wild type, underlying the hairless phenotype. A total of 660 differentially expressed genes were identified

SUBMITTER: Rui G 

PROVIDER: S-EPMC12216846 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature