EuAP2a, a key gene that regulates flowering time in peach (<i>Prunus persica</i>) by modulating thermo-responsive transcription programming.

ABSTRACT: Frequent spring frost damage threatens temperate fruit production, and breeding of late-flowering cultivars is an effective strategy for preventing such damage. However, this effort is often hampered by the lack of specific genes and markers and a lack of understanding of the mechanisms. We examined a Late-Flowering Peach (LFP) germplasm and found that its floral buds require a longer chilling period to release from their dormancy and a longer warming period to bloom than the control cultivar, two key characteristics associated with flowering time. We discovered that a 983-bp deletion in euAP2a, an APETALA2 (AP2)-related gene with known roles in regulating floral organ identity and flowering time, was primarily responsible for late flowering in LFP. This

SUBMITTER: Liu J 

PROVIDER: S-EPMC11091482 | biostudies-literature | 2024 May

REPOSITORIES: biostudies-literature