Gene Regulatory Changes Associated With Phenological Transitions in an Ecologically Significant Tree Species.

ABSTRACT: Climate change is driving earlier spring leaf-out across temperate regions, but the genetic mechanisms and environmental interactions underlying this variability are poorly understood. We conducted a controlled growth chamber experiment using excised northern red oak (Quercus rubra ) branches, testing the influence of temperature and photoperiod on leaf development. Two genotypes of red oak were exposed to four different warming and daylength treatments, and gene expression was analyzed across stages of bud development. Results revealed significant phenotypic differences between genotypes and across treatments, confirming that leaf-out timing is both genetically determined and environmentally responsive. Our analysis identified several key genes involved in dormancy break and photop

SUBMITTER: Caso-McHugh T 

PROVIDER: S-EPMC12320121 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature