Temperature-induced variation in the transcriptome of maritime pine (Pinus pinaster Ait.) embryogenic masses modulates the phenotype of the derived plants.

ABSTRACT: A number of studies show that combining somatic embryogenesis with environmental stimuli can induce plant defenses against abiotic stresses, offering a complementary strategy in tree breeding programs. In a previous study, we found that increasing/decreasing the standard temperature of 23 ˚C by 5 ˚C during maritime pine (Pinus pinaster) somatic embryo maturation resulted in epitypes, as the derived plants showed altered phenotypes regarding leaf histology, proline content, photosynthetic rates, and hormone profiles, and that also differentially respond after a short-term heat stress. To elucidate the mechanisms underlying these altered phenotypes, we sequenced the transcriptome of embryonal-suspensor masses (EMs) from the three epitypes, identifying 812 differentially expressed genes (DEGs

SUBMITTER: Montero-Pau J 

PROVIDER: S-EPMC12065292 | biostudies-literature | 2025 May

REPOSITORIES: biostudies-literature