Single and Double Mutations in Tomato Ripening Transcription Factors Have Distinct Effects on Fruit Development and Quality Traits.

ABSTRACT: Spontaneous mutations associated with the tomato transcription factors COLORLESS NON-RIPENING (SPL-CNR), NON-RIPENING (NAC-NOR), and RIPENING-INHIBITOR (MADS-RIN) result in fruit that do not undergo the normal hallmarks of ripening but are phenotypically distinguishable. Here, we expanded knowledge of the physiological, molecular, and genetic impacts of the ripening mutations on fruit development beyond ripening. We demonstrated through phenotypic and transcriptome analyses that Cnr fruit exhibit a broad range of developmental defects before the onset of fruit ripening, but fruit still undergo some ripening changes similar to wild type. Thus, Cnr should be considered as a fruit developmental mutant and not just a ripening mutant. Additionally, we showed that some ripening pro

SUBMITTER: Adaskaveg JA 

PROVIDER: S-EPMC8110730 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature