MaMADS2 repression in banana fruits modifies hormone synthesis and signalling pathways prior to climacteric stage.

ABSTRACT:

Background

While the role of ethylene in fruit ripening has been widely studied, the contributions of additional plant hormones are less clear. Here we examined the interactions between the transcription factor MaMADS2-box which plays a major role in banana fruit ripening and hormonal regulation. Specifically, we used MaMADS2 repressed lines in transcriptome and hormonal analyses throughout ripening and assessed hormone and gene expression perturbations as compared to wild-type (WT) control fruit.

Results

Our analyses revealed major differences in hormones levels and in expression of hormone synthesis and signaling genes mediated by MaMADS2 especially in preclimacteric pulp. Genes encoding ethylene biosynthesis enzymes had lower expression in the pulp of the repressed lines,

SUBMITTER: Yakir E 

PROVIDER: S-EPMC6219179 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature