Identification of a GCC transcription factor responding to fruit colour change events in citrus through the transcriptomic analyses of two mutants.

ABSTRACT:

Background

External ripening in Citrus fruits is morphologically characterized by a colour shift from green to orange due to the degradation of chlorophylls and the accumulation of carotenoid pigments. Although numerous genes coding for enzymes involved in such biochemical pathways have been identified, the molecular control of this process has been scarcely studied. In this work we used the Citrus clementina mutants 39B3 and 39E7, showing delayed colour break, to isolate genes potentially related to the regulation of peel ripening and its physiological or biochemical effects.

Results

Pigment analyses revealed different profiles of carotenoid and chlorophyll modification in 39B3 and 39E7 mutants. Flavedo from 39B3 fruits showed an overall delay in carotenoid accumulation and

SUBMITTER: Rios G 

PROVIDER: S-EPMC3014968 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature