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New insights on transcriptional regulation of citrus fruit degreening

Date:2016-04-18 Hits:188

A paper entitled “Involvement of an ethylene response factor in chlorophyll degradation during citrus fruit degreening” was recently online published at The Plant Journal(IF=5.972). Dr. Xue-ren Yin, Miss Xiu-lan Xie and Prof. Kong-song Chen from the Fruit Quality Biology Research Team of Zhejiang University are first- and corresponding-author.
In most fruit, chlorophyll degradation occurs during development or postharvest storage, such as citrus. Previously, we have been identified 126 CitAP2/ERF from citrus genome database (Molecular Biology Report, 2014, 41: 4261-4271), and performed the association analysis for AP2/ERF gene and chlorophyll degradation. Present research further indicated that CitERF13 is an important regulator on citrus fruit degreening. Using dual luciferase and yeast one-hybrid assays, CitERF13 was shown to be a potential direct regulator on CitPPH promoter, leading to accumulation of the metabolite of PPH. The function of CitERF13 was further confirmed with transient/stable over-expression in N. tabacum leaves and/or citrus fruit (navel orange ‘Newhall’ and mandarin ‘Ponkan’).
This work was supported by the Program of International Science and Technology Cooperation and the National Basic Research Program of China.
Publication link: http://onlinelibrary.wiley.com/doi/10.1111/tpj.13178/full