Article
Maize endosperm-specific transcription factors O2 and PBF network the regulation of protein and starch synthesis.
Proceedings of the National Academy of Sciences of the United States of America - 27 Sept 2016
Zhang Zhiyong, Zheng Xixi, Yang Jun, Messing Joachim, Wu Yongrui
Abstract excerpt
The maize endosperm-specific transcription factors opaque2 (O2) and prolamine-box binding factor (PBF) regulate storage protein zein genes. We show that they also control starch synthesis. The starch content in the PbfRNAi and o2 mutants was reduced by ∼5% and 11%, respectively, compared with normal genotypes. In the double-mutant PbfRNAi;o2, starch was decreased by 25%. Transcriptome analysis reveals that >1,000...
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