Plant Mol Biol (2017) 93:185–195 DOI 10.1007/s11103-016-0556-6 The far-upstream regulatory region of RFL is required for its precise spatial-temporal expression for floral development in rice 1,4,5 1,4 1,2,4 1,2,3,4 4 Sulin Lou · Shuifu Chen · Xiucai Zhao · Letian Chen · Jian Zhang · 4 1,2,4 1,2,4 Hongxiang Fu · Yao-Guang Liu · Yuanling Chen Received: 19 February 2016 / Accepted: 24 October 2016 / Published online: 12 November 2016 © Springer Science+Business Media Dordrecht 2016 Abstract Abstract The LEAFY (LFY) transcription factor and its Key message A rice mutant aberrant floral organ 1 homologs affect many aspects of plant development, espe- (afo1) was identified, showing increased floral organ cially floral development. RICE FLORICAULA/LEAFY number, aberrant floral organ identity and loss of floral (RFL), the rice ortholog of LFY, has complicated expres- meristem determinacy. A disruption of sequence integ- sion patterns and different functions in floral development. rity at 6292-bp upstream of RFL by a T-DNA insertion However, the mechanisms regulating the spatial-tempo- led to varied RFL expression patterns in floral meristem ral expression of RFL remain largely unknown. Here, we and floret in afo1 and caused the mutant phenotype. describe a rice aberrant floral organ 1 (afo1) mutant that was produced by a T-DNA insertion at 6292-bp upstream of
Plant Molecular Biology – Springer Journals
Published: Nov 12, 2016
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