ArticleProceedings of the National Academy of Sciences of the United States of America2013
TAWAWA1, a regulator of rice inflorescence architecture, functions through the suppression of meristem phase transition.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 117 papers.
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117 citing papers in PubMed, 290 citations in OpenAlex.
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- Rare Natural SNP Activates SHOOT APICAL MERISTEM ENLARGER1 to Increase Branch Number and Silique Number on the Main Inflorescence in Brassica napus.Plant biotechnology journal · 2026Article
- Florigen and cytokinin signaling antagonistically regulate FLOWERING LOCUS T-LIKE1 to drive a florigen relay that facilitates inflorescence development in rice.Science advances · 2025Article
- Genetic linkage map construction and QTL mapping for panicle-related traits in foxtail millet (Molecular breeding : new strategies in plant improvement · 2025Article
- Modification of TAWAWA1-mediated panicle architecture by genome editing of a downstream conserved noncoding sequence in rice.Plant biotechnology journal · 2025Article
- How meristems shape plant architecture in cereals-Cereal Stem Cell Systems (CSCS) Consortium.The Plant cell · 2025Review
- Harnessing neo-domestication of wild pigmented rice for enhanced nutrition and sustainable agriculture.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Review
- Characterization and Expression Analysis of thePlants (Basel, Switzerland) · 2025Article
- Competitive binding of small antagonistic peptides to the OsER1 receptor optimizes rice panicle architecture.Plant communications · 2025Article
- Genome-wide identification and characterization ofFrontiers in plant science · 2025Article
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- Cytokinin and ALOG proteins regulate pluripotent stem cell identity in the mossScience advances · 2024Article
- A distinct foliar pigmentation pattern formed by activator-repressor gradients upstream of an anthocyanin-activating R2R3-MYB.Cell reports · 2024Article
- Identification, validation and candidate gene analysis of major QTL for Supernumerary spikelets in wheat.BMC genomics · 2024Article
- Photoperiod-1 regulates the wheat inflorescence transcriptome to influence spikelet architecture and flowering time.Current biology : CB · 2024Article
- Identification of genomic regions controlling spikelet degeneration under FRIZZLE PANICLE (FZP) defect genetic background in rice.Scientific reports · 2024Article
- A SEPALLATA MADS-Box Transcription Factor, SlMBP21, Functions as a Negative Regulator of Flower Number and Fruit Yields in Tomato.Plants (Basel, Switzerland) · 2024Article
57 more citing papers are in PubMed but not listed here.
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Authors and funding
16 authors at 5 institutions in 1 country.
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Abstract
Inflorescence structures result from the activities of meristems, which coordinate both the renewal of stem cells in the center and organ formation at the periphery. The fate of a meristem is specified at its initiation and changes as the plant develops. During rice inflorescence development, newly formed meristems acquire a branch meristem (BM) identity, and can generate further meristems or terminate as spikelets. Thus, the form of rice inflorescence is determined by a reiterative pattern of decisions made at the meristems. In the dominant gain-of-function mutant tawawa1-D, the activity of the inflorescence meristem (IM) is extended and spikelet specification is delayed, resulting in prolonged branch formation and increased numbers of spikelets. In contrast, reductions in TAWAWA1 (TAW1) activity cause precocious IM abortion and spikelet formation, resulting in the generation of small inflorescences. TAW1 encodes a nuclear protein of unknown function and shows high levels of expression in the shoot apical meristem, the IM, and the BMs. TAW1 expression disappears from incipient spikelet meristems (SMs). We also demonstrate that members of the SHORT VEGETATIVE PHASE subfamily of MADS-box genes function downstream of TAW1. We thus propose that TAW1 is a unique regulator of meristem activity in rice and regulates inflorescence development through the promotion of IM activity and suppression of the phase change to SM identity.
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