- Information
- Symbol: TAP,TSD1
- MSU: LOC_Os02g18370
- RAPdb: Os02g0284500
- Publication
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Genbank accession number
- Key message
- Consistent with its thermosensitive phenotype, TAP expression is induced by high temperature
- TAP directly promotes the expression of OsYABBY3 (OsYAB3), OsYAB4, and OsYAB5, which encode key transcriptional regulators in panicle and spikelet development
- In addition, TAP physically interacts with OsYAB4 and OsYAB5 proteins; phenotypic analysis of osyab4 tap-1 and osyab5 tap-1 double mutants indicates that TAP-OsYAB4/OsYAB5 complexes act to maintain normal panicle and spikelet development
- The tap mutants display high temperature-dependent reproductive abnormalities, including compromised secondary branch and spikelet initiation and pleiotropic floral organ defects
- We isolated a Poaceae-specific FAR-RED ELONGATED HYPOCOTYLS3 (FHY3)/FAR-RED IMPAIRED RESPONSE1 (FAR1)family transcription factor, Thermo-sensitive Spikelet Defects 1 (TSD1), derived from transposase in rice (Oryza sativa) TSD1 was highly expressed in spikelets, induced by heat, and specifically enhanced the thermotolerance of spikelet morphogenesis
- Disrupting TSD1 did not affect vegetative growth but markedly retarded spikelet initiation and development, as well as caused varying degrees of spikelet degeneration, depending on the temperature
- Most tsd1 spikelets were normal at low temperature but gradually degenerated as temperature increased, and all disappeared at high temperature, leading to naked branches
- Notably, the knockout mutant yab5-ko and double mutant tsd1 yab5-ko resembled tsd1 in spikelet appearance and response to temperature, indicating that these genes likely participate in spikelet development through the cooperative TSD1-YABBY module
- These YABBY proteins can form either homodimers or heterodimers and play an important role in spikelet morphogenesis, similar to TSD1
- Connection
- OsYABBY3~OsYAB4~TOB3, TAP~TSD1, THERMOSENSITIVE BARREN PANICLE TAP is required for rice panicle and spikelet development at high ambient temperature., TAP directly promotes the expression of OsYABBY3 (OsYAB3), OsYAB4, and OsYAB5, which encode key transcriptional regulators in panicle and spikelet development
- OsYABBY3~OsYAB4~TOB3, TAP~TSD1, THERMOSENSITIVE BARREN PANICLE TAP is required for rice panicle and spikelet development at high ambient temperature., In addition, TAP physically interacts with OsYAB4 and OsYAB5 proteins; phenotypic analysis of osyab4 tap-1 and osyab5 tap-1 double mutants indicates that TAP-OsYAB4/OsYAB5 complexes act to maintain normal panicle and spikelet development
- OsYABBY5~OsYAB3~TOB1, TAP~TSD1, THERMOSENSITIVE BARREN PANICLE TAP is required for rice panicle and spikelet development at high ambient temperature., TAP directly promotes the expression of OsYABBY3 (OsYAB3), OsYAB4, and OsYAB5, which encode key transcriptional regulators in panicle and spikelet development
- OsYABBY6~OsYAB5, TAP~TSD1, THERMOSENSITIVE BARREN PANICLE TAP is required for rice panicle and spikelet development at high ambient temperature., TAP directly promotes the expression of OsYABBY3 (OsYAB3), OsYAB4, and OsYAB5, which encode key transcriptional regulators in panicle and spikelet development
- OsYABBY6~OsYAB5, TAP~TSD1, THERMOSENSITIVE BARREN PANICLE TAP is required for rice panicle and spikelet development at high ambient temperature., In addition, TAP physically interacts with OsYAB4 and OsYAB5 proteins; phenotypic analysis of osyab4 tap-1 and osyab5 tap-1 double mutants indicates that TAP-OsYAB4/OsYAB5 complexes act to maintain normal panicle and spikelet development
- OsPIN1~REH1~PIN1b~OsPIN1b, TAP~TSD1, Mutation of OsPIN1b by CRISPR/Cas9 Reveals a Role for Auxin Transport in Modulating Rice Architecture and Root Gravitropism., Moreover, ospin1b mutants displayed a curly root phenotype cultured with tap water regardless of lighting conditions, while nutrient solution culture could partially rescue the curly root phenotype in light and almost completely abolish this phenotype in darkness, indicating the involvement of the integration of light and nutrient signals in root gravitropism regulation
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