- Information
- Symbol: AMD1,PWA1
- MSU: LOC_Os01g55094
- RAPdb: Os01g0755100
- Publication
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Genbank accession number
- Key message
- AMD1 encodes a grass-specific protein exhibiting transactivation activity in the nucleus and is spatiotemporally expressed in the tapetum and microspores during pollen development
- Taken together, we demonstrate that AMD1 is an important regulatory component involved in the TDR-mediated regulatory pathway to regulate sporopollenin biosynthesis, tapetum degradation, and exine formation for pollen development
- Further biochemical assays indicate that AMD1 directly activates the transcription of DEFECTIVE POLLEN WALL (DPW) and POLYKETIDE SYNTHASE2 (OsPKS2), which are both implicated in sporopollenin biosynthesis during exine formation
- Additionally, AMD1 directly interacts with TAPETUM DEGENERATION RETARDATION (TDR), a key TF involved in the regulation of tapetum degradation and exine formation
- PWA1 interacted with the transcription factor TAPETUM DEGENERATION RETARDATION (TDR)-INTERACTING PROTEIN2 (TIP2, also named bHLH142) in vivo and in vitro
- Further studies suggested that PWA1 has transcriptional activation activity and participates in pollen intine development through the β-glucosidase Os12BGlu38
- Map-based cloning, genetic complementation, and gene knockout experiments revealed that PWA1 corresponds to the gene LOC_Os01g55094 encoding a coiled-coil domain-containing protein
- PWA1 localized to the nucleus, and PWA1 was expressed in the tapetum and microspores
- Connection
- AMD1~PWA1, DPW, Grass-specific ABERRANT MICROSPORE DEVELOPMENT 1 is required for maintaining pollen fertility in rice., Further biochemical assays indicate that AMD1 directly activates the transcription of DEFECTIVE POLLEN WALL (DPW) and POLYKETIDE SYNTHASE2 (OsPKS2), which are both implicated in sporopollenin biosynthesis during exine formation
- AMD1~PWA1, OsPKS2, Grass-specific ABERRANT MICROSPORE DEVELOPMENT 1 is required for maintaining pollen fertility in rice., Further biochemical assays indicate that AMD1 directly activates the transcription of DEFECTIVE POLLEN WALL (DPW) and POLYKETIDE SYNTHASE2 (OsPKS2), which are both implicated in sporopollenin biosynthesis during exine formation
- AMD1~PWA1, TDR, Grass-specific ABERRANT MICROSPORE DEVELOPMENT 1 is required for maintaining pollen fertility in rice., Additionally, AMD1 directly interacts with TAPETUM DEGENERATION RETARDATION (TDR), a key TF involved in the regulation of tapetum degradation and exine formation
- AMD1~PWA1, DPW, POLLEN WALL ABORTION 1 is essential for pollen wall development in rice., In this study, we isolated and characterized the rice male-sterile mutant pollen wall abortion 1 (pwa1), which exhibits a defective pollen wall (DPW) structure and has sterile pollen
- AMD1~PWA1, Os12BGlu38, POLLEN WALL ABORTION 1 is essential for pollen wall development in rice., Further studies suggested that PWA1 has transcriptional activation activity and participates in pollen intine development through the β-glucosidase Os12BGlu38
- AMD1~PWA1, TIP2~bHLH142, POLLEN WALL ABORTION 1 is essential for pollen wall development in rice., PWA1 interacted with the transcription factor TAPETUM DEGENERATION RETARDATION (TDR)-INTERACTING PROTEIN2 (TIP2, also named bHLH142) in vivo and in vitro
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