- Information
- Symbol: OsTPP7,AG1
- MSU: LOC_Os09g20390
- RAPdb: Os09g0369400
- Publication
- A trehalose-6-phosphate phosphatase enhances anaerobic germination tolerance in rice., 2015, Nat Plants.
- Dissection of coleoptile elongation in japonica rice under submergence through integrated genome wide association mapping and transcriptional analyses., 2019, Plant Cell Environ.
- Flood resilience loci SUBMERGENCE 1 and ANAEROBIC GERMINATION 1 interact in seedlings established underwater, 2020, Plant Direct.
- Dynamic genome-wide association analysis and identification of candidate genes involved in anaerobic germination tolerance in rice, 2021, Rice (N Y).
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Genbank accession number
- Key message
- OsTPP7 activity may increase sink strength in proliferating heterotrophic tissues by indicating low sugar availability through increased T6P turnover, thus enhancing starch mobilization to drive growth kinetics of the germinating embryo and elongating coleoptile, which consequently enhances anaerobic germination tolerance
- OsTPP7 is involved in trehalose-6-phosphate (T6P) metabolism, central to an energy sensor that determines anabolism or catabolism depending on local sucrose availability(8,9)
- However, the pyramided AG1 SUB1 genotype displays reduced survival when seeds are planted underwater and maintained under submergence for 16 d
- Connection
- OsTPP7~AG1, Sub1A, Flood resilience loci SUBMERGENCE 1 and ANAEROBIC GERMINATION 1 interact in seedlings established underwater, Flood resilience loci SUBMERGENCE 1 and ANAEROBIC GERMINATION 1 interact in seedlings established underwater
- OsTPP7~AG1, Sub1A, Flood resilience loci SUBMERGENCE 1 and ANAEROBIC GERMINATION 1 interact in seedlings established underwater, To better understand the roles of TPP7 and SUB1A-1 and their interaction, temporal changes in carbohydrates and shoot transcriptomes were monitored in the four genotypes varying at the two loci at four developmental timeponts, from day 2 after seeding through day 14 of complete submergence.
- OsTPP7~AG1, Sub1A, Flood resilience loci SUBMERGENCE 1 and ANAEROBIC GERMINATION 1 interact in seedlings established underwater, These results suggest that interactions between AG1/TPP7 and SUB1/SUB1A-1 could impact seedling establishment if paddy depth is not effectively managed after direct seeding.
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