ArticlePlant molecular biology2016
OsPhyA modulates rice flowering time mainly through OsGI under short days and Ghd7 under long days in the absence of phytochrome B.
Article in Plant molecular biology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 40 citations in OpenAlex.
- Genome-wide identification of the PIF gene family in broomcorn millet (Panicum miliaceum) highlights PmPIF5 as a candidate regulator of photoperiod responses.BMC plant biology · 2026Article
- Genetic Interaction Effects of Heading Date GenesPlants (Basel, Switzerland) · 2026Article
- Isolation ofBiology · 2025Article
- Research Progress on Photoperiod Gene Regulation of Heading Date in Rice.Current issues in molecular biology · 2024Review
- OsCKq1 Regulates Heading Date and Grain Weight in Rice in Response to Day Length.Rice (New York, N.Y.) · 2024Article
- Genomic insights into the origin and evolution of spelt (Triticum spelta L.) as a valuable gene pool for modern wheat breeding.Plant communications · 2024Article
- QTL epistasis plays a role of homeostasis on heading date in rice.Scientific reports · 2024Article
- The transcription factor HBF1 directly activates expression of multiple flowering time repressors to delay rice flowering.aBIOTECH · 2023Article
- GWAS analysis to elucidate genetic composition underlying a photoperiod-insensitive rice population, North Korea.Frontiers in genetics · 2022Article
- Bifunctional regulators of photoperiodic flowering in short day plant rice.Frontiers in plant science · 2022Review
- Genome-wide in silico analysis of long intergenic non-coding RNAs from rice peduncles at the heading stage.Physiology and molecular biology of plants : an international journal of functional plant biology · 2021Article
- Coordinative regulation of plants growth and development by light and circadian clock.aBIOTECH · 2021Review
- Molecular basis of heading date control in rice.aBIOTECH · 2020Review
- Characterization of the transcriptional divergence between the subspecies of cultivated rice (Oryza sativa).BMC genomics · 2020Article
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Authors and funding
3 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
Phytochromes recognize light signals and control diverse developmental processes. In rice, all three phytochrome genes-OsphyA, OsphyB, and OsphyC-are involved in regulating flowering time. We investigated the role of OsPhyA by comparing the osphyA osphyB double mutant to an osphyB single mutant. Plants of the double mutant flowered later than the single under short days (SD) but bolted earlier under long days (LD). Under SD, this delayed-flowering phenotype was primarily due to the decreased expression of Oryza sativa GIGANTEA (OsGI), which controls three flowering activators: Heading date 1 (Hd1), OsMADS51, and Oryza sativa Indeterminate 1 (OsId1). Under LD, although the expression of several repressors, e.g., Hd1, Oryza sativa CONSTANS-like 4 (OsCOL4), and AP2 genes, was affected in the double mutant, that of Grain number, plant height and heading date 7 (Ghd7) was the most significantly reduced. These results indicated that OsPhyA influences flowering time mainly by affecting the expression of OsGI under SD and Ghd7 under LD when phytochrome B is absent. We also demonstrated that far-red light delays flowering time via both OsPhyA and OsPhyB.
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