- Information
- Symbol: OsSPO11-1,OsTOP6A1
- MSU: LOC_Os03g54091
- RAPdb: Os03g0752200
- PSP score
- LOC_Os03g54091.1: 0.0124
- PLAAC score
- LOC_Os03g54091.1: 0
- pLDDT score
- 88.62
- Protein Structure from AlphaFold and UniProt
- Publication
- The role of OsCOM1 in homologous chromosome synapsis and recombination in rice meiosis, 2012, Plant J.
- Overexpression of putative topoisomerase 6 genes from rice confers stress tolerance in transgenic Arabidopsis plants, 2006, FEBS J.
- Constitutive expression of a meiotic recombination protein gene homolog, OsTOP6A1, from rice confers abiotic stress tolerance in transgenic Arabidopsis plants, 2008, Plant Cell Rep.
- OsSPO11-1 is essential for both homologous chromosome pairing and crossover formation in rice, 2010, Chromosoma.
- Genbank accession number
- Key message
- Rice plants with loss-of-function of OsSPO11-1 have no apparent growth defects during vegetative development, but homologous chromosome pairing and recombination are significantly obstructed
- Moreover, OsCOM1 was loaded normally onto meiotic chromosomes in Osrec8, zep1 and Osmer3 mutants, but could not be properly loaded in Osam1, pair2 and OsSPO11-1(RNAi) plants
- The over expression of OsTOP6A1 in transgenic Arabidopsis plants driven by cauliflower mosaic virus-35S promoter resulted in pleiotropic effects on plant growth and development
- OsTOP6A1 was predominantly expressed in prepollinated flowers
- Although AtSPO11-1, the homolog of OsTOP6A1 in Arabidopsis, has been implicated in meiotic recombination; the present study demonstrates possible additional role of OsTOP6A1 and provides an effective tool for engineering crop plants for tolerance to different environmental stresses
- Constitutive expression of a meiotic recombination protein gene homolog, OsTOP6A1, from rice confers abiotic stress tolerance in transgenic Arabidopsis plants
- Thus, OsSPO11-1 is essential for both homologous chromosomes pairing and crossover formation during meiosis in rice
- Connection
- MER3~RCK, OsSPO11-1~OsTOP6A1, OsSPO11-1 is essential for both homologous chromosome pairing and crossover formation in rice, The crossover protein, MER3, isn’t efficiently assembled onto chromosomes and the lack of bivalent suggests that crossovers are also affected in the absence of OsSPO11-1
- OsCOM1, OsSPO11-1~OsTOP6A1, The role of OsCOM1 in homologous chromosome synapsis and recombination in rice meiosis, Moreover, OsCOM1 was loaded normally onto meiotic chromosomes in Osrec8, zep1 and Osmer3 mutants, but could not be properly loaded in Osam1, pair2 and OsSPO11-1(RNAi) plants
- MER3~RCK, OsSPO11-1~OsTOP6A1, The role of OsCOM1 in homologous chromosome synapsis and recombination in rice meiosis, Moreover, OsCOM1 was loaded normally onto meiotic chromosomes in Osrec8, zep1 and Osmer3 mutants, but could not be properly loaded in Osam1, pair2 and OsSPO11-1(RNAi) plants
- OsRad21-4~OsREC8, OsSPO11-1~OsTOP6A1, The role of OsCOM1 in homologous chromosome synapsis and recombination in rice meiosis, Moreover, OsCOM1 was loaded normally onto meiotic chromosomes in Osrec8, zep1 and Osmer3 mutants, but could not be properly loaded in Osam1, pair2 and OsSPO11-1(RNAi) plants
- OsSPO11-1~OsTOP6A1, ZEP1, The role of OsCOM1 in homologous chromosome synapsis and recombination in rice meiosis, Moreover, OsCOM1 was loaded normally onto meiotic chromosomes in Osrec8, zep1 and Osmer3 mutants, but could not be properly loaded in Osam1, pair2 and OsSPO11-1(RNAi) plants
- OsSPO11-1~OsTOP6A1, PAIR2, The role of OsCOM1 in homologous chromosome synapsis and recombination in rice meiosis, Moreover, OsCOM1 was loaded normally onto meiotic chromosomes in Osrec8, zep1 and Osmer3 mutants, but could not be properly loaded in Osam1, pair2 and OsSPO11-1(RNAi) plants
- OsSPO11-1~OsTOP6A1, OsTOP6B, Overexpression of putative topoisomerase 6 genes from rice confers stress tolerance in transgenic Arabidopsis plants, Yeast two-hybrid analysis revealed that the full-length OsTOP6B protein interacts with both OsTOP6A2 and OsTOP6A3, but not with OsTOP6A1
- OsSPO11-1~OsTOP6A1, OsTOP6A3, Overexpression of putative topoisomerase 6 genes from rice confers stress tolerance in transgenic Arabidopsis plants, Yeast two-hybrid analysis revealed that the full-length OsTOP6B protein interacts with both OsTOP6A2 and OsTOP6A3, but not with OsTOP6A1
- OsSPO11-1~OsTOP6A1, TOP6A2~OsTOP6A2, Overexpression of putative topoisomerase 6 genes from rice confers stress tolerance in transgenic Arabidopsis plants, Yeast two-hybrid analysis revealed that the full-length OsTOP6B protein interacts with both OsTOP6A2 and OsTOP6A3, but not with OsTOP6A1
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