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Reference Detail
| Reference | ||
|---|---|---|
| Author | Li X.P., Ma X.C., Wang H., Zhu Y., Liu X.X., Li T.T., Zheng Y.P., Zhao J.Q., Zhang J.W., Huang Y.Y., Pu M., Feng H., Fan J., Li Y., Wang W.M. | |
| Title | Osa-miR162a fine-tunes rice resistance to Magnaporthe oryzae and Yield. | |
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Abstract: MicroRNAs (miRNAs) play essential roles in rice immunity against Magnaporthe oryzae, the causative agent of rice blast disease. Here we demonstrate that Osa-miR162a fine-tunes rice immunity against M. oryzae and yield traits. Overexpression of Osa-miR162a enhances rice resistance to M. oryzae accompanying enhanced induction of defense-related genes and accumulation of hydrogen peroxide (H2O2). In contrast, blocking Osa-miR162 by overexpressing a target mimic of Osa-miR162a enhances susceptibility to blast fungus associating with compromised induction of defense-related gene expression and H2O2 accumulation. Moreover, the transgenic lines overexpressing Osa-miR162a display decreased seed setting rate resulting in slight reduced yield per plant, whereas the transgenic lines blocking Osa-miR162 show an increased number of grains per panicle, resulting in increased yield per plant. Altered accumulation of Osa-miR162 had a limited impact on the expression of rice Dicer-like 1 (OsDCL1) in these transgenic lines showing normal gross morphology, and silencing of OsDCL1 led to enhanced resistance to blast fungus similar to that caused by overexpression of Osa-miR162a, suggesting the involvement of OsDCL1 in Osa-miR162a-regulated resistance. Together, our results indicate that Osa-miR162a is involved in rice immunity against M. oryzae and fine-tunes resistance and yield. |
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| Journal | Rice (N Y) | |
| Country | China | |
| Volume | 13(1) | |
| Pages | 38 | |
| Year | 2020 | |
| PubMed ID | 32524307 | |
| PubMed Central ID | 7287001 | |
| DOI | 10.1186/s12284-020-00396-2 | |
| URL | - | |
| Relation | ||
| Gene | DCL1 DUF292 KS4 MIR162A NAC4 | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
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Lethal Embryo Mutantion Strain |
- | |
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Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
