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Generation and Functional Characterization of an Allelic Series of osmapk6 Mutants

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  • 1 State Key Laboratory of Black Soils Conservation and Utilization / Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China
    2 University of Chinese Academy of Sciences, Beijing 100049, China
    3 College of Advanced Agriculture and Ecological Environment, Heilongjiang University, Harbin 150080, China
Tian Xiaojie (tianxiaojie@iga.ac.cn)

Received date: 2025-12-13

  Accepted date: 2026-02-02

  Online published: 2026-02-04

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Editorial board of Rice Science, 2026, Copyright © 2026, China National Rice Research Institute. Hosting by Elsevier B V

Cite this article

Zhang Wei, Chen Chunxiao, Fu Linli, Jin Xin, Wang Xinchen, Liu Changhua, Bu Qingyun, Tian Xiaojie . Generation and Functional Characterization of an Allelic Series of osmapk6 Mutants[J]. Rice Science, 2026 , 33(2) : 163 -167 . DOI: 10.1016/j.rsci.2026.02.006

References

[1] Bai C, Wang G J, Feng X H, et al. 2024. OsMAPK6 phosphorylation and CLG1 ubiquitylation of GW6a non-additively enhance rice grain size through stabilization of the substrate. Nat Commun, 15(1): 4300.
[2] Guo T, Lu Z Q, Shan J X, et al. 2020. ERECTA1 acts upstream of the OsMKKK10-OsMKK4-OsMPK6 cascade to control spikelet number by regulating cytokinin metabolism in rice. Plant Cell, 32(9): 2763-2779.
[3] Kim S H, Oikawa T, Kyozuka J, et al. 2012. The bHLH Rac Immunity1 (RAI1) is activated by OsRac1 via OsMAPK3 and OsMAPK6 in rice immunity. Plant Cell Physiol, 53(4): 740-754.
[4] Liu J L, Liu J X, He M L, et al. 2024. OsMAPK6 positively regulates rice cold tolerance at seedling stage via phosphorylating and stabilizing OsICE1 and OsIPA1. Theor Appl Genet, 137(1): 10.
[5] Liu S Y, Hua L, Dong S J, et al. 2015. OsMAPK6, a mitogen-activated protein kinase, influences rice grain size and biomass production. Plant J, 84(4): 672-681.
[6] Mei E Y, He M L, Xu M, et al. 2024. OsWRKY78 regulates panicle exsertion via gibberellin signaling pathway in rice. J Integr Plant Biol, 66(4): 771-786.
[7] Tian X J, Li X F, Zhou W J, et al. 2017. Transcription factor OsWRKY53 positively regulates brassinosteroid signaling and plant architecture. Plant Physiol, 175(3): 1337-1349.
[8] Tian X J, He M L, Mei E Y, et al. 2021. WRKY53 integrates classic brassinosteroid signaling and the mitogen-activated protein kinase pathway to regulate rice architecture and seed size. Plant Cell, 33(8): 2753-2775.
[9] Wang C, Wang G, Zhang C, et al. 2017. OsCERK1-mediated chitin perception and immune signaling requires receptor-like cytoplasmic kinase 185 to activate an MAPK cascade in rice. Mol Plant, 10(4): 619-633.
[10] Xu J, Zhang S Q. 2015. Mitogen-activated protein kinase cascades in signaling plant growth and development. Trends Plant Sci, 20(1): 56-64.
[11] Xu R, Duan P G, Yu H Y, et al. 2018. Control of grain size and weight by the OsMKKK10-OsMKK4-OsMAPK 6 signaling pathway in rice. Mol Plant, 11(6): 860-873.
[12] Ye T T, Wang H J, Zhang L Q, et al. 2025. A novel OsCRK14-OsRLCK57-MAPK signaling module activates OsbZIP66 to confer drought resistance in rice. Mol Plant, 18(8): 1390-1408.
[13] Yi J, Lee Y S, Lee D Y, et al. 2016. OsMPK6 plays a critical role in cell differentiation during early embryogenesis in Oryza sativa. J Exp Bot, 67(8): 2425-2437.
[14] Yu J, Zhu C S, Xuan W, et al. 2023. Genome-wide association studies identify OsWRKY53 as a key regulator of salt tolerance in rice. Nat Commun, 14(1): 3550.
[15] Zeng J G, Duan M M, Wang Y Q, et al. 2024. Sporophytic control of tapetal development and pollen fertility by a mitogen-activated protein kinase cascade in rice. J Integr Plant Biol, 66(7): 1500-1516.
[16] Zhang Y, Cui M M, Ke R N, et al. 2024. C-terminal frameshift mutations generate viable knockout mutants with developmental defects for three essential protein kinases. aBiotech, 5(2): 219-224.
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