文献类型： 外文期刊
作者： Wang, Tao 1 ; Zou, Ting 1 ; He, Zhiyuan 1 ; Yuan, Guoqiang 1 ; Luo, Tao 1 ; Zhu, Jun 1 ; Liang, Yueyang 1 ; Deng, Qiming; 1 ;
作者机构： 1.Sichuan Agr Univ, State Key Lab Hybrid Rice, Chengdu 611130, Sichuan, Peoples R China
2.Sichuan Agr Univ, Rice Res Inst, 211 Huimin Rd, Wenjiang 611130, Peoples R China
3.Southwest Univ Sci & Technol, Rice Res Inst, Mianyang 621010, Sichuan, Peoples R China
4.Hunan Hybrid Rice Res Ctr, State Key Lab Hybrid Rice, Changsha 410125, Hunan, Peoples R China
期刊名称：JOURNAL OF INTEGRATIVE PLANT BIOLOGY （ 影响因子：7.061； 五年影响因子：6.002 ）
ISSN： 1672-9072
年卷期： 2019 年 61 卷 10 期
页码：
收录情况： SCI
摘要： Grain size is an important factor determining yield in rice. Here, we identified a recessive mutant gene, grain length and awn 1 (gla1), which caused a significant increase in grain length and weight, and was associated with long awns. The gla1 mutation was mapped to a single-nucleotide polymorphism in a gene encoding a cytoplasmically-localized mitogen-activated protein kinase (MAPK) phosphatase. Overexpression of GLA1 caused a decrease in grain length, and the GLA1 protein interacted with OsMAPK6. These results suggest that GLA1 may serve as a negative regulator of the OsMAPKK4-OsMAPK6 cascade, controlling grain size via the dephosphorylation of OsMAPK6.
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