文献类型： 外文期刊
作者： Yang, Yunan 1 ; Ma, Xiaosong 1 ; Xia, Hui 1 ; Wang, Lei 1 ; Chen, Shoujun 1 ; Xu, Kai 1 ; Yang, Fangwen 1 ; Zou, Yuqiao 1 ; Wang, Yulan 1 ; Zhu, Jinmin 1 ; Li, Tianfei 1 ; Luo, Zhi 1 ; Hu, Songping 2 ; Liao, Zhigang 1 ; Luo, Lijun 1 ; Yu, Shunwu 1 ;
作者机构： 1.Shanghai Acad Agr Sci, Shanghai Agrobiol Gene Ctr, 2901 Beidi Rd, Shanghai 201106, Peoples R China
2.Jiangxi Agr Univ, Res Ctr Plant Funct Genes & Tissue Culture Techno, 1101 Zhimin Ave, Nanchang 330045, Jiangxi, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab Grain Crop Genet Resources Evaluat & Util, 2901 Beidi Rd, Shanghai 201106, Peoples R China
关键词： Alfin-like; abiotic stress; natural variation; seed size; Oryza sativa
期刊名称：PLANT JOURNAL （ 影响因子：7.091； 五年影响因子：8.028 ）
ISSN： 0960-7412
年卷期： 2022 年 112 卷 5 期
页码：
收录情况： SCI
摘要： The Alfin-like (AL) family is a group of small plant-specific transcriptional factors involved in abiotic stresses in dicotyledon. In an early study, we found an AL gene in rice that was associated with grain yield under drought stress. However, little information is known about the AL family in rice. In this study, AL genes in the rice genome were identified, and the OsAL proteins were found to locate in the nucleus and have no transcriptional self-activation activity. The expression of the OsALs was regulated by different environmental stimulations and plant hormones. Association and domestication analysis revealed that natural variation of most OsALs was significantly associated with yield traits, drought resistance and divergence in grain size in indica and japonica rice varieties. Hap1 of OsAL7.1 and Hap7 of OsAL11 were favorable haplotypes of seed weight and germination under osmotic stress. Furthermore, osal7.1 and osal11 mutants have larger seeds and are more sensitive to abscisic acid and mannitol during germination stage. Overexpressing of OsAL7.1 and OsAL11 in rice weakened the tolerance to drought in the adult stage. Thus, our work provides informative knowledge for exploring and harnessing haplotype diversity of OsALs to improve yield stability under drought stress.
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