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Characterization and Expression Analysis of the ALOG Gene Family in Rice (Oryza sativa L.)

文献类型： 外文期刊

作者： Luo, Xi 1 ; Wang, Hongfei 1 ; Wei, Yidong 1 ; Wu, Fangxi 1 ; Zhu, Yongsheng 1 ; Xie, Hongguang 1 ; Xie, Huaan 1 ; Zhang, Jianfu 1 ;

作者机构： 1.Fujian Acad Agr Sci, Rice Res Inst, Fuzhou 350019, Peoples R China

2.Natl Ctr Rice Improvement China, Fuzhou Branch, State Key Lab Ecol Pest Control Fujian & Taiwan Cr, Key Lab Germplasm Innovat & Mol Breeding Hybrid Ri, Fuzhou 350003, Peoples R China

关键词： rice; ALOG; IDRs; RNA sequencing; inflorescence development

期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）

ISSN： 2223-7747

年卷期： 2025 年 14 卷 8 期

页码：

收录情况： SCI

摘要： ALOG (Arabidopsis LSH1 and Oryza G1) proteins constitute a plant-specific family of transcription factors that play crucial roles in lateral organ development across land plants. Initially identified through forward genetic studies of Arabidopsis LSH1 and rice G1 proteins, ALOG family members have since been functionally characterized in various plant species. However, research focusing on the characteristics and expression patterns of all ALOG family members in rice remains relatively limited. In this study, we systematically characterized OsALOG family genes in rice. Compared to other genes in rice and Arabidopsis, the ALOG family genes have a relatively simple structure. The alignment of OsALOG amino acid sequences and analysis of disorder predictions reveal that all members possess conserved ALOG domains, while the conservation of intrinsically disordered regions (IDRs) is relatively low. Four amino acids-alanine, glycine, proline, and serine-are significantly enriched in the IDRs of each ALOG protein. Synteny analysis indicates that most OsALOG genes have undergone considerable divergence compared to their counterparts in Arabidopsis. Bioinformatic analysis of cis-regulatory elements predicts that OsALOG family genes contain elements responsive to ABA, light, and methyl jasmonate, although the abundance and composition of these elements vary among different members. The expression patterns associated with the rice floral development of OsALOG genes can be broadly categorized into two types; however, even within the same type, differences in expression levels, as well as the initiation time and duration of expression, were observed. These results provide a comprehensive understanding of the structural characteristics and expression patterns of OsALOG members in rice.

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