Li Zhijiang, Kang Xinmiao, Song Miaomiao, Dong Xiaojie, Ma Jinfeng, Yu Jinhai, Li Xiangyu, Zheng Yalu, Sun Guangquan, Diao Xianmin, Liu Xiaotong
Heilongjiang Provincial Key Laboratory for Genetic Improvement of Minor Grain Crops, Institute of Crop Resources, Heilongjiang Academy of Agricultural Sciences, Harbin 150086, China.
Key Laboratory of Molecular and Cellular Biology of Ministry of Education, Hebei Research Center of the Basic Discipline of Cell Biology, Hebei Collaboration Innovation Center for Cell Signaling, Hebei Key Laboratory of Molecular and Cellular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang 050024, China.
Int J Mol Sci. 2025 May 10;26(10):4576. doi: 10.3390/ijms26104576.
Leucine-rich repeat receptor-like kinases (LRR-RLKs) are involved in the regulation of various biological processes, including plant growth, development, and responses to biotic and abiotic stresses. Foxtail millet (), an important cereal crop, has been extensively studied for its stress tolerance mechanisms. In this study, we performed a comprehensive phylogenetic analysis and chromosomal mapping of LRR-RLK genes in . A total of 285 genes were identified and classified into 12 subfamilies based on phylogenetic relationships. Chromosome localization analysis revealed that genes are unevenly distributed across the chromosomes, with certain regions showing gene clusters. Functional analysis of these genes under biotic and abiotic stress conditions suggested that several family members are involved in key stress response pathways. Expression profiling indicated differential expression patterns of genes in response to various stresses, including drought, salinity, and pathogen infection, highlighting their potential roles in stress adaptation. In conclusion, the phylogenetic and functional analysis of the gene family in provides valuable insights into their roles in stress responses and lays the groundwork for future studies aimed at enhancing stress tolerance in foxtail millet.
富含亮氨酸重复序列的类受体蛋白激酶(LRR-RLKs)参与多种生物学过程的调控,包括植物生长、发育以及对生物和非生物胁迫的响应。谷子(Setaria italica)作为一种重要的谷类作物,其耐逆机制已得到广泛研究。在本研究中,我们对谷子中的LRR-RLK基因进行了全面的系统发育分析和染色体定位。共鉴定出285个LRR-RLK基因,并根据系统发育关系将其分为12个亚家族。染色体定位分析表明,这些基因在染色体上分布不均,某些区域呈现基因簇。这些基因在生物和非生物胁迫条件下的功能分析表明,几个LRR-RLK家族成员参与关键的胁迫响应途径。表达谱分析显示,LRR-RLK基因在响应干旱、盐度和病原体感染等各种胁迫时呈现差异表达模式,突出了它们在胁迫适应中的潜在作用。总之,对谷子LRR-RLK基因家族的系统发育和功能分析为其在胁迫响应中的作用提供了有价值的见解,并为未来旨在提高谷子耐逆性的研究奠定了基础。