Cui Ruifeng, Sun Jiuguang, Li Shuyan, Cui Yupeng, Rui Cun, Sun Minshan, Ye Wuwei
College of Biology and Food Engineering, Anyang Institute of Technology, Anyang 455000, China.
College of Plant Protection, Henan Agricultural University, Zhengzhou 450002, China.
Genes (Basel). 2025 Jul 11;16(7):813. doi: 10.3390/genes16070813.
: Cotton, a key global economic crop, suffers yield and quality losses due to salt stress. This study aims to analyze the cotton gene family and its role in salt stress responses. : We conducted a genome-wide analysis of the gene family in four cotton species, using phylogenetic trees, chromosomal mapping, and collinearity analyses to explore their evolutionary relationships and expansion mechanisms. We also examined gene structures, conserved motifs, and promoter -elements. : genes are evenly distributed across the four cotton species. Segmental duplication was found to be the main driver of gene expansion, with most pairs undergoing purifying selection. Distinct structural features and potential roles in plant growth and stress responses were identified. Notably, 11 genes showed significant expression changes under salt stress, especially in root tissues. : This study provides new insights into the function and salt stress response mechanisms of the cotton gene family, suggesting plays a key role in root-mediated salt tolerance and highlighting the potential of genes in enhancing cotton's salt tolerance.
棉花作为一种关键的全球经济作物，因盐胁迫而遭受产量和品质损失。本研究旨在分析棉花基因家族及其在盐胁迫响应中的作用。：我们对四种棉花物种中的该基因家族进行了全基因组分析，利用系统发育树、染色体定位和共线性分析来探究它们的进化关系和扩张机制。我们还研究了基因结构、保守基序和启动子元件。：该基因在四种棉花物种中均匀分布。发现片段重复是基因扩张的主要驱动力，大多数基因对经历了纯化选择。鉴定出了不同的结构特征及其在植物生长和胁迫响应中的潜在作用。值得注意的是，11个该基因在盐胁迫下表现出显著的表达变化，尤其是在根组织中。：本研究为棉花该基因家族的功能和盐胁迫响应机制提供了新的见解，表明其在根系介导的耐盐性中起关键作用，并突出了该基因在增强棉花耐盐性方面的潜力。
