转录基因分析揭示了与两只鱼的寒冷耐受性相关的调节途径和关键基因
Jing Liu1, Yantao Liu1, Tianwei Liu1
1National Engineering Laboratory of Marine Germplasm Resources Exploration and Utilization, College of Marine Sciences and Technology, Zhejiang Ocean University, Zhoushan, 316022, China.
Journal of thermal biology
|May 23, 2025
概括
两种鱼的寒冷耐受性不同. 这项研究确定了关键的基因和途径,如PPAR信号传导,涉及寒冷适应,揭示了低温生存的分子机制.
科学领域:
- * * 海洋生物学 海洋生物学
- * 分子生物学 * 分子生物学
- * 进化生物学 进化生物学
背景情况:
- * 密切相关的鱼鱼种类对低温有不同的耐受性.
- *这种耐寒性差异的潜在分子机制尚不清楚.
研究的目的:
- * 通过比较转录基因方法在两种鱼鱼物种中确定与耐寒性相关的关键分子通路和基因.
- *阐明寒冷耐受性物种间差异的遗传基础.
主要方法:
- * 在受控 (23°C) 和寒冷压力 (15°C和11°C) 条件下对两种鱼鱼 (O. lacepedii和O. rebecca) 的比较转录基因分析.
- *使用转录组概况和Venn图进行差异表达基因分析.
- *基因本体学 (GO) 和基因和基因组 (KEGG) 丰富分析的京都百科全书.
- *权重基因共同表达网络分析 (WGCNA) 以确定枢纽基因.
主要成果:
- *转基因组分析确定了与跨种类寒冷耐受性分歧相关的差异表达基因.
- *GO和KEGG分析显示,在寒冷反应期间,细胞平衡,PPAR信号通路,细胞呼吸和氧化酸化的激活.
- *WGCNA强调PPARGC1A和α-tubulin是潜在的枢纽基因,有助于O. lacepedii的高耐寒性.
结论:
- * 该研究确定了关键的分子通路和基因,包括PPARGC1A和α-tubulin,涉及鱼的寒冷耐受性.
- *研究结果提供了对驱动鱼鱼寒冷适应演变的分子机制的见解.
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