在Sebastiscus marmoratus中的Hsp70基因家族:在热应激下全基因组识别和转录组分析
Xiaolu Han1, Shihuai Jin1, Chenyan Shou1
1Fishery College, Zhejiang Ocean University, Zhoushan 316002, China.
Genes
|September 28, 2023
概括
在Sebastiscus marmoratus中鉴定和分析了热冲击蛋白70kDa (Hsp70) 基因. 大多数Hsp70基因在热应激下被上调,这表明它们在热适应中的关键作用.
科学领域:
- 分子生物学分子生物学
- 基因组学就是基因组学.
- 海洋生物学 海洋生物学
背景情况:
- 热冲击蛋白70 kDa (Hsp70) 对于细胞对压力的反应至关重要.
- 一种靠近海岸的珊瑚礁鱼,Sebastiscus marmoratus,面临着环境温度的显著波动.
- 关于S. marmoratus中的Hsp70基因家族的信息有限.
研究的目的:
- 确定和描述S. marmoratus中的Hsp70基因家族.
- 为了研究在热应激下Hsp70基因的表达模式.
- 了解S. marmoratus中Hsp70基因的进化动态和功能作用.
主要方法:
- 对Hsp70基因的全基因组识别.
- 遗传学分析揭示基因扩张和重复事件.
- 转录组数据分析和qRT-PCR用于评估在热和冷压力下基因表达.
- 选择测试以推断复制基因的进化压力.
主要成果:
- 在S. marmoratus基因组中发现了15个Hsp70基因.
- 遗传学分析表明HSpa4,HSpa8和HSpa12a亚家族中的扩张和重复事件.
- 在热处理后,七个Hsp70基因显著上调;没有一个下调.
- 一个Hsp70基因在冷处理后显示出显著的上调.
- 在重复的基因对上观察到净化选择,这表明了亚功能化.
结论:
- 在S. marmoratus中,Hsp70基因家族经历了扩张和重复.
- Hsp70基因在S. marmoratus的热应激反应中发挥着重要作用.
- 这些发现为Scorpaeniformes热适应的分子机制提供了洞察力,并支持水产养殖研究.
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