昆虫中衍生 lncRNAs 的景观和进化动态
Dong Jing1, Yang Mei1, Hang Zhou1
1State Key Laboratory of Rice Biology and Breeding & Ministry of Agricultural and Rural Affairs Key Laboratory of Molecular Biology of Crop Pathogens and Insect Pests, Institute of Insect Sciences, Zhejiang University, Hangzhou, China.
Communications biology
|December 10, 2025
概括
这项研究揭示了115种昆虫物种中647,691个长非编码RNA (lncRNA),显示出大量与基因组大小和可转移元素的联系. 衍生 lncRNAs 为昆虫的发展和行为提供了新的调控洞察力.
科学领域:
- 基因组学就是基因组学.
- 进化生物学 进化生物学
- 分子生物学分子生物学
背景情况:
- 长非编码RNAs (lncRNAs) 是真核生物中的重要调节元素,但在昆虫中没有得到充分的研究.
- 了解昆虫的 lncRNA 多样性对于破译复杂的生物过程至关重要.
研究的目的:
- 为了对115种昆虫物种的 lncRNA 地图进行全面分析.
- 识别保存和新型 lncRNA,并研究它们的进化起源和功能作用.
- 建立一个可靠的 lncRNA 识别的最小转录组值.
主要方法:
- 在115种昆虫物种中对lncRNA谱的全基因组分析.
- 比较基因组学以确定保存的lncRNAs并评估序列保存.
- 对lncRNA表达水平,调控复杂性和与蛋白质编码基因的合成关系的分析.
- 研究可移植元素 (TE) 对lncRNA进化和功能的影响.
主要成果:
- 鉴定了647,691个具有显著物种间变异的多异构 lncRNA.
- lncRNA的丰度与基因组大小和可转移元素 (TE) 含量正相关.
- 发现了4806个由TE插入形成的衍生lncRNAs,它们与蛋白质编码基因保持了合成关系.
- 衍生lncRNAs表现出更高的表达,复杂性和功能性保护,特别是在发育和行为调节方面.
- 例:msex-lnc-001918证明了精子生成调节中的保留功能.
结论:
- 昆虫中的lncRNA进化是多样化的,衍生lncRNAs起着重要的调节作用.
- 在昆虫 lncRNAs 的出现和功能多样化中,TE 是关键的驱动因素.
- 蛋白质编码基因的转变有助于昆虫基因组中的新型调节机制,影响发展和行为.
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