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一种特定于丸的阿拉基胺N-乙转移酶调节了蝶的二态精子功能和男性生育能力
Hao Sun1, Peng-Yi Huang1, Zhi-Ruo Zhang1
1State Key Laboratory of Agricultural and Forestry Biosecurity, College of Plant Protection, Nanjing Agricultural University, Nanjing, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|March 15, 2026
概括
一个新发现的基因,Lepidoptera保存的丸特异性阿里基胺N-乙转移酶 (LTNAT),对于的雄性生育至关重要. 它的干扰会影响精子的发育和运动,为害虫控制策略提供了潜力.
科学领域:
- 昆虫的生殖生物学 昆虫的生殖生物学
- 分子遗传学 分子遗传学
- 精子发育 精子发育
背景情况:
- 鸟表现出双形的精子:eupyrene (肥沃) 和apyrene (非肥沃).
- 这种精子变态的遗传调节在很大程度上是未知的.
研究的目的:
- 为了研究莱比多类精子变态的基因机制.
- 为了确定调节Lepidoptera雄性生育能力的关键基因.
主要方法:
- 利用秋季军 (Spodoptera frugiperda) 作为一个模型生物.
- 采用功能分析,多组学和CRISPR/Cas9基因编辑.
- 进行了大规模释放实验,以评估生育能力的影响.
主要成果:
- 确定LTNAT是一种丸特异性基因,对男性生育能力至关重要.
- LTNAT的枯竭破坏了欧皮林精子中的线粒体衍生物,并损害了阿皮林精子的运动性.
- 缺乏LTNAT会改变能量代谢,脂质平衡和跨膜传输.
- CRISPR/Cas9对LTNAT同类的淘汰证实了跨物种的功能性保护.
- 在受控实验中,LTNAT缺乏的男性显著降低了女性的生育能力.
结论:
- LTNAT是Lepidoptera中二形精子发育的核心调节者.
- LTNAT对精子功能和男性生育能力起着至关重要的作用.
- 对于新的杀虫剂和遗传害虫控制策略来说,LTNAT是一个有希望的目标.
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