在绿色棕色多态虫中复制的差异表达分析揭示了β-胡卜素结合蛋白在身体颜色中的作用
Chongyi Jiang1, Mahendra Varma1,2, Abhijeet Shah1
1Population Ecology Group, Institute of Biodiversity, Ecology and Evolution, Friedrich Schiller University Jena, Jena, Germany.
Molecular ecology
|October 23, 2025
概括
绿色和棕色的虫颜色变化与β-胡卜素结合蛋白 (βCBPs) 有关. 通过基因表达分析识别的这些基因可能代表了Caelifera特定的机制,用于Orthoptera的绿色染色.
科学领域:
- 进化生物学 进化生物学
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 形虫表现出跨物种的色彩多态性,绿色和棕色的形态是常见的.
- 这种颜色变异的遗传基础,可能是在平衡选择下,是不太了解的.
研究的目的:
- 鉴定了负责绿色与棕色色差异化的基因在Gomphocerus sibiricus.
- 研究β-胡卜素结合蛋白 (βCBPs) 在虫色素化中的作用.
主要方法:
- 使用转录组数据进行差异基因表达分析.
- 染色体层次的基因组组装用于Gomphocerus sibiricus.
- 在独立的样本集上复制分析以确保稳定性.
主要成果:
- 六个基因在数据集中的绿色变形中持续升级.
- 所有识别的基因都被标注为β-胡卜素结合蛋白 (βCBPs).
- 在研究物种中发现的βCBP基因重复 (祖先和谱系特异性).
- 在非Caelifera Orthoptera中基本上缺少βCBP基因同类.
结论:
- βCBPs是Gomphocerus sibiricus中绿色染色的关键候选物.
- βCBP介导的色素可能是Caelifera特有的特征.
- 这项研究为了解形虫的色素进化提供了基础.
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