单细胞RNA测序揭示了Physcomitrium patens中2D延长和3D增长的基因表达的动态
Zexi Chen1, Wenbo Wang1, Shizhao Zhou2
1State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan 430062, China.
Cell reports
|July 24, 2024
概括
植物向3D生长的进化是土地殖民的关键. 这项研究揭示了的细胞差异,识别了诸如β型碳酸无水酶 (βCA) 等对3D发育至关重要的基因.
科学领域:
- 植物生物学 植物生物学
- 发展生物学 发展生物学
- 基因组学就是基因组学.
背景情况:
- 从二维到三维生长的过渡是植物地球化的关键进化步骤.
- 了解推动这种转变的细胞和分子机制,特别是在像这样的早期陆地植物中,仍然不完整.
研究的目的:
- 在摩Physcomitrium patens的2D到3D生长过渡期间调查细胞异质性.
- 识别关键基因和调节细胞命运决定的分子通路,在不同的生长形式.
主要方法:
- 单细胞RNA测序 (scRNA-seq) 来自Physcomitrium patens植物性组织的17000多个细胞.
- 伪物质分析以推断发育轨迹并确定细胞命运的决定因素.
- 权重基因共同表达网络分析 (WGCNA) 揭示与特定发育过程相关的基因模块.
主要成果:
- scRNA-seq揭示了在2D (chloronema,caulonema) 和3D (bud,gametophore) 组织中显著的细胞异质性.
- 伪素体分析确定了对2D尖端延长与3D芽分化的细胞命运的候选基因.
- 确定了一种将β型碳酸无水酶 (βCA) 与auxin联系起来的基因模块,βCA在3D体育发育中起作用.
结论:
- 这项研究提供了高分辨率的洞察力,了解的二维到三维生长过渡期间的细胞多样性.
- 已识别的分子特征,包括βCA和辅酶信号,对于调节植物形态发生和适应陆地至关重要.
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