在Torreya grandis中,支柱状状物发育和脱落的分子调节机制
Weijie Chen1, Baofeng Jiang1, Hao Zeng1
1State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China.
Plant physiology
|February 16, 2024
概括
这项研究揭示了关键基因,调节了高精子体中支柱状状体的发育. 植物染色体交互因子4 (TgPIF4) 促进延长,而 WRKY 蛋白 (TgWRKY3,TgWRKY31) 通过素和斯酸途径控制衰变.
科学领域:
- 植物生物学 植物生物学
- 分子遗传学 分子遗传学
- 发展生物学 发展生物学
背景情况:
- 与血管精子相比,高精子表现出延长的支柱状状体发育.
- 调控高精子干性球体发育和消亡的分子机制在很大程度上是未知的.
研究的目的:
- 确定控制状状体发育和Torreya grandis.dehiscence的关键基因和分子通路.
- 阐明这些过程中已识别的基因的调节作用.
主要方法:
- 权重基因共同表达网络分析 (WGCNA) 用于识别与延长和脱离相关的基因模块.
- 蛋白质-DNA相互作用测试验证基因调节的有效性.
- 在Torreya grandis中进行的基因过度表达研究中,staminate strobili.
主要成果:
- WGCNA确定了与碳代谢和辅酶信号延长相关的基因,以及与α-烯酸代谢和phenylpropanoid途径相关的基因.
- TgPIF4被确定为延长的调节剂,直接激活TgTIR2和TgNADP-ME,并促进辅酶信号传递.
- 鉴定出TgWRKY3和TgWRKY31是衰变调节剂,分别激活红素生物合成 (TgPAL) 和素酸代谢 (TgJMT),导致早期衰变.
结论:
- TgPIF4在通过辅酶通路促进支柱状状体延长方面发挥着至关重要的作用.
- TgWRKY3和TgWRKY31是支柱状状物衰变的关键调节者,影响着素和甲基斯酸盐的水平.
- 这项研究提供了关于体精子中状状体发育的分子基础的见解.
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