植物壁相关激酶基因家族的起源,进化和多样化
Zhiqiang Zhang1,2, Wenqi Huo1, Xingxing Wang1
1National Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, China.
Plant cell reports
|September 24, 2023
概括
这项研究揭示了绿色植物壁相关激酶 (WAK) 基因的起源和演变. 这些基因对植物生长和应激反应至关重要,它们起源于早期,并显著多样化,特别是在开花植物中.
科学领域:
- 植物分子生物学 植物分子生物学
- 进化基因组学是进化的基因组学.
- 植物信号通道的信号通道.
背景情况:
- 壁相关激酶 (WAKs) 是受体类激酶 (RLKs) 的一个子家族,对植物细胞延长和应激反应至关重要.
- 虽然在开花植物中已知WAK功能,但它们在绿色植物中的进化历史尚不清楚.
研究的目的:
- 研究绿色植物中WAK基因家族的起源,进化和多样化.
- 为WAK基因的进化轨迹提供见解,帮助未来的功能研究.
主要方法:
- 对37个物种的1061个WAK基因进行了全面分析,从藻类到多细胞植物.
- 遗传学分析以确定进化关系和分类形成.
- 对阿拉比多普西斯和大米中cis作用元素和表达模式的分析.
- 在Gossypium物种中多化过程中检查WAK基因进化.
主要成果:
- WAK基因可能起源于植物分化之前,并且在陆地植物中广泛存在,特别是血管苗.
- 遗传学分析揭示了陆地植物WAKs的五个主要分类,在物种化后的谱系特异扩张.
- 在Arabidopsis和大米中观察到WAK基因的功能多样性,由cis作用元素和表达模式表明.
- 显著的基因增加和损失,特别是在血管苗中,增加了WAK基因拷贝数.
结论:
- WAK基因家族具有深厚的进化起源,并在绿色植物中经历了大量的多样化.
- 了解WAK基因进化为未来的功能特征和作物改进工作提供了基础.
相关概念视频
Cell Signaling in Plants
5.7K
Plant cells communicate to coordinate their cycle of growth, flowering and fruiting, and activities in roots, shoots, and leaves in response to the changing environmental conditions. Plant signaling is distinct from animal signaling. Plants primarily utilize enzyme-linked receptors, whereas the largest class of cell-surface receptors in animals are G-protein coupled receptors (GPCRs). Unlike animals, receptor tyrosine kinases are rare in plants. Instead, plants have a diverse class of...
5.7K
MAPK Signaling Cascades
5.6K
Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
5.6K
Cell Adhesion in Plants
2.7K
Plants have rigid cell walls that are made up of cell wall polysaccharides that mediate cell-cell adhesion. The primary cell walls of plants consist of two independent and interacting polysaccharide networks: a pectin matrix that embeds the second network comprising cellulose and hemicelluloses.
Pectins are complex heteropolymers mainly composed of negatively-charged α-D-glucopyranosyl uronic acid and some neutral glycosyl residues such as α-L-rhamnopyranose, α-L-arabinofuranose,...
Pectins are complex heteropolymers mainly composed of negatively-charged α-D-glucopyranosyl uronic acid and some neutral glycosyl residues such as α-L-rhamnopyranose, α-L-arabinofuranose,...
2.7K
Plant Cell Wall
56.8K
The plant cell wall gives plant cells shape, support, and protection. As a cell matures, its cell wall specializes according to the cell type. For example, the parenchyma cells of leaves possess only a thin, primary cell wall.
56.8K
Introduction to Plant Diversity
44.8K
From Water to Land
44.8K
Canonical Wnt Signaling Pathway
8.8K
The gene encoding the main signaling molecules of the Wnt signaling pathways (the Wnt proteins) was discovered almost four decades ago by Nüsslein-Volhard and Wieschaus. They identified and originally named the gene "wingless" (wg) after a phenotype discovered during their landmark genetic screen in Drosophila for body pattern defects. At around the same time, another researcher named Harold Varmus found that a murine tumor virus activates the mammalian wg homolog, Int-1, which...
8.8K


