Innovation, conservation, and repurposing of gene function in root cell type development
Innovation, conservation, and repurposing of gene function in root cell type development
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DOI：
10.1016/j.cell.2021.04.024
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发表时间：
2021-06-10
期刊：
影响因子：
64.5
通讯作者：
Brady, Siobhan M.
中科院分区：
文献类型：
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作者：
Kajala, Kaisa;Gouran, Mona;Brady, Siobhan M.
植物物种已经进化出无数的解决方案，包括复杂的细胞类型发育和调节，以适应动态环境。为了理解这种细胞多样性，我们分析了番茄根细胞类型的翻译组。使用木质部分化在番茄，功能创新的例子，再利用，和保守的转录因子的描述，相对于模式植物拟南芥。在外皮层调控网络中进一步观察到基因的再利用和创新，并说明其功能。水稻，番茄和拟南芥细胞群体的比较翻译组分析表明，与其他同源群体相比，根分生组织的表达保守性增加。此外，组成型表达基因的功能比细胞类型/组织富集基因的功能更保守。这些观察结果表明，细胞类型和泛细胞类型调节的高阶特性在植物和动物之间是进化保守的。
Plant species have evolved myriads of solutions, including complex cell type development and regulation, to adapt to dynamic environments. To understand this cellular diversity, we profiled tomato root cell type translatomes. Using xylem differentiation in tomato, examples of functional innovation, repurposing, and conservation of transcription factors are described, relative to the model plant Arabidopsis. Repurposing and innovation of genes are further observed within an exodermis regulatory network and illustrate its function. Comparative translatome analyses of rice, tomato, and Arabidopsis cell populations suggest increased expression conservation of root meristems compared with other homologous populations. In addition, the functions of constitutively expressed genes are more conserved than those of cell type/tissue-enriched genes. These observations suggest that higher order properties of cell type and pan-cell type regulation are evolutionarily conserved between plants and animals.