Cell identity specification in plants: lessons from flower development

被引:16
作者
Xu, Xiaocai [1 ]
Smaczniak, Cezary [1 ]
Muino, Jose M. [2 ]
Kaufmann, Kerstin [1 ]
机构
[1] Humboldt Univ, Inst Biol, Plant Cell & Mol Biol, Berlin, Germany
[2] Humboldt Univ, Inst Biol, Syst Biol Gene Regulat, Berlin, Germany
关键词
Cell lineage; cellular differentiation; flower development; phytohormone; plant cell type; positional regulation; transcription factor; FLORAL ORGAN IDENTITY; PIONEER TRANSCRIPTION FACTORS; STOCHASTIC GENE-EXPRESSION; CHROMATIN ACCESSIBILITY; SPATIAL RECONSTRUCTION; POSITIONAL INFORMATION; CORTICAL MICROTUBULES; MOLECULAR-MECHANISMS; HISTONE ACETYLATION; SELF-ORGANIZATION;
D O I
10.1093/jxb/erab110
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Multicellular organisms display a fascinating complexity of cellular identities and patterns of diversification. The concept of 'cell type' aims to describe and categorize this complexity. In this review, we discuss the traditional concept of cell types and highlight the impact of single-cell technologies and spatial omics on the understanding of cellular differentiation in plants. We summarize and compare position-based and lineage-based mechanisms of cell identity specification using flower development as a model system. More than understanding ontogenetic origins of differentiated cells, an important question in plant science is to understand their position- and developmental stage-specific heterogeneity. Combinatorial action and crosstalk of external and internal signals is the key to cellular heterogeneity, often converging on transcription factors that orchestrate gene expression programs.
引用
收藏
页码:4202 / 4217
页数:16
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