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Single-Cell RNA Sequencing Reveals the Developmental Landscape of Wheat Roots

文献类型： 外文期刊

作者： Du, Zhenzhen 1 ; Zhang, Bin 1 ; Weng, Han 1 ; Gao, Li 1 ;

作者机构： 1.Chinese Acad Agr Sci, State Key Lab Biol Plant Dis & Insect Pests, Inst Plant Protect, Beijing, Peoples R China

2.Xinjiang Acad Agr Sci, Inst Plant Protect, Key Lab Integrated Pest Management Crop Northweste, Sci Observing & Expt Stn Korla,Minist China,Minist, Urumqi, Xinjiang, Peoples R China

关键词： allohexaploid wheat; root; scRNA-seq; transcriptional landscape

期刊名称：PLANT CELL AND ENVIRONMENT （ 影响因子：6.3； 五年影响因子：7.7 ）

ISSN： 0140-7791

年卷期： 2025 年 48 卷 5 期

页码：

收录情况： SCI

摘要： Allohexaploid wheat (Triticum aestivum L.) is one of the major crops worldwide, however there is very limited research on the transcriptional programmes of underlying cell type specification. Single-cell RNA sequencing (scRNA-seq) was used to unravel the transcriptome heterogeneity of cells and the composition of cell types in broad-spectrum organisms. Here, we reported the scRNA-seq transcriptomes of single cells from root tips of the wheat Chinese spring (CS) cultivar, defined cell-type-specific marker genes, and identified most of the major cell types. We further profiled the reconstructed developmental trajectories of the stem cell niche (SCN), proximal meristems and meristems, unveiled gene expression signature of water transportation, divulged cell-type-specific asymmetric gene transcription in subgenomes and explored the evolutionary conservation and divergence of wheat cultivar (CS) and rice cultivar (Nip and 93-11, ZH11) cell types through interspecies comparison. Collectively, this work underscored the transcriptional landscape of wheat cultivar (CS) roots and provided a single-cell perspective for differentiation trajectory application, unbalanced gene expression pattern and characteristics of cell types between two plant species, contributing to a better understanding of wheat cultivar (CS) root development at unprecedented resolution.

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