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Liu, Zhixin; Zhou, Yaping; Guo, Jinggong; Li, Jiaoai; Tian, Zixia; Zhu, Zhinan; Wang, Jiajing; Wu, Rui; Zhang, Bo; Hu, Yongjian; Sun, Yijing; Shangguan, Yan; Li, Weiqiang; Li, Tao; Hu, Yunhe; Guo, Chenxi; Rochaix, Jean-David; Miao, Yuchen; Sun, Xuwu
Molecular Plant, 08/2020, Volume: 13, Issue: 8Journal Article
The regulation of stomatal lineage cell development has been extensively investigated. However, a comprehensive characterization of this biological process based on single-cell transcriptome analysis has not yet been reported. In this study, we performed RNA sequencing on 12 844 individual cells from the cotyledons of 5-day-old Arabidopsis seedlings. We identified 11 cell clusters corresponding mostly to cells at specific stomatal developmental stages using a series of marker genes. Comparative analysis of genes with the highest variable expression among these cell clusters revealed transcriptional networks that regulate development from meristemoid mother cells to guard mother cells. Examination of the developmental dynamics of marker genes via pseudo-time analysis revealed potential interactions between these genes. Collectively, our study opens the door for understanding how the identified novel marker genes participate in the regulation of stomatal lineage cell development. This study reports a comprehensive characterization of stomatal lineage cell development using single-cell transcriptome analysis. The authors identified the cell types and marker genes of stomatal lineage cells, and revealed the transcriptional networks that regulate the differentiation from meristemoid mother cells to guard mother cells.
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