Brassica rapa is a species of eudicot in the family Brassicaceae, which is an important leafy vegetable crop in China. It has a self-sufficient growth form and contains many subspecies with diverse leaf shapes. With the development of single-cell transcriptome sequencing technology, a single-cell transcriptome map of Brassica rapa leaves has been constructed[1-2]. Recent research mainly focuses on leaf development, including exploring the differentiation of palisade and spongy mesophyll cells and the identification of key genes at single-cell resolution[2], and detecting changes in gene expression patterns in different cell populations under heat stress[1]. which is of great significance for revealing the mechanisms of leaf development and leaf ball formation in leafy vegetables[2].

[1] Sun X, Feng D, Liu M, et al. Single-cell transcriptome reveals dominant subgenome expression and transcriptional response to heat stress in Chinese cabbage[J]. Genome Biology, 2022, 23(1): 1-19.
[2] Guo X, Liang J, Lin R, et al. Single‐cell transcriptome reveals differentiation between adaxial and abaxial mesophyll cells in Brassica rapa[J]. Plant Biotechnology Journal, 2022, 20(12): 2233.

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