分生组织
生物
拟南芥
细胞生物学
转录组
细胞分化
开枪
干细胞
诱导多能干细胞
突变体
植物
胚胎干细胞
植物细胞
遗传学
基因
基因表达
作者
James W. Satterlee,Josh Strable,Michael J. Scanlon
标识
DOI:10.1073/pnas.2018788117
摘要
Significance Plants possess the remarkable ability to grow and produce new organs throughout their lifespan, owing to the activities of persistent populations of pluripotent stem cells within their meristematic tips. Here we isolated individual cells from the microscopic shoot apical meristem (SAM) of maize and provide single-cell transcriptomic analysis of a plant shoot meristem. This study enabled an unbiased analysis of the developmental genetic organization of the maize shoot apex and uncovered evolutionarily divergent and conserved signatures of SAM homeostasis. The fine-scale resolution of single-cell analysis was used to reconstruct the process of shoot cell differentiation, whereby stem cells acquire diverse and distinct cell fates over developmental time in wild-type and mutant maize seedlings.
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