ScRNA-seq reveals dark- and light-induced differentially expressed gene atlases of seedling leaves in Arachis hypogaea L.
文献类型： 外文期刊
作者： Deng, Quanqing 1 ; Du, Puxuan 1 ; Gangurde, Sunil S. 2 ; Hong, Yanbin 1 ; Xiao, Yuan 3 ; Hu, Dongxiu 1 ; Li, Haifen 1 ; Lu, Qing 1 ; Li, Shaoxiong 1 ; Liu, Haiyan 1 ; Wang, Runfeng 1 ; Huang, Lu 1 ; Wang, Wenyi 4 ; Garg, Vanika 5 ; Liang, Xuanqiang 1 ; Varshney, Rajeev K. 4 ; Chen, Xiaoping 1 ; Liu, Hao 1 ;
作者机构： 1.Guangdong Acad Agr Sci, South China Peanut Sub Ctr Natl Ctr Oilseed Crops, Crops Res Inst, Guangdong Prov Key Lab Crop Genet Improvement, Guangzhou, Guangdong, Peoples R China
2.Int Crops Res Inst Semi Arid Trop, Hyderabad, India
3.Wannan Med Coll, Sch Publ Hlth, Wuhu, Anhui, Peoples R China
4.South China Agr Univ, Coll Agr, Guangzhou, Guangdong, Peoples R China
5.Murdoch Univ, Food Futures Inst, WA State Agr Biotechnol Ctr, Ctr Crop & Food Innovat, Murdoch, WA, Australia
关键词： scRNA-seq; peanut leaf; single cell; light; gene atlases
期刊名称：PLANT BIOTECHNOLOGY JOURNAL （ 影响因子：13.8； 五年影响因子：13.2 ）
ISSN： 1467-7644
年卷期： 2024 年
页码：
收录情况： SCI
摘要： Although the regulatory mechanisms of dark and light-induced plant morphogenesis have been broadly investigated, the biological process in peanuts has not been systematically explored on single-cell resolution. Herein, 10 cell clusters were characterized using scRNA-seq-identified marker genes, based on 13 409 and 11 296 single cells from 1-week-old peanut seedling leaves grown under dark and light conditions. 6104 genes and 50 transcription factors (TFs) displayed significant expression patterns in distinct cell clusters, which provided gene resources for profiling dark/light-induced candidate genes. Further pseudo-time trajectory and cell cycle evidence supported that dark repressed the cell division and perturbed normal cell cycle, especially the PORA abundances correlated with 11 TFs highly enriched in mesophyll to restrict the chlorophyllide synthesis. Additionally, light repressed the epidermis cell developmental trajectory extending by inhibiting the growth hormone pathway, and 21 TFs probably contributed to the different genes transcriptional dynamic. Eventually, peanut AHL17 was identified from the profile of differentially expressed TFs, which encoded protein located in the nucleus promoted leaf epidermal cell enlargement when ectopically overexpressed in Arabidopsis through the regulatory phytohormone pathway. Overall, our study presents the different gene atlases in peanut etiolated and green seedlings, providing novel biological insights to elucidate light-induced leaf cell development at the single-cell level.
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