Journal
JOURNAL OF INTEGRATIVE PLANT BIOLOGY
Volume 63, Issue 7, Pages 1181-1196Publisher
WILEY
DOI: 10.1111/jipb.13084
Keywords
compound leaves; genetic network; leaf development; leaf polarity; simple leaves
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Funding
- National Natural Science Foundation of China [31871459, 31671507]
- Shandong Province [ZR2020KC018, ZR2019MC013]
- China Postdoctoral Science Foundation [2019M662836]
- Project for Scientific Research Innovation Team of Young Scholar in Colleges and Universities of Shandong Province [2019KJE008]
- Project for innovation and entrepreneurship leader of Qingdao [19-3-2-3-zhc]
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This review discusses the diverse factors that regulate leaf development, including transcriptional regulators, microRNAs, and phytohormones. The formation of both simple leaves and compound leaves is controlled by these factors, with a focus on the model plants Arabidopsis thaliana and Medicago truncatula.
Substantial diversity exists for both the size and shape of the leaf, the main photosynthetic organ of flowering plants. The two major forms of leaf are simple leaves, in which the leaf blade is undivided, and compound leaves, which comprise several leaflets. Leaves form at the shoot apical meristem from a group of undifferentiated cells, which first establish polarity, then grow and differentiate. Each of these processes is controlled by a combination of transcriptional regulators, microRNAs and phytohormones. The present review documents recent advances in our understanding of how these various factors modulate the development of both simple leaves (focusing mainly on the model plant Arabidopsis thaliana) and compound leaves (focusing mainly on the model legume species Medicago truncatula).
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