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From genes to networks: The genetic control of leaf development
Author(s) -
Wang Hongfeng,
Kong Fanjiang,
Zhou Chuanen
Publication year - 2021
Publication title -
journal of integrative plant biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.734
H-Index - 83
eISSN - 1744-7909
pISSN - 1672-9072
DOI - 10.1111/jipb.13084
Subject(s) - meristem , medicago truncatula , biology , botany , arabidopsis thaliana , arabidopsis , medicago , leaf blade , shoot , gene , genetics , symbiosis , bacteria , mutant
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 ).