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Published on: March 5, 2017
GENETICS OF ANGIOSPERM SHOOT APICAL MERISTEM DEVELOPMENT
Matthew M. S. Evans1, M. Kathryn Barton
1Department of Genetics, University of Wisconsin-Madison, Madison, Wisconsin 53706.
Researchers are unraveling the genetic basis of plant shoot apical meristem (SAM) development. Recent studies identify key genes controlling SAM formation, self-renewal, and pattern formation through genetic and molecular approaches.
Area of Science:
- Plant developmental biology
- Genetics
- Molecular biology
Background:
- The shoot apical meristem (SAM) is crucial for plant growth and development.
- Understanding SAM function is a fundamental problem in plant biology.
Purpose of the Study:
- To review recent genetic and molecular findings on angiosperm SAM structure and function.
- To examine the processes of SAM formation, self-renewal, and pattern formation.
Main Methods:
- Isolation of mutants to identify genes required for SAM development.
- Molecular identification of genes with expression patterns related to SAM function.
- Analysis of classical and molecular genetic experiments.
Main Results:
- Progress in genetically dissecting SAM structure and function.
- Identification of numerous genes involved in proper SAM development.
- Insights into the molecular mechanisms governing SAM processes.
Conclusions:
- Classical and molecular genetics have significantly advanced our understanding of SAM biology.
- Key genes controlling SAM formation, self-renewal, and pattern formation have been elucidated.
Related Concept Videos
Introduction to Seed Plants
Meristems and Plant Growth
Primary and Secondary Growth in Roots and Shoots
Morphogenesis
The Angiosperm Life Cycle
Cell Signaling in Plants

