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Confocal Live Imaging of Shoot Apical Meristems from Different Plant Species
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Integrative models for joint analysis of shoot growth and branching patterns
Jean Peyhardi1,2, Yves Caraglio3, Evelyne Costes4
1CIRAD, UMR AGAP and Inria, Virtual Plants, 34095, Montpellier, France.
The New Phytologist
|September 12, 2017
Summary
This study uses statistical models to understand how plant shoot growth and branching patterns develop. The models reveal how parent shoot growth influences branching events, explaining complex plant architecture.
Area of Science:
- Plant biology
- Developmental botany
- Statistical modeling
Background:
- Plant shoot growth and branching exhibit complex, structured patterns.
- Understanding the underlying developmental processes and interdependencies is crucial but challenging.
Purpose of the Study:
- To characterize the patterning mechanisms of plant shoot growth and branching.
- To decipher the roles of successive developmental events in plant architecture.
Main Methods:
- Developed semi-Markov switching partitioned conditional generalized linear models.
- Applied models to apple (Malus domestica) and pear (Pyrus spinosa) tree datasets.
- Analyzed the influence of parent shoot growth variables on axillary productions.
Main Results:
- Parent shoot growth variables significantly influence specific developmental events in branching.
- The models successfully represented the succession and lengths of branching zones.
- Comparative analysis of apple and pear tree growth patterns was achieved.
Conclusions:
- Integrative statistical models can decipher complex growth and branching patterns in plants.
- These models offer a framework for incorporating additional variables like local curvature or growth rate.
- The findings enhance understanding of plant developmental mechanisms and architecture.
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