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Connectance in Sorghum development: beyond the genotype-phenotype duality
1Department of Plant Sciences, The Hebrew University of Jerusalem, Jerusalem, Israel.
Bio Systems
|April 28, 2000
Summary
Connectance, the linkage between organs in Sorghum bicolor, inversely relates to heritability. This suggests developmental processes involve self-organization, impacting phenotype reliability and adaptability.
Area of Science:
- Plant biology
- Developmental biology
- Genetics
Background:
- Connectance, the degree of organ linkage, is crucial in developmental biology.
- Understanding connectance's role in phenotypic expression and heritability is essential.
Purpose of the Study:
- To investigate the relationship between connectance and heritability in Sorghum bicolor.
- To explore connectance's role in phenotypic expression, plasticity, and developmental reliability.
Main Methods:
- Measuring connectance in different Sorghum bicolor lines during reproductive development.
- Comparing connectance with character expression, variability, and heritability.
- Analyzing the influence of network dynamics on connectance.
Main Results:
- A negative correlation was found between connectance and heritability.
- Connectance actively participates in phenotypic expression and plasticity, not just noise.
- Connectance is influenced by the dynamics of biological networks.
Conclusions:
- Phenotype development involves both deterministic genetic programming and self-organized processes.
- Self-organization contributes to the reliability, stability, and adaptability of development.
- Interactions between genetic and self-organized dimensions have significant evolutionary implications.