Evolution of ADP-glucose pyrophosphorylase genes in plants
Author Information
Author(s): Georgelis Nikolaos, Braun Edward L, Hannah L Curtis
Primary Institution: University of Florida
Hypothesis
What are the evolutionary rates and patterns of gene duplications in ADP-glucose pyrophosphorylase (AGPase) genes in plants?
Conclusion
The large subunit of AGPase evolves faster than the small subunit due to permanently relaxed evolutionary constraints.
Supporting Evidence
- The large subunit of AGPase has undergone more gene duplications than the small subunit.
- Both subunits show evidence of positive selection and relaxation of purifying selection after duplication.
- The evolutionary rate of the large subunit is approximately 2.7 times faster than that of the small subunit.
Takeaway
Plants have two types of AGPase genes, and one type changes faster than the other because it has fewer restrictions on how it can evolve.
Methodology
The study analyzed gene duplications and evolutionary rates of AGPase subunits using phylogenetic methods and statistical models.
Limitations
The study may not account for all factors influencing gene evolution, such as environmental pressures.
Statistical Information
P-Value
0.0006
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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